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Weather & Climate in Edgerton, WY

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Edgerton has a cool climate with an average annual temperature of 45°F (7°C). Winters average 24°F in January while summers reach 70°F in July. The area gets 302 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 12.4 inches (drier than the 38-inch national average). The area receives 45.9 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 34. The city sits at an elevation of 4,915 feet.

Temperature

24°F Jan (-5°C) 70°F Jul (21°C)
Annual Average45.0°F
17% below US avg
January Average24°F (-5°C)
July Average70°F (21°C)
Sunny Days302 days/yr

Geography

Elevation4,915 ft (1,498 m)
Area0.3 sq mi (0.6 km²)
Population Density260/sq mi
Coordinates43.4134°N, 106.2474°W
TimezoneAmerica/Denver
CountyNatrona County County
Nearest AirportCasper/Natrona County International (CPR)
37 miles away

Precipitation & Snow

Annual Rainfall 12.4"
67% below US avg
Snowfall 45.9"
Wettest Month (May) 2.48"
Driest Month (Jan) 0.47"

Air Quality

AQI Median34.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score68.9 / 100
Social Vulnerability20.5 / 100
Community Resilience57.3 / 100

Hazard Breakdown

Tornado Relatively Low
Earthquake Relatively Low
Wildfire Relatively Moderate
Flood Relatively Moderate
Hail Relatively Low
Strong Wind Very Low
Heat Wave Very Low
Winter Weather Very High
Lightning Relatively Moderate
Ice Storm Relatively Low
Drought Very Low
Cold Wave Relatively Moderate
Landslide Relatively Moderate
Avalanche Relatively Moderate
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

52 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.

Oct 19, 1996 21 km E of Antelope Hills, Wyoming M4.2 39 km 5 km
Nov 3, 2017 57 km S of Ten Sleep, Wyoming M4.0 93 km 17 km
Apr 13, 2021 51 km S of Ten Sleep, Wyoming M3.9 92 km 12 km
Aug 29, 2004 16 km NNW of Douglas, Wyoming M3.8 85 km 5 km
Aug 2, 2021 12 km NW of Rolling Hills, Wyoming M3.8 53 km 10 km
Feb 1, 2003 11 km E of Antelope Hills, Wyoming M3.7 38 km 5 km
Feb 13, 2023 Wyoming M3.7 94 km 10 km
Oct 10, 1993 41 km W of Esterbrook, Wyoming M3.7 115 km 5 km
Jul 23, 1993 29 km WNW of Esterbrook, Wyoming M3.7 113 km 5 km
Aug 31, 1992 34 km WNW of Kaycee, Wyoming M3.6 79 km 5 km
Jul 4, 2021 43 km S of Ten Sleep, Wyoming M3.6 95 km 17 km
Aug 13, 2004 35 km SW of Alcova, Wyoming M3.5 138 km 5 km
Feb 15, 2004 19 km N of Douglas, Wyoming M3.5 87 km 10 km
Nov 16, 1993 17 km SSE of Ten Sleep, Wyoming M3.5 105 km 5 km
Oct 8, 2009 31 km SSW of Alcova, Wyoming M3.4 134 km 5 km
Sep 3, 2023 32 km NW of Kaycee, Wyoming M3.3 79 km 5 km
Mar 10, 1993 27 km W of Midwest, Wyoming M3.2 30 km 5 km
Oct 31, 2017 56 km S of Ten Sleep, Wyoming M3.2 98 km 15 km
Dec 13, 1993 14 km SW of Esterbrook, Wyoming M3.2 135 km 5 km
Aug 22, 2016 16 km S of Casper Mountain, Wyoming M3.2 92 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

109 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 2 fatalities, 31 injuries.

Date Rating Distance Path Fatalities
Jun 23, 2023 EF2 73 km 3.8 mi 0
Jun 1, 2018 EF2 97 km 1.0 mi 0
Jun 1, 2018 EF2 98 km 1.0 mi 0
Jun 12, 2017 EF2 47 km 1.6 mi 0
Aug 12, 2005 EF2 72 km 1.5 mi 2
Jul 21, 1987 EF2 50 km 5.0 mi 0
Jun 18, 1987 EF2 46 km 7.0 mi 0
Jul 20, 1978 EF2 47 km 1.0 mi 0
Jul 30, 1975 EF2 55 km 12.4 mi 0
May 29, 1971 EF2 55 km 0.2 mi 0
Jun 11, 1962 EF2 22 km 52.0 mi 0
Jun 12, 1953 EF2 94 km 2.0 mi 0
Jun 23, 2023 EF1 15 km 10.8 mi 0
May 20, 2007 EF1 87 km 2.0 mi 0
Jun 12, 2001 EF1 96 km 27.0 mi 0
Aug 11, 1999 EF1 49 km 0.2 mi 0
May 24, 1990 EF1 62 km 2.0 mi 0
Jun 12, 1986 EF1 54 km 1.0 mi 0
Jun 13, 1984 EF1 79 km 2.0 mi 0
Jul 17, 1983 EF1 71 km 1.5 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: HOUSE DRAW (167,966 acres, 2024).

Year Name Acres Burned Distance
2024 HOUSE DRAW 167,966 75 km
1996 OLMSTEAD D 44,562 77 km
2010 ORPHA 25,839 86 km
1999 CLARKELEN 21,432 76 km
2024 WILDCAT CREEK 18,751 94 km
1996 GEARY D. 2 15,564 54 km
2006 SAWMILL 15,379 15 km
2006 OUTLAW 2 12,279 62 km
2006 JACKSON CANYON 11,686 77 km
2000 ORMSBY 11,539 35 km
2020 RENO 10,830 60 km
2012 SHEEP HERDER HILL COMPLEX 10,759 76 km
2015 STATION 9,845 59 km
1996 HENRYS 9,839 49 km
2010 WILLOW CREEK 9,706 99 km
2000 HENDERSON 9,624 30 km
1996 BONER 9,414 71 km
1996 COLE CREEK 9,099 53 km
1988 ROCHELLE HILLS 2 8,718 95 km
1996 WILLOW 7,723 99 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 24°F (-5°C) 0.5 in Coldest, Driest
February 27°F (-3°C) 0.6 in
March 35°F (2°C) 0.9 in
April 43°F (6°C) 1.6 in
May 53°F (12°C) 2.5 in Wettest
June 63°F (17°C) 1.9 in
July 70°F (21°C) 1.3 in Warmest
August 69°F (21°C) 0.8 in
September 59°F (15°C) 0.9 in
October 47°F (8°C) 1.1 in
November 32°F (0°C) 0.8 in
December 24°F (-4°C) 0.6 in

Edgerton has a seasonal temperature swing of 47°F / from 24°F in January to 70°F in July. Total annual precipitation is 13.3 inches, with May being the wettest month (2.5") and January the driest (0.5").

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