All Countries
Weather & Climate in Manderson, WY
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Manderson experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 17°F in January while summers reach 74°F in July. The area gets 293 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 8.6 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 34. The city sits at an elevation of 3,896 feet.
Temperature
17°F Jan (-8°C)
74°F Jul (23°C)
| Annual Average | 45.7°F |
| 15% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 3,896 ft (1,188 m) |
| Area | 0.9 sq mi (2.3 km²) |
| Population Density | 128/sq mi |
| Coordinates | 44.2698°N, 107.9642°W |
| Timezone | America/Denver |
| County | Big Horn County County |
| Nearest Airport | Worland Municipal (WRL) 21 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 34.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 31.1 / 100 |
| Social Vulnerability | 52.6 / 100 |
| Community Resilience | 7.7 / 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
38 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.
| Nov 3, 2017 | 57 km S of Ten Sleep, Wyoming | M4.0 | 95 km | 17 km |
| Apr 13, 2021 | 51 km S of Ten Sleep, Wyoming | M3.9 | 91 km | 12 km |
| Feb 13, 2023 | Wyoming | M3.7 | 92 km | 10 km |
| Aug 31, 1992 | 34 km WNW of Kaycee, Wyoming | M3.6 | 89 km | 5 km |
| Jul 4, 2021 | 43 km S of Ten Sleep, Wyoming | M3.6 | 84 km | 17 km |
| Aug 7, 1991 | 31 km NNW of Pavillion, Wyoming | M3.5 | 112 km | 5 km |
| Nov 16, 1993 | 17 km SSE of Ten Sleep, Wyoming | M3.5 | 63 km | 5 km |
| Jan 9, 2007 | 7 km ENE of East Thermopolis, Wyoming | M3.5 | 68 km | 5 km |
| Sep 3, 2023 | 32 km NW of Kaycee, Wyoming | M3.3 | 91 km | 5 km |
| Apr 5, 2002 | 7 km W of South Flat, Wyoming | M3.3 | 38 km | 5 km |
| Mar 10, 1993 | 27 km W of Midwest, Wyoming | M3.2 | 145 km | 5 km |
| Oct 31, 2017 | 56 km S of Ten Sleep, Wyoming | M3.2 | 93 km | 15 km |
| Dec 16, 2012 | 40 km W of Owl Creek, Wyoming | M3.1 | 103 km | 5 km |
| Nov 9, 1999 | 58 km ENE of Shoshoni, Wyoming | M3.1 | 96 km | 5 km |
| Nov 30, 2012 | 33 km NNE of Powder River, Wyoming | M3.1 | 145 km | 5 km |
| Feb 13, 1998 | 12 km NE of Hyattville, Wyoming | M3.0 | 37 km | 5 km |
| Nov 8, 2000 | 40 km ENE of Shoshoni, Wyoming | M3.0 | 95 km | 5 km |
| Oct 25, 2009 | 34 km S of Buffalo, Wyoming | M3.0 | 107 km | 5 km |
| Jan 6, 2017 | 22 km SW of Owl Creek, Wyoming | M3.0 | 94 km | 13 km |
| Feb 22, 1992 | 30 km E of Buffalo, Wyoming | M2.9 | 131 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
64 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 1 fatality, 4 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Aug 2, 1985 | EF3 | 62 km | 0.2 mi | 0 |
| Jun 1, 2018 | EF2 | 74 km | 1.0 mi | 0 |
| Jun 1, 2018 | EF2 | 72 km | 1.0 mi | 0 |
| Jul 10, 2001 | EF2 | 53 km | 0.5 mi | 0 |
| Jul 11, 1978 | EF2 | 82 km | 0.4 mi | 0 |
| Jul 4, 1978 | EF2 | 26 km | 5.0 mi | 0 |
| Jul 24, 1967 | EF2 | 20 km | 0.1 mi | 0 |
| Jun 26, 1964 | EF2 | 82 km | 1.0 mi | 0 |
| Jul 9, 1962 | EF2 | 24 km | 0.5 mi | 0 |
| Jun 12, 1962 | EF2 | 42 km | 0.5 mi | 0 |
| Jun 26, 1959 | EF2 | 42 km | 9.2 mi | 1 |
| Jun 3, 1958 | EF2 | 32 km | 0.2 mi | 0 |
| Jun 19, 2019 | EF1 | 70 km | 4.1 mi | 0 |
| Aug 30, 2010 | EF1 | 50 km | 4.6 mi | 0 |
| Jun 1, 2009 | EF1 | 13 km | 0.4 mi | 0 |
| Jun 26, 2001 | EF1 | 24 km | 0.7 mi | 0 |
| Jun 6, 1997 | EF1 | 34 km | 1.0 mi | 0 |
| May 18, 1991 | EF1 | 93 km | 0.2 mi | 0 |
| Aug 25, 1986 | EF1 | 85 km | 1.0 mi | 0 |
| Jun 15, 1984 | EF1 | 82 km | 1.0 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 | 92 km |
| 1996 | EBLACK MTN | 53,211 | 57 km |
| 1996 | BATES | 47,060 | 78 km |
| 2018 | TEREK | 43,872 | 18 km |
| 2020 | NEIBER | 17,594 | 53 km |
| 1988 | LOST | 13,081 | 76 km |
| 2007 | BONE CREEK | 12,776 | 48 km |
| 1999 | ROOSTER | 9,624 | 80 km |
| 2021 | CRATER RIDGE | 8,147 | 77 km |
| 1996 | WILLOW | 7,723 | 74 km |
| 1996 | BUFFALO 2 | 7,173 | 58 km |
| 2018 | DENVER JAKE | 6,973 | 56 km |
| 2003 | LITTLE HORN II | 5,889 | 81 km |
| 2012 | GILEAD | 5,374 | 84 km |
| 2002 | RED WAFFLE | 5,060 | 100 km |
| 1996 | NBROKENBAC | 4,921 | 45 km |
| 2005 | BIG HORN | 4,899 | 99 km |
| 2012 | OTTER CREEK-UPPER BEE | 4,786 | 72 km |
| 2007 | LITTLE GOOSE | 4,767 | 81 km |
| 2000 | MUDDYCRK | 4,601 | 79 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-8°C) | 0.4 in | Coldest |
| February | 25°F (-4°C) | 0.2 in | Driest |
| March | 37°F (3°C) | 0.4 in | |
| April | 46°F (8°C) | 0.8 in | |
| May | 56°F (13°C) | 1.4 in | Wettest |
| June | 66°F (19°C) | 1.2 in | |
| July | 74°F (23°C) | 0.6 in | Warmest |
| August | 71°F (22°C) | 0.6 in | |
| September | 59°F (15°C) | 0.9 in | |
| October | 47°F (8°C) | 0.7 in | |
| November | 31°F (-0°C) | 0.4 in | |
| December | 20°F (-7°C) | 0.3 in |
Manderson has a seasonal temperature swing of 57°F / from 17°F in January to 74°F in July. Total annual precipitation is 7.9 inches, with May being the wettest month (1.4") and February the driest (0.2").