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Ten Sleep, WY

Full City Profile · Wyoming · Big Horn County County

2.3 /5.0
C Fair
214 Population 1,126/sq mi density
$30,893 Median Income $23,800 per capita
$212,500 Home Value $361,454 Zillow
$730 Median Rent 23.8% income on rent
48°F Avg Temperature 311 sunny days/yr
55 Violent Crime/100K 991 property/100K
C
Overall
2.3 / 5.0
Fair overall score based on economy, affordability, safety and education
C
Economy
2.4 / 5.0
$30,893 median income, 1.9% unemployment
C+
Affordability
2.8 / 5.0
$212,500 home value, $730/mo rent
F
Safety
1.0 / 5.0
55 violent crimes/100K
C+
Education
2.9 / 5.0
24.0% bachelor's degree or higher
Ten Sleep experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 26°F in January while summers reach 73°F in July. The area gets 311 sunny days per year. Annual precipitation totals 13.7 inches. The area receives 51.6 inches of snow annually. Air quality is rated Good with a median AQI of 34.

Temperature

26°F Jan (-3°C) 73°F Jul (23°C)
Annual Average47.8°F
11% below US avg
January Average26°F (-3°C)
July Average73°F (23°C)
Sunny Days311 days/yr

Geography

Elevation4,430 ft (1,350 m)
Area0.2 sq mi (0.5 km²)
Population Density1,126/sq mi
Coordinates44.0350°N, 107.4483°W
TimezoneAmerica/Denver
CountyBig Horn County County
Nearest AirportWorland Municipal (WRL)
25 miles away

Precipitation & Snow

Annual Rainfall 13.7"
64% below US avg
Snowfall 51.6"
Wettest Month (May) 2.01"
Driest Month (Feb) 0.51"

Air Quality

AQI Median34.0
RatingGood

Air Pollutants (EPA 2023)

Ozone (O₃)0.0457 ppm

Natural Hazard Risk

Overall RiskVery Low
Risk Score31.1 / 100
Social Vulnerability52.6 / 100
Community Resilience7.7 / 100

Hazard Breakdown

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

Earthquake History

50 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.0. Most recent: M2.6 on May 27, 2025.

Nov 3, 2017 57 km S of Ten Sleep, Wyoming M4.0 58 km
Oct 10, 1992 25 km SSE of Riverton, Wyoming M4.0 150 km
Aug 22, 2009 20 km SSE of Birney, Montana M4.0 146 km
Feb 25, 1993 31 km N of Arvada, Wyoming M3.9 149 km
Apr 13, 2021 51 km S of Ten Sleep, Wyoming M3.9 52 km
Feb 13, 2023 Wyoming M3.7 54 km
Feb 1, 2003 11 km E of Antelope Hills, Wyoming M3.7 148 km
Aug 31, 1992 34 km WNW of Kaycee, Wyoming M3.6 40 km
Jul 4, 2021 43 km S of Ten Sleep, Wyoming M3.6 44 km
Aug 7, 1991 31 km NNW of Pavillion, Wyoming M3.5 128 km
Nov 16, 1993 17 km SSE of Ten Sleep, Wyoming M3.5 18 km
Jan 9, 2007 7 km ENE of East Thermopolis, Wyoming M3.5 67 km
Apr 5, 2002 7 km W of South Flat, Wyoming M3.3 53 km
Sep 3, 2023 32 km NW of Kaycee, Wyoming M3.3 44 km
Oct 31, 2017 56 km S of Ten Sleep, Wyoming M3.2 57 km
Mar 10, 1993 27 km W of Midwest, Wyoming M3.2 97 km
Nov 30, 2012 33 km NNE of Powder River, Wyoming M3.1 99 km
Dec 16, 2012 40 km W of Owl Creek, Wyoming M3.1 132 km
May 10, 2013 25 km NW of Wright, Wyoming M3.1 140 km
Nov 9, 1999 58 km ENE of Shoshoni, Wyoming M3.1 62 km
Source: USGS (M2.5+, 1990–2025)

Tornado History

61 tornadoes (EF0+) within 100 km since 1950. Strongest: EF3. Total: 1 fatality, 4 injuries.

Date Rating Distance Fatalities
Aug 2, 1985 EF3 97 km 0
Jun 1, 2018 EF2 27 km 0
Jun 1, 2018 EF2 24 km 0
Jun 12, 2017 EF2 72 km 0
Jul 10, 2001 EF2 66 km 0
Jul 4, 1978 EF2 68 km 0
Jul 24, 1967 EF2 69 km 0
Jul 9, 1962 EF2 73 km 0
Jun 12, 1962 EF2 91 km 0
Jun 26, 1959 EF2 52 km 1
Jun 3, 1958 EF2 61 km 0
Jun 19, 2019 EF1 31 km 0
Aug 30, 2010 EF1 7 km 0
Jun 1, 2009 EF1 37 km 0
Jun 26, 2001 EF1 69 km 0
Jun 6, 1997 EF1 76 km 0
Jun 15, 1984 EF1 94 km 0
Jun 20, 1977 EF1 69 km 0
May 9, 1977 EF1 61 km 0
Jul 4, 1976 EF1 60 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

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

Year Name Acres Distance
2024 HOUSE DRAW 167,966 83 km
1996 EBLACK MTN 53,211 43 km
1996 BATES 47,060 45 km
2018 TEREK 43,872 32 km
2012 CATO 26,816 94 km
2020 NEIBER 17,594 43 km
1988 LOST 13,081 47 km
2007 BONE CREEK 12,776 69 km
2006 OUTLAW 2 12,279 60 km
2020 RENO 10,830 89 km
1996 WILLOW 7,723 31 km
1996 BUFFALO 2 7,173 20 km
2018 DENVER JAKE 6,973 39 km
2012 GILEAD 5,374 60 km
1996 NBROKENBAC 4,921 17 km
2012 OTTER CREEK-UPPER BEE 4,786 25 km
2007 LITTLE GOOSE 4,767 70 km
2000 MUDDYCRK 4,601 87 km
2007 COPPER MTN. 4,458 78 km
1992 UNNAMED 3,663 97 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 26°F (-3°C) 0.6 in
February 25°F (-4°C) 0.5 in Driest
March 34°F (1°C) 1.0 in
April 42°F (6°C) 1.5 in
May 52°F (11°C) 2.0 in Wettest
June 62°F (17°C) 1.8 in
July 73°F (23°C) 0.9 in Warmest
August 68°F (20°C) 0.8 in
September 57°F (14°C) 1.3 in
October 46°F (8°C) 1.1 in
November 31°F (-0°C) 0.7 in
December 22°F (-6°C) 0.6 in Coldest

Ten Sleep has a seasonal temperature swing of 51°F / from 22°F in December to 73°F in July. Total annual precipitation is 12.8 inches, with May being the wettest month (2.0") and February the driest (0.5").

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