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{{Expand|date=January 2008}}
[[Image:OmahaskylineIMG 1259.JPG|thumb|300px|[[Downtown Omaha]]'s skyline during rainy night.]]
[[Image:OmahaskylineIMG 1259.JPG|thumb|300px|[[Downtown Omaha]]'s skyline during rainy night.]]


The '''geography of [[Omaha, Nebraska]]''' is characterized by its riverfront position alongside the [[Missouri River]]. The city's geography, with its proximity to the river was a factor in making Omaha the "Gateway of the West" from which thousands of settlers traveled into the [[American West]] during the 19th century. Environmental issues include more than one hundred years of industrial smelting along the riverfront along with the continuous impact of [[suburban sprawl]] on the [[West Omaha|city's west side]]. The city's climate is far from temperate. Omaha has summer highs in the upper 90's to lower 100's with heat indices rising to 115 degrees or more. The winter lows fall to the other extreme of temperatures in the sub zero range with wind chill factors dipping down to -60 degrees. Ice and snow storms are common place from November-March and have been known to happen as early as October and as late as May. Severe thunderstorms are common during the spring and summer months. Straight line winds from 60-100+ MPH accompany these storms, as well as hail, cloud to ground lightening and in some instances, tornados.
The '''geography of [[Omaha, Nebraska]]''' is characterized by its riverfront position alongside the [[Missouri River]]. The city's geography, with its proximity to the river was a factor in making Omaha the "Gateway of the West" from which thousands of settlers traveled into the [[American West]] during the 19th century. Environmental issues include more than one hundred years of industrial smelting along the riverfront along with the continuous impact of [[suburban sprawl]] on the [[West Omaha|city's west side]]. The city's climate is temperate.



== Geography ==
== Geography ==
Omaha is located at {{coord|41|15|38|N|96|0|47|W}}. According to the [[United States Census Bureau]], the city has a total area of 118.9&nbsp;square miles (307.9&nbsp;km²). 115.7&nbsp;square miles (299.7&nbsp;km²) of it is land and 3.2&nbsp;square miles (8.2&nbsp;km²) of it is water. The total area is 2.67% water.
Omaha is located at {{coord|41|15|38|N|96|0|47|W}}. According to the [[United States Census Bureau]], the city has a total area of 118.9&nbsp;square miles (307.9&nbsp;km<sup>2</sup>).


Situated in the [[Midwestern United States]] on the shore of the Missouri River in eastern [[Nebraska]], the [[Port of Omaha]] helped the city grow in significance as a trading city. Much of Omaha is built in the [[Missouri River Valley]]. Other significant bodies of water in the [[Omaha-Council Bluffs metropolitan area]] include [[Lake Manawa]], [[Papillion Creek]], [[Carter Lake (Iowa-Nebraska)|Carter Lake]], [[Platte River]] and the [[Glenn Cunningham Lake]].
Situated in the [[Midwestern United States]] on the shore of the Missouri River in eastern [[Nebraska]], the [[Port of Omaha]] helped the city grow in significance as a trading city. Much of Omaha is built in the [[Missouri River Valley]]. Other significant bodies of water in the [[Omaha-Council Bluffs metropolitan area]] include [[Lake Manawa]], [[Papillion Creek]], [[Carter Lake (Iowa-Nebraska)|Carter Lake]], [[Platte River]] and the [[Glenn Cunningham Lake]].


The city's land has been altered considerably by human intervention, with substantial [[regrading]] throughout [[Downtown Omaha]] and scattered across the city. Minor [[land reclamation]] efforts, along with [[dam]]s further upstream, have brought dozens of acres along the Missouri into usage. Many of the natural variations in topography have been evened out.
The city's land has been altered considerably by human intervention, with substantial [[regrading]] throughout [[Downtown Omaha]] and scattered across the city. Minor [[land reclamation]] efforts, along with [[dam]]s further upstream, have brought dozens of acres along the Missouri into usage. Many of the natural variations in topography have been evened out.

The highest natural point in the city is Belvedere Point in North Omaha.


[[East Omaha]] sits on a [[flood plain]] west of the [[Missouri River]]. The area is the location of [[Carter Lake (Iowa-Nebraska)|Carter Lake]], an [[oxbow lake]]. The lake was once the site of East Omaha Island. In the crux of Carter Drive is an unnamed sulphur spring, and located south of there is Hardwood Creek. East Omaha was once the location of Florence Lake, which dried up at some point in the 1920s.
[[East Omaha]] sits on a [[flood plain]] west of the [[Missouri River]]. The area is the location of [[Carter Lake (Iowa-Nebraska)|Carter Lake]], an [[oxbow lake]]. The lake was once the site of East Omaha Island. In the crux of Carter Drive is an unnamed sulphur spring, and located south of there is Hardwood Creek. East Omaha was once the location of Florence Lake, which dried up at some point in the 1920s.


==Cityscape==
==Cityscape==
Similar to many other [[Western U.S.]] cities, Omaha was developed on a [[grid plan]] with the city center at the [[Missouri River]] and Dodge Street. This intersection was initially near the [[Lone Tree Ferry]], Omaha's impetus for founding; today the [[Downtown Omaha|city's downtown]] surrounds the area.
Similar to many other [[Western U.S.]] cities, Omaha was developed on a [[grid plan]] with the city center at the [[Missouri River]] and Dodge Street. This intersection was initially near the [[Lone Tree Ferry]], Omaha's impetus for founding; today the [[Downtown Omaha|city's downtown]] surrounds the area.


===Neighborhoods===
===Neighborhoods===
{{main|Neighborhoods of Omaha}}
{{main|Neighborhoods of Omaha}}


An expansive city covering substantial area, Omaha has many distinct neighborhoods. [[List of neighborhoods in Omaha, Nebraska|Dozens of small neighborhoods]] spread across several distinct areas in the city's core areas of [[Downtown Omaha]], [[Midtown Omaha]], [[South Omaha]] and [[North Omaha]]. [[West Omaha]], [[Northwest Omaha]], [[Southwest Omaha]] and several [[Sarpy County, Nebraska|Sarpy County]] cities and towns surround the city.
An expansive city covering a substantial area, Omaha has many different neighborhoods. [[List of neighborhoods in Omaha, Nebraska|Dozens of small neighborhoods]] spread across several distinct areas in the city's core areas of [[Downtown Omaha]], [[Midtown Omaha]], [[South Omaha]] and [[North Omaha]]. [[West Omaha]], [[Northwest Omaha]], [[Southwest Omaha]] and several [[Sarpy County, Nebraska|Sarpy County]] cities and towns surround the city.


==Climate==
==Climate==
Line 42: Line 38:
| float = right
| float = right
| clear = none
| clear = none
| source = NOAA <ref name = NCDC /> }}
| source = NOAA}}


Though located at approximately the same latitude as [[Rome, Italy]], Omaha, by virtue of its location near the center of North America far from large bodies of water or mountain ranges, has a [[humid continental climate]] ([[Koppen climate classification]] ''Dfa''), with hot summers and cold winters. Average July maximum and minimum temperatures are {{convert|87.4|F|1}} and {{convert|65.9|F|1}} respectively, with moderate humidity and relatively frequent thunderstorms, usually rather violent and capable of spawning severe weather or tornadoes; the January counterparts are {{convert|31.7|F|1}} and {{convert|11.6|F|1}}, though temperatures may easily fall below {{convert|0|F|0}} or rise above {{convert|50|F|0}}. The maximum temperature recorded in the city is {{convert|114|F|0}}, the minimum {{convert|-32|F|0}}. Average yearly precipitation is {{convert|30.2|in|mm|sigfig=3}}, falling mostly in the warmer months, as winter precipitation is more often in the form of lower-moisture-content snowfall, averaging {{convert|26.8|in|cm|0}} per season.<ref>New York Times Staff. (2004) ''The New York Times Guide to Essential Knowledge: A Desk Reference for the Curious Mind.'' Macmillan. p. 880.</ref><ref>[http://www.selectgreateromaha.com/Living-in-Greater-Omaha-Climate.aspx "Greater Omaha's Climate"]. Greater Omaha Economic Development Partnership. Retrieved 12/17/08.</ref>
Though located at approximately the same latitude as [[Rome, Italy]], Omaha, by virtue of its location near the center of North America far from large bodies of water or mountain ranges, has a [[humid continental climate]] ([[Köppen climate classification]] ''Dfa''), with hot summers and cold winters. Average July maximum and minimum temperatures are {{convert|87.4|F|1}} and {{convert|65.9|F|1}} respectively, with moderate humidity and relatively frequent thunderstorms, usually rather violent and capable of spawning severe weather or tornadoes; the January counterparts are {{convert|31.7|F|1}} and {{convert|11.6|F|1}}, though temperatures may easily fall below {{convert|0|F|0}} or rise above {{convert|50|F|0}}. The maximum temperature recorded in the city is {{convert|114|F|0}}, the minimum {{convert|-32|F|0}}. Average yearly precipitation is {{convert|30.2|in|mm|sigfig=3}}, falling mostly in the warmer months, as winter precipitation is more often in the form of lower-moisture-content snowfall, averaging {{convert|26.8|in|cm|0}} per season.<ref>New York Times Staff. (2004) ''The New York Times Guide to Essential Knowledge: A Desk Reference for the Curious Mind.'' Macmillan. p. 880.</ref><ref>[http://www.selectgreateromaha.com/Living-in-Greater-Omaha-Climate.aspx "Greater Omaha's Climate"] {{Webarchive|url=https://web.archive.org/web/20100818012617/http://www.selectgreateromaha.com/Living-in-Greater-Omaha-Climate.aspx |date=2010-08-18 }}. Greater Omaha Economic Development Partnership. Retrieved 12/17/08.</ref>


Omaha has had its share of natural disasters by water and wind. The city's Carter Lake was formed by a massive flood which altered the course of the Missouri River. The [[Great Flood of 1881]] filled Omaha and Council Bluffs with water for almost a month, causing two fatalities and millions of dollars in damage.<ref>[http://www.omaha.lib.ne.us/earlyomaha/floods/1881_flood_5.html "Flood of 1881"], [[Omaha Public Library]]. Retrieved 3/31/08.</ref> As many as 1,000 people were displaced by a flood in 1943, which sent the Missouri River, Carter Lake, and the old Florence Lake into homes and businesses throughout East Omaha. The flood of April 13, 1952 led to 40,000 people being evacuated from East Omaha and Carter Lake. President [[Harry S. Truman]] personally visited the scene of the flooding in Omaha and officially declared it a disaster area.<ref>Parrish, W.E., Foley, W.E., McCandless, P., et al. (1986) ''A History of Missouri.'' [[University of Missouri]] Press. p. 386.</ref>
Omaha has had its share of natural disasters by water and wind. The city's Carter Lake was formed by a massive flood which altered the course of the Missouri River. The [[Great Flood of 1881]] filled Omaha and Council Bluffs with water for almost a month, causing two fatalities and millions of dollars in damage.<ref>[http://www.omaha.lib.ne.us/earlyomaha/floods/1881_flood_5.html "Flood of 1881"] {{webarchive|url=https://web.archive.org/web/20090109063440/http://www.omaha.lib.ne.us/earlyomaha/floods/1881_flood_5.html |date=2009-01-09 }}, [[Omaha Public Library]]. Retrieved 3/31/08.</ref> As many as 1,000 people were displaced by a flood in 1943, which sent the Missouri River, Carter Lake, and the old Florence Lake into homes and businesses throughout East Omaha. The flood of April 13, 1952, led to 40,000 people being evacuated from East Omaha and Carter Lake. President [[Harry S. Truman]] personally visited the scene of the flooding in Omaha and officially declared it a disaster area.<ref>Parrish, W.E., Foley, W.E., McCandless, P., et al. (1986) ''A History of Missouri.'' [[University of Missouri]] Press. p. 386.</ref>


Several neighborhoods in Midtown and North Omaha were severely damaged by the [[Easter Sunday tornado]] of 1913, which destroyed many businesses and neighborhoods. More than 200 people died during the event.<ref>Sing, T (2003) ''Omaha's Easter Tornado of 1913''. Arcadia Publishing.</ref> The [[Omaha Tornado of 1975]] cut through 10&nbsp;miles of streets and residences, crossing the city's busiest intersection at 72nd and Dodge. Three people were killed and 133 were reported injured.<ref>[http://www.crh.noaa.gov/oax/archive/may1975/may675.php "May 6, 1975 Omaha Tornado"], [[NOAA]]'s National Weather Service Weather Forecast Office: Omaha/Valley, NE. Retrieved 9/23/08.</ref>
Several neighborhoods in Midtown and North Omaha were severely damaged by the [[Easter Sunday tornado]] of 1913, which destroyed many businesses and neighborhoods. More than 200 people died during the event.<ref>Sing, T (2003) ''Omaha's Easter Tornado of 1913''. Arcadia Publishing.</ref> The [[Omaha Tornado of 1975]] cut through 10&nbsp;miles of streets and residences, crossing the city's busiest intersection at 72nd and Dodge. Three people were killed and 133 were reported injured.<ref>[http://www.crh.noaa.gov/oax/archive/may1975/may675.php "May 6, 1975 Omaha Tornado"], [[NOAA]]'s National Weather Service Weather Forecast Office: Omaha/Valley, NE. Retrieved 9/23/08.</ref>
Line 53: Line 49:


==Environmental concerns==
==Environmental concerns==
A recent report named northeast Omaha "one of the most dangerous toxic waste sites in the nation" after the [[United States Environmental Protection Agency]] (EPA) showed that more than 2,600 children in the area have lead poisoning.<ref>Eilperin, J. (2004) [http://www.washingtonpost.com/ac2/wp-dyn/A11246-2004Nov24?language=printer Lack of Funding Slows Cleanup Of Hundreds of Superfund Sites]. ''Washington Post'' Thursday, November 25, 2004; Page A01</ref> In early 2003, a large section of East Omaha was declared a [[Superfund]] site after thousands of yards tested positive for high levels of lead contamination resulting from a nearby lead smeltering plant that operated for more than a century.<ref> Hein, J (2006) ''[http://leeterry.house.gov/Article_Details.aspx?NewsID=1341 House Passes Terry’s Bipartisan Amendment to Help Protect Children from Lead Poisoning]'' Office of Congressman Terry Lee.</ref>
A 2004 report named northeast Omaha "one of the most dangerous toxic waste sites in the nation" after the [[United States Environmental Protection Agency]] (EPA) showed that more than 2,600 children in the area have [[lead poisoning]].<ref>Eilperin, J. (2004) [https://www.washingtonpost.com/ac2/wp-dyn/A11246-2004Nov24?language=printer Lack of Funding Slows Cleanup Of Hundreds of Superfund Sites]{{dead link|date=June 2021|bot=medic}}{{cbignore|bot=medic}}. ''Washington Post'' Thursday, November 25, 2004; Page A01</ref> In early 2003, a large section of East Omaha was declared a [[Superfund]] site after thousands of yards tested positive for high levels of lead contamination resulting from a nearby lead smelter plant that operated for more than a century.<ref>Hein, J (2006) ''[http://leeterry.house.gov/Article_Details.aspx?NewsID=1341 House Passes Terry’s Bipartisan Amendment to Help Protect Children from Lead Poisoning] {{webarchive |url=https://web.archive.org/web/20061227181718/http://leeterry.house.gov/Article_Details.aspx?NewsID=1341 |date=December 27, 2006 }}'' Office of Congressman Terry Lee.</ref>


==Natural disasters==
==Natural disasters==
{{see|:Category:Natural disasters in Omaha}}
{{further|:Category:Natural disasters in Omaha, Nebraska}}


In 1877 Omaha's Carter Lake was formed by a massive flood which altered the course of the Missouri River. The [[Great Flood of 1881]] filled the Omaha and Council Bluffs with water for almost a month, causing two fatalities and millions of dollars in damage. As many as 1,000 people were displaced by a flood in 1943, which sent the Missouri River, [[Carter Lake]], and the old Florence Lake into peoples' homes and businesses throughout East Omaha. The flood of April 13, 1952 led to 40,000 people being evacuated from East Omaha and Carter Lake. President [[Harry S. Truman]] personally visited the scene of the flooding in Omaha and officially declared it a disaster area.<ref>NDNR para 6.</ref>
In 1877 Omaha's Carter Lake was formed by a massive flood which altered the course of the Missouri River. The [[Great Flood of 1881]] filled the Omaha and Council Bluffs with water for almost a month, causing two fatalities and millions of dollars in damage. As many as 1,000 people were displaced by a flood in 1943, which sent the Missouri River, [[Carter Lake (Iowa–Nebraska)|Carter Lake]], and the old Florence Lake into peoples' homes and businesses throughout East Omaha. The flood of April 13, 1952, led to 40,000 people being evacuated from East Omaha and Carter Lake. President [[Harry S. Truman]] personally visited the scene of the flooding in Omaha and officially declared it a disaster area.<ref>NDNR para 6.</ref>


Several neighborhoods in [[Midtown Omaha|central Omaha]] and [[North Omaha]] were severely damaged by the [[Easter Sunday tornado]] of 1913, which destroyed many businesses and neighborhoods. More than 200 people died during the event.<ref>[http://www.usgennet.org/usa/topic/preservation/nature/flood/chpt22.htm ''Story of the Great Plains Flood and Cyclone Disaster]</ref><ref>Sing, T (2003) ''Omaha's Easter Tornado of 1913''. Arcadia Publishing.</ref> The [[Omaha Tornado of 1975]] moved across {{convert|10|mi|km}} of streets and residences, crossing the city's busiest intersection at 72nd & Dodge. Three people were killed and 133 reported injured. Over 4,000 buildings were damaged and 287 were destroyed. In terms of damage, it was the costliest tornado in American history to that date, with insurance costs estimated at up to $1.1 billion (in 1975 dollars).
Several neighborhoods in [[Midtown Omaha|central Omaha]] and [[North Omaha]] were severely damaged by the [[Easter Sunday tornado]] of 1913, which destroyed many businesses and neighborhoods. More than 200 people died during the event.<ref>[http://www.usgennet.org/usa/topic/preservation/nature/flood/chpt22.htm ''Story of the Great Plains Flood and Cyclone Disaster]</ref><ref>Sing, T (2003) ''Omaha's Easter Tornado of 1913''. Arcadia Publishing.</ref> The [[Omaha Tornado of 1975]] moved across {{convert|10|mi|km}} of streets and residences, crossing the city's busiest intersection at 72nd & Dodge. Three people were killed and 133 reported injured. Over 4,000 buildings were damaged and 287 were destroyed. In terms of damage, it was the costliest tornado in American history to that date, with insurance costs estimated at up to $1.1 billion (in 1975 dollars).

==Notes==
{{notelist}}


==References==
==References==
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{{Omaha}}
{{Omaha}}


{{DEFAULTSORT:Geography Of Omaha}}
[[Category:Geography of Omaha, Nebraska| ]]
[[Category:Geography of Omaha, Nebraska| ]]

Revision as of 21:22, 29 December 2023

Downtown Omaha's skyline during rainy night.

The geography of Omaha, Nebraska is characterized by its riverfront position alongside the Missouri River. The city's geography, with its proximity to the river was a factor in making Omaha the "Gateway of the West" from which thousands of settlers traveled into the American West during the 19th century. Environmental issues include more than one hundred years of industrial smelting along the riverfront along with the continuous impact of suburban sprawl on the city's west side. The city's climate is temperate.

Geography

Omaha is located at 41°15′38″N 96°0′47″W / 41.26056°N 96.01306°W / 41.26056; -96.01306. According to the United States Census Bureau, the city has a total area of 118.9 square miles (307.9 km2).

Situated in the Midwestern United States on the shore of the Missouri River in eastern Nebraska, the Port of Omaha helped the city grow in significance as a trading city. Much of Omaha is built in the Missouri River Valley. Other significant bodies of water in the Omaha-Council Bluffs metropolitan area include Lake Manawa, Papillion Creek, Carter Lake, Platte River and the Glenn Cunningham Lake.

The city's land has been altered considerably by human intervention, with substantial regrading throughout Downtown Omaha and scattered across the city. Minor land reclamation efforts, along with dams further upstream, have brought dozens of acres along the Missouri into usage. Many of the natural variations in topography have been evened out.

East Omaha sits on a flood plain west of the Missouri River. The area is the location of Carter Lake, an oxbow lake. The lake was once the site of East Omaha Island. In the crux of Carter Drive is an unnamed sulphur spring, and located south of there is Hardwood Creek. East Omaha was once the location of Florence Lake, which dried up at some point in the 1920s.

Cityscape

Similar to many other Western U.S. cities, Omaha was developed on a grid plan with the city center at the Missouri River and Dodge Street. This intersection was initially near the Lone Tree Ferry, Omaha's impetus for founding; today the city's downtown surrounds the area.

Neighborhoods

An expansive city covering a substantial area, Omaha has many different neighborhoods. Dozens of small neighborhoods spread across several distinct areas in the city's core areas of Downtown Omaha, Midtown Omaha, South Omaha and North Omaha. West Omaha, Northwest Omaha, Southwest Omaha and several Sarpy County cities and towns surround the city.

Climate

Omaha
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
0.8
 
 
32
12
 
 
0.8
 
 
38
18
 
 
2.1
 
 
50
28
 
 
2.9
 
 
63
40
 
 
4.4
 
 
74
51
 
 
4
 
 
84
61
 
 
3.9
 
 
87
66
 
 
3.2
 
 
85
64
 
 
3.2
 
 
77
54
 
 
2.2
 
 
65
41
 
 
1.8
 
 
48
28
 
 
0.9
 
 
35
16
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: NOAA
Metric conversion
J
F
M
A
M
J
J
A
S
O
N
D
 
 
20
 
 
0
−11
 
 
20
 
 
3
−8
 
 
54
 
 
10
−2
 
 
75
 
 
17
4
 
 
113
 
 
23
10
 
 
100
 
 
29
16
 
 
98
 
 
31
19
 
 
82
 
 
30
18
 
 
81
 
 
25
12
 
 
56
 
 
18
5
 
 
46
 
 
9
−2
 
 
23
 
 
2
−9
Average max. and min. temperatures in °C
Precipitation totals in mm

Though located at approximately the same latitude as Rome, Italy, Omaha, by virtue of its location near the center of North America far from large bodies of water or mountain ranges, has a humid continental climate (Köppen climate classification Dfa), with hot summers and cold winters. Average July maximum and minimum temperatures are 87.4 °F (30.8 °C) and 65.9 °F (18.8 °C) respectively, with moderate humidity and relatively frequent thunderstorms, usually rather violent and capable of spawning severe weather or tornadoes; the January counterparts are 31.7 °F (−0.2 °C) and 11.6 °F (−11.3 °C), though temperatures may easily fall below 0 °F (−18 °C) or rise above 50 °F (10 °C). The maximum temperature recorded in the city is 114 °F (46 °C), the minimum −32 °F (−36 °C). Average yearly precipitation is 30.2 inches (767 mm), falling mostly in the warmer months, as winter precipitation is more often in the form of lower-moisture-content snowfall, averaging 26.8 inches (68 cm) per season.[1][2]

Omaha has had its share of natural disasters by water and wind. The city's Carter Lake was formed by a massive flood which altered the course of the Missouri River. The Great Flood of 1881 filled Omaha and Council Bluffs with water for almost a month, causing two fatalities and millions of dollars in damage.[3] As many as 1,000 people were displaced by a flood in 1943, which sent the Missouri River, Carter Lake, and the old Florence Lake into homes and businesses throughout East Omaha. The flood of April 13, 1952, led to 40,000 people being evacuated from East Omaha and Carter Lake. President Harry S. Truman personally visited the scene of the flooding in Omaha and officially declared it a disaster area.[4]

Several neighborhoods in Midtown and North Omaha were severely damaged by the Easter Sunday tornado of 1913, which destroyed many businesses and neighborhoods. More than 200 people died during the event.[5] The Omaha Tornado of 1975 cut through 10 miles of streets and residences, crossing the city's busiest intersection at 72nd and Dodge. Three people were killed and 133 were reported injured.[6]

Climate data for Omaha (Eppley Airfield), 1991–2020 normals[a], extremes 1871–present[b]
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 69
(21)
80
(27)
91
(33)
96
(36)
103
(39)
107
(42)
114
(46)
111
(44)
104
(40)
96
(36)
83
(28)
74
(23)
114
(46)
Mean maximum °F (°C) 56.2
(13.4)
61.6
(16.4)
76.8
(24.9)
86.3
(30.2)
91.3
(32.9)
95.9
(35.5)
98.4
(36.9)
96.8
(36.0)
93.0
(33.9)
85.3
(29.6)
71.2
(21.8)
58.3
(14.6)
99.8
(37.7)
Mean daily maximum °F (°C) 33.6
(0.9)
38.6
(3.7)
52.1
(11.2)
64.1
(17.8)
74.6
(23.7)
84.4
(29.1)
88.1
(31.2)
85.8
(29.9)
79.1
(26.2)
65.5
(18.6)
50.3
(10.2)
37.7
(3.2)
62.8
(17.1)
Daily mean °F (°C) 24.4
(−4.2)
28.9
(−1.7)
41.0
(5.0)
52.6
(11.4)
63.6
(17.6)
73.9
(23.3)
78.1
(25.6)
75.7
(24.3)
67.6
(19.8)
54.4
(12.4)
40.2
(4.6)
28.7
(−1.8)
52.4
(11.3)
Mean daily minimum °F (°C) 15.2
(−9.3)
19.3
(−7.1)
30.0
(−1.1)
41.1
(5.1)
52.7
(11.5)
63.4
(17.4)
68.0
(20.0)
65.6
(18.7)
56.1
(13.4)
43.2
(6.2)
30.2
(−1.0)
19.8
(−6.8)
42.1
(5.6)
Mean minimum °F (°C) −7
(−22)
−2.1
(−18.9)
8.8
(−12.9)
24.1
(−4.4)
37.1
(2.8)
49.8
(9.9)
55.8
(13.2)
53.6
(12.0)
39.4
(4.1)
25.7
(−3.5)
12.9
(−10.6)
−0.8
(−18.2)
−10.6
(−23.7)
Record low °F (°C) −32
(−36)
−26
(−32)
−16
(−27)
5
(−15)
25
(−4)
39
(4)
44
(7)
43
(6)
28
(−2)
8
(−13)
−14
(−26)
−25
(−32)
−32
(−36)
Average precipitation inches (mm) 0.75
(19)
0.95
(24)
1.79
(45)
3.17
(81)
4.66
(118)
4.44
(113)
3.55
(90)
4.60
(117)
2.96
(75)
2.32
(59)
1.45
(37)
1.22
(31)
31.86
(809)
Average snowfall inches (cm) 7.2
(18)
7.8
(20)
3.0
(7.6)
1.0
(2.5)
0.1
(0.25)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.5
(1.3)
1.7
(4.3)
5.8
(15)
27.1
(69)
Average extreme snow depth inches (cm) 5.5
(14)
6.2
(16)
3.2
(8.1)
0.6
(1.5)
0.1
(0.25)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.4
(1.0)
0.8
(2.0)
3.6
(9.1)
9.1
(23)
Average precipitation days (≥ 0.01 in) 6.9 7.3 8.0 10.5 12.8 11.0 9.9 8.9 7.8 7.2 6.0 6.8 103.1
Average snowy days (≥ 0.1 in) 5.6 5.7 2.4 0.9 0.1 0.0 0.0 0.0 0.0 0.4 1.8 4.8 21.7
Average relative humidity (%) 71.1 71.1 66.3 60.6 63.8 65.8 68.3 70.9 71.8 67.4 71.1 73.8 68.5
Average dew point °F (°C) 12.7
(−10.7)
17.8
(−7.9)
26.8
(−2.9)
37.0
(2.8)
48.7
(9.3)
59.2
(15.1)
64.8
(18.2)
63.0
(17.2)
54.3
(12.4)
41.4
(5.2)
29.5
(−1.4)
17.6
(−8.0)
39.4
(4.1)
Mean monthly sunshine hours 167.8 157.6 206.4 230.1 277.1 314.0 332.5 296.3 245.5 217.5 148.0 134.1 2,726.9
Percent possible sunshine 56 53 56 58 62 69 72 69 66 63 50 47 61
Average ultraviolet index 2 2 4 6 8 9 9 8 6 4 2 1 5
Source: NOAA (relative humidity 1961–1990 at Eppley Airfield, sun 1961–1990 at former Omaha NWS weather forecast office at 41°21′13″N 96°01′24″W / 41.3536°N 96.0233°W / 41.3536; -96.0233)[8][9][10][11]


Environmental concerns

A 2004 report named northeast Omaha "one of the most dangerous toxic waste sites in the nation" after the United States Environmental Protection Agency (EPA) showed that more than 2,600 children in the area have lead poisoning.[12] In early 2003, a large section of East Omaha was declared a Superfund site after thousands of yards tested positive for high levels of lead contamination resulting from a nearby lead smelter plant that operated for more than a century.[13]

Natural disasters

In 1877 Omaha's Carter Lake was formed by a massive flood which altered the course of the Missouri River. The Great Flood of 1881 filled the Omaha and Council Bluffs with water for almost a month, causing two fatalities and millions of dollars in damage. As many as 1,000 people were displaced by a flood in 1943, which sent the Missouri River, Carter Lake, and the old Florence Lake into peoples' homes and businesses throughout East Omaha. The flood of April 13, 1952, led to 40,000 people being evacuated from East Omaha and Carter Lake. President Harry S. Truman personally visited the scene of the flooding in Omaha and officially declared it a disaster area.[14]

Several neighborhoods in central Omaha and North Omaha were severely damaged by the Easter Sunday tornado of 1913, which destroyed many businesses and neighborhoods. More than 200 people died during the event.[15][16] The Omaha Tornado of 1975 moved across 10 miles (16 km) of streets and residences, crossing the city's busiest intersection at 72nd & Dodge. Three people were killed and 133 reported injured. Over 4,000 buildings were damaged and 287 were destroyed. In terms of damage, it was the costliest tornado in American history to that date, with insurance costs estimated at up to $1.1 billion (in 1975 dollars).

Notes

  1. ^ Mean monthly maxima and minima (i.e. the expected highest and lowest temperature readings at any point during the year or given month) calculated based on data at said location from 1991 to 2020.
  2. ^ Official records for Omaha kept at the Weather Bureau Office from January 1871 to May 1935 and at Eppley Airfield since June 1935 except for June 1977 thru December 1993 when the official station was Omaha WSFO.[7]

References

  1. ^ New York Times Staff. (2004) The New York Times Guide to Essential Knowledge: A Desk Reference for the Curious Mind. Macmillan. p. 880.
  2. ^ "Greater Omaha's Climate" Archived 2010-08-18 at the Wayback Machine. Greater Omaha Economic Development Partnership. Retrieved 12/17/08.
  3. ^ "Flood of 1881" Archived 2009-01-09 at the Wayback Machine, Omaha Public Library. Retrieved 3/31/08.
  4. ^ Parrish, W.E., Foley, W.E., McCandless, P., et al. (1986) A History of Missouri. University of Missouri Press. p. 386.
  5. ^ Sing, T (2003) Omaha's Easter Tornado of 1913. Arcadia Publishing.
  6. ^ "May 6, 1975 Omaha Tornado", NOAA's National Weather Service Weather Forecast Office: Omaha/Valley, NE. Retrieved 9/23/08.
  7. ^ ThreadEx
  8. ^ "Station: Omaha Eppley Airfield, NE". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991–2020). National Oceanic and Atmospheric Administration. Archived from the original on 2024-01-10. Retrieved November 11, 2021.
  9. ^ "NowData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved November 11, 2021.
  10. ^ "WMO Climate Normals for OMAHA,EPPLEY FIELD, NE 1961–1990". National Oceanic and Atmospheric Administration. Archived from the original on 2023-12-24. Retrieved November 11, 2021.
  11. ^ "WMO Climate Normals for OMAHA/NORTH, NE 1961–1990". National Oceanic and Atmospheric Administration. Archived from the original on 2023-03-23. Retrieved November 11, 2021.
  12. ^ Eilperin, J. (2004) Lack of Funding Slows Cleanup Of Hundreds of Superfund Sites[dead link]. Washington Post Thursday, November 25, 2004; Page A01
  13. ^ Hein, J (2006) House Passes Terry’s Bipartisan Amendment to Help Protect Children from Lead Poisoning Archived December 27, 2006, at the Wayback Machine Office of Congressman Terry Lee.
  14. ^ NDNR para 6.
  15. ^ Story of the Great Plains Flood and Cyclone Disaster
  16. ^ Sing, T (2003) Omaha's Easter Tornado of 1913. Arcadia Publishing.