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Weather & Climate in Shoshoni, WY

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

Shoshoni experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 15°F in January while summers reach 74°F in July. The area gets 310 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 8.0 inches (drier than the 38-inch national average). The area receives 17.5 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 34. The city sits at an elevation of 4,831 feet.

Temperature

15°F Jan (-10°C) 74°F Jul (23°C)
Annual Average45.6°F
16% below US avg
January Average15°F (-10°C)
July Average74°F (23°C)
Sunny Days310 days/yr

Geography

Elevation4,831 ft (1,472 m)
Area3.6 sq mi (9.3 km²)
Population Density144/sq mi
Coordinates43.2381°N, 108.1068°W
TimezoneAmerica/Denver
CountyFremont County County
Nearest AirportCentral Wyoming Regional (RIW)
21 miles away

Precipitation & Snow

Annual Rainfall 8.0"
79% below US avg
Snowfall 17.5"
Wettest Month (May) 1.54"
Driest Month (Feb) 0.20"

Air Quality

AQI Median34.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score59.7 / 100
Social Vulnerability52.8 / 100
Community Resilience11.8 / 100

Hazard Breakdown

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

Earthquake History

65 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.

Sep 21, 2013 20 km W of Fort Washakie, Wyoming M4.8 88 km 76 km
Nov 3, 2017 57 km S of Ten Sleep, Wyoming M4.0 66 km 17 km
Oct 10, 1992 25 km SSE of Riverton, Wyoming M4.0 48 km 5 km
May 26, 2000 5 km S of Bairoil, Wyoming M4.0 124 km 5 km
Apr 13, 2021 51 km S of Ten Sleep, Wyoming M3.9 70 km 12 km
May 17, 2009 24 km WNW of Jeffrey City, Wyoming M3.7 78 km 5 km
Jun 1, 1993 6 km N of Bairoil, Wyoming M3.7 113 km 5 km
Feb 13, 2023 Wyoming M3.7 67 km 10 km
Oct 21, 1996 42 km ESE of Boulder, Wyoming M3.7 122 km 5 km
Jul 4, 2021 43 km S of Ten Sleep, Wyoming M3.6 74 km 17 km
Aug 31, 1992 34 km WNW of Kaycee, Wyoming M3.6 108 km 5 km
Aug 13, 2004 35 km SW of Alcova, Wyoming M3.5 141 km 5 km
Aug 7, 1991 31 km NNW of Pavillion, Wyoming M3.5 68 km 5 km
Nov 16, 1993 17 km SSE of Ten Sleep, Wyoming M3.5 93 km 5 km
Jan 9, 2007 7 km ENE of East Thermopolis, Wyoming M3.5 48 km 5 km
Oct 8, 2009 31 km SSW of Alcova, Wyoming M3.4 144 km 5 km
Aug 26, 2022 27 km E of Bairoil, Wyoming M3.3 133 km 5 km
Sep 3, 2023 32 km NW of Kaycee, Wyoming M3.3 121 km 5 km
Apr 5, 2002 7 km W of South Flat, Wyoming M3.3 78 km 5 km
Oct 31, 2017 56 km S of Ten Sleep, Wyoming M3.2 61 km 15 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

34 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 3 injuries.

Date Rating Distance Path Fatalities
Jun 16, 1962 EF3 62 km 0.5 mi 0
Jul 10, 2001 EF2 66 km 0.5 mi 0
Jun 7, 1986 EF2 2 km 2.0 mi 0
Aug 27, 1973 EF2 95 km 0.5 mi 0
Jun 6, 1967 EF2 25 km 8.2 mi 0
May 6, 2014 EF1 20 km 1.5 mi 0
Aug 30, 2010 EF1 96 km 4.6 mi 0
Jun 6, 1997 EF1 34 km 2.0 mi 0
Aug 3, 1980 EF1 1 km 0.1 mi 0
Jun 20, 1977 EF1 96 km 0.1 mi 0
Aug 3, 1976 EF1 27 km 0.1 mi 0
Jun 6, 1968 EF1 27 km 3.0 mi 0
Jun 5, 1968 EF1 32 km 0.1 mi 0
Jun 14, 1967 EF1 40 km 0.5 mi 0
Apr 23, 1964 EF1 48 km 0.5 mi 0
Sep 9, 2024 EF0 46 km 0.2 mi 0
Aug 11, 2020 EF0 39 km 0.2 mi 0
Jun 3, 2014 EF0 85 km 2.2 mi 0
May 6, 2014 EF0 23 km 4.8 mi 0
Aug 14, 2009 EF0 74 km 0.8 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: KATESBASIN (141,128 acres, 2000).

Year Name Acres Burned Distance
2000 KATESBASIN 141,128 48 km
1996 EBLACK MTN 53,211 63 km
1996 BATES 47,060 65 km
2012 ALPINE LAKE 39,158 98 km
2020 NEIBER 17,594 65 km
2002 SOUTH FORK II 13,803 84 km
2002 PASS CREEK 13,724 84 km
1996 WILLOW 7,723 83 km
1996 BUFFALO 2 7,173 84 km
2018 DENVER JAKE 6,973 66 km
1985 GOAT MTN 6,450 87 km
2012 OTTER CREEK-UPPER BEE 4,786 94 km
2000 MUDDYCRK 4,601 47 km
2007 COPPER MTN. 4,458 32 km
2018 ZIMMERMAN 3,655 58 km
1999 LOWER GRAS 3,489 93 km
2017 BANJO 3,379 80 km
1998 LARSEN 1 3,157 100 km
2006 POISON SPIDER 3,063 95 km
2006 LITTLE CANYON CREEK 2,892 88 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 15°F (-10°C) 0.2 in Coldest
February 26°F (-4°C) 0.2 in Driest
March 37°F (3°C) 0.4 in
April 45°F (7°C) 1.0 in
May 55°F (13°C) 1.5 in Wettest
June 66°F (19°C) 1.2 in
July 74°F (23°C) 0.6 in Warmest
August 72°F (22°C) 0.6 in
September 60°F (16°C) 0.8 in
October 47°F (9°C) 0.7 in
November 31°F (-0°C) 0.3 in
December 19°F (-7°C) 0.2 in

Shoshoni has a seasonal temperature swing of 59°F / from 15°F in January to 74°F in July. Total annual precipitation is 7.7 inches, with May being the wettest month (1.5") and February the driest (0.2").

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