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Weather & Climate in Kelly, WY
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Kelly has a cool climate with an average annual temperature of 38°F (4°C). Winters average 14°F in January while summers reach 63°F in July. The area gets 291 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 23.0 inches (drier than the 38-inch national average). The area receives 165.9 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 6,648 feet.
Temperature
14°F Jan (-10°C)
63°F Jul (17°C)
| Annual Average | 38.4°F |
| 29% below US avg | |
| January Average | 14°F (-10°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 291 days/yr |
Geography
| Elevation | 6,648 ft (2,026 m) |
| Area | 0.4 sq mi (1.1 km²) |
| Population Density | 605/sq mi |
| Coordinates | 43.6219°N, 110.6321°W |
| Timezone | America/Denver |
| County | Teton County County |
| Nearest Airport | Jackson Hole (JAC) 5 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 34.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 29.5 / 100 |
| Social Vulnerability | 13.4 / 100 |
| Community Resilience | 23.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
1,933 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.8.
| Feb 3, 1994 | 4 km SSE of Auburn, Wyoming | M5.8 | 100 km | 8 km |
| Apr 21, 2001 | 29 km WSW of Freedom, Idaho | M5.3 | 99 km | 1 km |
| Sep 2, 2017 | 12 km E of Soda Springs, Idaho | M5.3 | 127 km | 10 km |
| Sep 10, 2017 | 9 km NNW of Georgetown, Idaho | M5.0 | 134 km | 10 km |
| Jan 7, 2004 | 20 km ESE of Kelly, Wyoming | M5.0 | 21 km | 3 km |
| Mar 30, 2014 | 22 km S of Mammoth, Wyoming | M4.8 | 128 km | 6 km |
| Sep 21, 2013 | 20 km W of Fort Washakie, Wyoming | M4.8 | 141 km | 76 km |
| Aug 27, 2016 | 4 km ENE of Bondurant, Wyoming | M4.8 | 50 km | 12 km |
| Aug 5, 2010 | 19 km E of Kelly, Wyoming | M4.8 | 20 km | 5 km |
| Feb 11, 1994 | 3 km SSE of Auburn, Wyoming | M4.8 | 100 km | 5 km |
| Sep 11, 2017 | 9 km NW of Georgetown, Idaho | M4.7 | 136 km | 8 km |
| Sep 3, 2017 | 10 km E of Soda Springs, Idaho | M4.7 | 129 km | 8 km |
| Dec 28, 1993 | 38 km NE of Bondurant, Wyoming | M4.7 | 43 km | 8 km |
| Feb 4, 1994 | 4 km WNW of Fairview, Wyoming | M4.7 | 106 km | 5 km |
| Sep 10, 2017 | 12 km ESE of Soda Springs, Idaho | M4.7 | 132 km | 5 km |
| Sep 3, 2017 | 15 km ESE of Soda Springs, Idaho | M4.7 | 129 km | 10 km |
| Sep 6, 2017 | 11 km NNW of Georgetown, Idaho | M4.6 | 134 km | 10 km |
| Sep 4, 2017 | 13 km ESE of Soda Springs, Idaho | M4.5 | 130 km | 6 km |
| Feb 7, 1994 | 4 km SW of Fairview, Wyoming | M4.5 | 112 km | 5 km |
| Feb 10, 1994 | 3 km WSW of Auburn, Wyoming | M4.4 | 99 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
20 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 1 injury.
| Date | Rating | Distance | Path | Fatalities |
| Jul 21, 1987 | EF4 | 39 km | 24.3 mi | 0 |
| Jun 12, 2022 | EF2 | 10 km | 2.1 mi | 0 |
| Sep 4, 2016 | EF1 | 69 km | 2.4 mi | 0 |
| Jun 4, 1991 | EF1 | 92 km | 0.2 mi | 0 |
| Apr 17, 1988 | EF1 | 92 km | 0.5 mi | 0 |
| May 15, 1984 | EF1 | 91 km | 8.0 mi | 0 |
| Jul 8, 1980 | EF1 | 94 km | 0.1 mi | 0 |
| Jun 20, 1977 | EF1 | 63 km | 2.0 mi | 0 |
| Jul 30, 1975 | EF1 | 92 km | 0.1 mi | 0 |
| Nov 17, 2017 | EF0 | 97 km | 5.0 mi | 0 |
| May 31, 2014 | EF0 | 59 km | 0.3 mi | 0 |
| May 28, 2008 | EF0 | 81 km | 0.0 mi | 0 |
| Jul 2, 2004 | EF0 | 79 km | 0.2 mi | 0 |
| Jun 8, 1995 | EF0 | 100 km | 0.1 mi | 0 |
| Jun 29, 1987 | EF0 | 92 km | 0.1 mi | 0 |
| Apr 27, 1987 | EF0 | 92 km | 0.2 mi | 0 |
| Jul 22, 1973 | EF0 | 98 km | 0.1 mi | 0 |
| Sep 21, 1962 | EF0 | 94 km | 0.1 mi | 0 |
| Jun 21, 1962 | EF0 | 77 km | 0.1 mi | 0 |
| Jun 9, 1954 | EF0 | 53 km | 0.3 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Yellowstone (90 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Yellowstone | Caldera(s) | 2,805 m (9,203 ft) | -1350 | 90 km |
| Hell's Half Acre | Shield | 1,631 m (5,351 ft) | -3250 | 147 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: MINK (135,433 acres, 1988).
| Year | Name | Acres Burned | Distance |
| 1988 | MINK | 135,433 | 74 km |
| 1988 | HUCK | 123,437 | 53 km |
| 1988 | SNAKE | 95,233 | 75 km |
| 2018 | ROOSEVELT | 55,330 | 66 km |
| 2016 | HENRYS CREEK | 52,988 | 93 km |
| 2016 | CLIFF CREEK | 36,131 | 42 km |
| 1988 | SHOSHONE | 29,941 | 84 km |
| 2012 | NORTH BUFFALO | 28,324 | 54 km |
| 1988 | REDSHOSHONE COMPLEX | 27,443 | 81 km |
| 2011 | NORTON POINT | 26,025 | 96 km |
| 2013 | HARDLUCK | 25,911 | 81 km |
| 1988 | RED | 21,341 | 77 km |
| 2016 | BERRY | 20,783 | 48 km |
| 2006 | PURDY | 18,653 | 48 km |
| 2007 | COLUMBINE 1 | 17,290 | 99 km |
| 1988 | FALLS | 16,607 | 64 km |
| 2016 | LAVA MOUNTAIN | 14,652 | 59 km |
| 2008 | NEW FORK | 14,481 | 87 km |
| 2009 | ARNICA | 10,738 | 99 km |
| 2011 | RED ROCK COMPLEX | 10,046 | 26 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 14°F (-10°C) | 2.6 in | Coldest, Wettest |
| February | 17°F (-8°C) | 1.9 in | |
| March | 24°F (-5°C) | 1.8 in | |
| April | 32°F (-0°C) | 1.7 in | |
| May | 41°F (5°C) | 2.1 in | |
| June | 49°F (9°C) | 1.8 in | |
| July | 63°F (17°C) | 1.3 in | Warmest, Driest |
| August | 56°F (13°C) | 1.4 in | |
| September | 48°F (9°C) | 1.5 in | |
| October | 38°F (3°C) | 1.5 in | |
| November | 25°F (-4°C) | 2.2 in | |
| December | 14°F (-10°C) | 2.4 in |
Kelly has a seasonal temperature swing of 48°F / from 14°F in January to 63°F in July. Total annual precipitation is 22.1 inches, with January being the wettest month (2.6") and July the driest (1.3").