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Weather & Climate in Upton, WY

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

Upton has a cool climate with an average annual temperature of 45°F (7°C). Winters average 21°F in January while summers reach 72°F in July. The area gets 311 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 16.2 inches (drier than the 38-inch national average). The area receives 46.4 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 4,216 feet.

Temperature

21°F Jan (-6°C) 72°F Jul (22°C)
Annual Average44.8°F
17% below US avg
January Average21°F (-6°C)
July Average72°F (22°C)
Sunny Days311 days/yr

Geography

Elevation4,216 ft (1,285 m)
Area3.0 sq mi (7.7 km²)
Population Density326/sq mi
Coordinates44.1040°N, 104.6365°W
TimezoneAmerica/Denver
CountyCrook County County
Nearest AirportNortheast Wyoming Regional (GCC)
48 miles away

Precipitation & Snow

Annual Rainfall 16.2"
57% below US avg
Snowfall 46.4"
Wettest Month (Jun) 2.60"
Driest Month (Jan) 0.39"

Air Quality

AQI Median34.0
RatingGood

Natural Hazard Risk

Overall RiskVery Low
Risk Score16.1 / 100
Social Vulnerability33.6 / 100
Community Resilience2.4 / 100

Hazard Breakdown

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

Earthquake History

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

Sep 25, 2009 15 km E of Alzada, Montana M4.2 107 km 5 km
Feb 25, 1993 31 km N of Arvada, Wyoming M3.9 146 km 5 km
Apr 9, 1996 34 km SW of Edgemont, South Dakota M3.7 123 km 5 km
Feb 6, 1996 13 km WNW of Hill City, South Dakota M3.7 74 km 5 km
Mar 9, 2025 7 km W of Fairburn, South Dakota M3.6 117 km 5 km
Dec 12, 2013 10 km WSW of Hermosa, South Dakota M3.5 110 km 5 km
Feb 15, 2004 19 km N of Douglas, Wyoming M3.5 144 km 10 km
Mar 26, 2021 10 km E of Edgemont, South Dakota M3.4 116 km 5 km
May 10, 2013 25 km NW of Wright, Wyoming M3.1 88 km 9 km
May 3, 1996 32 km SSW of Edgemont, South Dakota M3.1 128 km 5 km
Sep 27, 2016 43 km WSW of Gillette, Wyoming M3.0 110 km 14 km
Jun 30, 1993 25 km N of Douglas, Wyoming M3.0 138 km 5 km
Jun 29, 2024 22 km ESE of Hill View Heights, Wyoming M3.0 70 km 10 km
Jan 16, 2012 25 km E of Buffalo Gap, South Dakota M3.0 149 km 5 km
May 25, 2018 45 km W of Biddle, Montana M2.9 149 km 16 km
Feb 22, 1992 30 km E of Buffalo, Wyoming M2.9 136 km 5 km
Mar 10, 2011 22 km N of Van Tassell, Wyoming M2.9 145 km 5 km
Jun 16, 2024 7 km NNE of Buffalo Gap, South Dakota M2.9 127 km 8 km
Feb 19, 2018 35 km NE of Edgerton, Wyoming M2.8 116 km 5 km
Aug 7, 2022 38 km N of Arvada, Wyoming M2.8 149 km 11 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

201 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 2 fatalities, 44 injuries.

Date Rating Distance Path Fatalities
Jun 1, 2018 EF3 89 km 3.8 mi 0
Jun 29, 1993 EF3 55 km 3.0 mi 0
May 23, 1978 EF3 90 km 14.5 mi 0
Jun 25, 1975 EF3 27 km 11.5 mi 0
Jul 12, 1965 EF3 35 km 20.8 mi 0
Jun 23, 2023 EF2 89 km 3.8 mi 0
Jul 6, 2020 EF2 51 km 5.1 mi 0
Jul 6, 2020 EF2 48 km 2.1 mi 0
Jun 13, 2014 EF2 68 km 16.5 mi 0
Jul 13, 2009 EF2 56 km 9.4 mi 0
Aug 12, 2005 EF2 79 km 1.5 mi 2
Jul 12, 1993 EF2 93 km 2.0 mi 0
May 6, 1988 EF2 58 km 1.5 mi 0
May 10, 1985 EF2 22 km 1.0 mi 0
May 31, 1984 EF2 33 km 0.5 mi 0
Jun 25, 1975 EF2 72 km 16.3 mi 0
Jun 28, 1972 EF2 88 km 0.1 mi 0
Jul 23, 1969 EF2 79 km 0.2 mi 0
Jun 20, 1968 EF2 57 km 13.1 mi 0
Jul 23, 1966 EF2 94 km 3.8 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: JASPER (82,298 acres, 2000).

Year Name Acres Burned Distance
2000 JASPER 82,298 69 km
2012 OIL CREEK 63,182 30 km
2024 CONSTITUTION 23,963 82 km
1999 CLARKELEN 21,432 79 km
2024 WILDCAT CREEK 18,751 72 km
2003 RED POINT 18,057 71 km
2006 THORN DIVIDE COMPLEX 15,261 46 km
2001 ELK MOUNTAIN 2 13,758 60 km
2001 ROGERS SHACK 11,794 80 km
2002 GRIZZLY GULCH 11,487 80 km
2011 THOMPSON 10,519 97 km
1988 ROCHELLE HILLS 2 8,718 69 km
1994 PETERSON-ELLIOTT 8,321 32 km
1999 ANTELOPE 7,479 100 km
2002 POWNELL 7,460 94 km
2011 WHOOPUP 7,377 61 km
2022 FISH 7,045 34 km
2016 KARA CREEK 6,543 32 km
1996 WILDCAT 6,281 89 km
2006 HORSE CREEK 2 6,260 99 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 21°F (-6°C) 0.4 in Coldest, Driest
February 25°F (-4°C) 0.5 in
March 34°F (1°C) 0.6 in
April 43°F (6°C) 1.5 in
May 54°F (12°C) 2.5 in
June 64°F (18°C) 2.6 in Wettest
July 72°F (22°C) 1.8 in Warmest
August 70°F (21°C) 1.5 in
September 59°F (15°C) 1.2 in
October 46°F (8°C) 1.0 in
November 31°F (-0°C) 0.6 in
December 21°F (-6°C) 0.6 in

Upton has a seasonal temperature swing of 51°F / from 21°F in January to 72°F in July. Total annual precipitation is 14.7 inches, with June being the wettest month (2.6") and January the driest (0.4").

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