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Weather & Climate in Story, WY
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Story has a cool climate with an average annual temperature of 44°F (6°C). Winters average 27°F in January while summers reach 67°F in July. The area gets 276 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 27.7 inches (drier than the 38-inch national average). The area receives 138.3 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 5,232 feet.
Temperature
27°F Jan (-3°C)
67°F Jul (19°C)
| Annual Average | 43.5°F |
| 19% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 67°F (19°C) |
| Sunny Days | 276 days/yr |
Geography
| Elevation | 5,232 ft (1,595 m) |
| Area | 7.1 sq mi (18.5 km²) |
| Population Density | 165/sq mi |
| Coordinates | 44.5731°N, 106.9142°W |
| Timezone | America/Denver |
| County | Sheridan County County |
| Nearest Airport | Sheridan County (SHR) 14 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 34.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 65.2 / 100 |
| Social Vulnerability | 32.4 / 100 |
| Community Resilience | 50.9 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
47 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.
| Aug 22, 2009 | 20 km SSE of Birney, Montana | M4.0 | 73 km | 14 km |
| Nov 3, 2017 | 57 km S of Ten Sleep, Wyoming | M4.0 | 123 km | 17 km |
| Feb 25, 1993 | 31 km N of Arvada, Wyoming | M3.9 | 78 km | 5 km |
| Apr 13, 2021 | 51 km S of Ten Sleep, Wyoming | M3.9 | 117 km | 12 km |
| Feb 13, 2023 | Wyoming | M3.7 | 120 km | 10 km |
| Aug 31, 1992 | 34 km WNW of Kaycee, Wyoming | M3.6 | 84 km | 5 km |
| Dec 23, 1991 | 10 km SW of Colstrip, Montana | M3.6 | 140 km | 5 km |
| Jul 4, 2021 | 43 km S of Ten Sleep, Wyoming | M3.6 | 110 km | 17 km |
| Jan 9, 2007 | 7 km ENE of East Thermopolis, Wyoming | M3.5 | 139 km | 5 km |
| Nov 16, 1993 | 17 km SSE of Ten Sleep, Wyoming | M3.5 | 85 km | 5 km |
| Apr 5, 2002 | 7 km W of South Flat, Wyoming | M3.3 | 117 km | 5 km |
| Sep 3, 2023 | 32 km NW of Kaycee, Wyoming | M3.3 | 73 km | 5 km |
| Oct 31, 2017 | 56 km S of Ten Sleep, Wyoming | M3.2 | 125 km | 15 km |
| Mar 10, 1993 | 27 km W of Midwest, Wyoming | M3.2 | 133 km | 5 km |
| Nov 30, 2012 | 33 km NNE of Powder River, Wyoming | M3.1 | 143 km | 5 km |
| Nov 9, 1999 | 58 km ENE of Shoshoni, Wyoming | M3.1 | 130 km | 5 km |
| May 10, 2013 | 25 km NW of Wright, Wyoming | M3.1 | 121 km | 9 km |
| Sep 27, 2016 | 43 km WSW of Gillette, Wyoming | M3.0 | 85 km | 14 km |
| Oct 25, 2009 | 34 km S of Buffalo, Wyoming | M3.0 | 63 km | 5 km |
| Feb 13, 1998 | 12 km NE of Hyattville, Wyoming | M3.0 | 55 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
69 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 1 fatality, 6 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 1, 2018 | EF3 | 99 km | 3.8 mi | 0 |
| Aug 2, 1985 | EF3 | 87 km | 0.2 mi | 0 |
| May 23, 1978 | EF3 | 99 km | 14.5 mi | 0 |
| Jun 1, 2018 | EF2 | 67 km | 1.0 mi | 0 |
| Jun 1, 2018 | EF2 | 63 km | 1.0 mi | 0 |
| Jun 12, 2017 | EF2 | 100 km | 1.6 mi | 0 |
| Jul 4, 1978 | EF2 | 86 km | 5.0 mi | 0 |
| Jun 26, 1959 | EF2 | 51 km | 9.2 mi | 1 |
| Jun 3, 1958 | EF2 | 69 km | 0.2 mi | 0 |
| Jun 19, 2019 | EF1 | 49 km | 4.1 mi | 0 |
| Aug 30, 2010 | EF1 | 81 km | 4.6 mi | 0 |
| Jun 21, 2010 | EF1 | 90 km | 1.0 mi | 0 |
| Jun 1, 2009 | EF1 | 79 km | 0.4 mi | 0 |
| Jun 26, 2001 | EF1 | 91 km | 0.7 mi | 0 |
| Aug 11, 1999 | EF1 | 99 km | 0.2 mi | 0 |
| Jun 6, 1997 | EF1 | 90 km | 1.0 mi | 0 |
| Jun 21, 1984 | EF1 | 87 km | 1.0 mi | 0 |
| Jun 21, 1984 | EF1 | 48 km | 2.0 mi | 0 |
| Jun 15, 1984 | EF1 | 50 km | 1.0 mi | 0 |
| May 9, 1977 | EF1 | 42 km | 4.5 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: REMINGTON (192,577 acres, 2024).
| Year | Name | Acres Burned | Distance |
| 2024 | REMINGTON | 192,577 | 84 km |
| 2024 | HOUSE DRAW | 167,966 | 68 km |
| 2017 | DEER CREEK | 90,147 | 56 km |
| 2024 | FLAT ROCK | 50,782 | 88 km |
| 2018 | TEREK | 43,872 | 84 km |
| 2006 | BUFFALO CREEK | 37,630 | 56 km |
| 2011 | DIAMOND COMPLEX | 33,546 | 93 km |
| 2017 | WITTEN | 27,938 | 89 km |
| 2012 | CATO | 26,816 | 37 km |
| 2020 | WADDLE CREEK | 25,809 | 50 km |
| 2024 | MCGHEE | 19,161 | 81 km |
| 1988 | KIRBY | 14,253 | 84 km |
| 1994 | BARREL SPR | 13,526 | 44 km |
| 1988 | LOST | 13,081 | 30 km |
| 2007 | BONE CREEK | 12,776 | 59 km |
| 1991 | HORSLEY | 11,829 | 56 km |
| 2007 | POWDER RIVER COMPLEX | 11,716 | 93 km |
| 2020 | RENO | 10,830 | 83 km |
| 2002 | LINE CREEK | 10,693 | 90 km |
| 2007 | POWDER RIVER COMPLEX (TRAIL CREEK) | 10,083 | 73 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 0.8 in | |
| February | 25°F (-4°C) | 0.7 in | Driest |
| March | 31°F (-1°C) | 1.1 in | |
| April | 39°F (4°C) | 1.9 in | |
| May | 48°F (9°C) | 2.5 in | Wettest |
| June | 57°F (14°C) | 2.4 in | |
| July | 67°F (19°C) | 1.2 in | Warmest |
| August | 64°F (18°C) | 1.0 in | |
| September | 54°F (12°C) | 1.6 in | |
| October | 43°F (6°C) | 1.3 in | |
| November | 31°F (-1°C) | 0.8 in | |
| December | 24°F (-4°C) | 0.8 in | Coldest |
Story has a seasonal temperature swing of 43°F / from 24°F in December to 67°F in July. Total annual precipitation is 16.1 inches, with May being the wettest month (2.5") and February the driest (0.7").