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Weather & Climate in Castle Dale, UT

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

Castle Dale experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 25°F in January while summers reach 73°F in July. The area gets 330 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 16.6 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 5,798 feet.

Temperature

25°F Jan (-4°C) 73°F Jul (23°C)
Annual Average48.9°F
9% below US avg
January Average25°F (-4°C)
July Average73°F (23°C)
Sunny Days330 days/yr

Geography

Elevation5,798 ft (1,767 m)
Area2.2 sq mi (5.6 km²)
Population Density647/sq mi
Coordinates39.2217°N, 111.0227°W
TimezoneAmerica/Denver
CountySanpete County County
Nearest AirportCarbon County Regional/Buck Davis Field (PUC)
31 miles away

Precipitation & Snow

Annual Rainfall 8.0"
79% below US avg
Snowfall 16.6"
Wettest Month (Aug) 1.18"
Driest Month (Apr) 0.59"

Air Quality

AQI Median41.0
RatingGood

Natural Hazard Risk

Overall RiskVery Low
Risk Score38.6 / 100
Social Vulnerability38.0 / 100
Community Resilience52.6 / 100

Hazard Breakdown

Tornado Very Low
Earthquake Relatively Low
Wildfire Relatively Moderate
Flood Very Low
Hail Very Low
Strong Wind Very Low
Heat Wave Relatively Low
Winter Weather Relatively Moderate
Lightning Relatively Moderate
Ice Storm Very Low
Drought Relatively Low
Cold Wave No Rating
Landslide Relatively Low
Volcano Very Low
Avalanche Very High
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

672 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.3.

Jun 24, 1992 30 km WSW of Emery, Utah M4.3 67 km 5 km
Apr 17, 2003 6 km SSW of Levan, Utah M4.2 81 km 1 km
Jul 19, 2001 31 km NNE of Fremont, Utah M4.2 70 km 7 km
Mar 7, 2000 7 km N of Helper, Utah M4.2 61 km -3 km
Jun 29, 2014 6 km SE of Spring City, Utah M4.2 43 km 9 km
Feb 20, 2019 8 km SW of Kanosh, Utah M4.0 138 km 8 km
May 25, 2016 15 km NNE of Tabiona, Utah M4.0 144 km 16 km
Feb 23, 2001 12 km SW of Kanosh, Utah M4.0 143 km 2 km
May 1, 2025 4 km WNW of Independence, Utah M3.9 124 km 14 km
Jan 6, 1996 15 km SE of Castle Dale, Utah M3.9 17 km 6 km
Apr 14, 2010 30 km ENE of Boulder Town, Utah M3.9 134 km 13 km
May 31, 2022 37 km ENE of Thompson Springs, Utah M3.8 150 km 7 km
Feb 6, 1991 7 km WNW of Hiawatha, Utah M3.8 33 km 5 km
Oct 11, 1999 2 km W of Glenwood, Utah M3.8 100 km 9 km
Feb 5, 1998 7 km N of Helper, Utah M3.8 61 km -2 km
Dec 22, 1999 31 km SW of Emery, Utah M3.7 68 km 2 km
Jul 29, 2005 2 km NNW of Richfield, Utah M3.7 104 km 8 km
Jan 8, 1999 31 km SW of Emery, Utah M3.7 68 km 5 km
Jul 31, 2012 22 km WNW of Emery, Utah M3.7 46 km 7 km
Jun 9, 2021 17 km E of Independence, Utah M3.7 121 km 10 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

25 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2.

Date Rating Distance Path Fatalities
Jun 19, 2022 EF2 77 km 2.1 mi 0
Sep 8, 2002 EF2 53 km 2.7 mi 0
Nov 2, 1967 EF2 39 km 0.1 mi 0
May 4, 1961 EF2 78 km 9.4 mi 0
Jun 16, 1955 EF2 70 km 2.7 mi 0
Apr 4, 1993 EF1 99 km 0.1 mi 0
Aug 28, 1964 EF1 70 km 0.1 mi 0
Aug 7, 1957 EF1 79 km 1.5 mi 0
Jul 26, 2010 EF0 43 km 0.1 mi 0
Jun 8, 2006 EF0 74 km 0.5 mi 0
Jun 25, 2005 EF0 52 km 0.5 mi 0
Sep 12, 2002 EF0 98 km 0.2 mi 0
Sep 12, 2002 EF0 51 km 0.1 mi 0
Sep 8, 2002 EF0 70 km 0.2 mi 0
Aug 8, 2001 EF0 57 km 2.0 mi 0
Jul 25, 2001 EF0 46 km 0.5 mi 0
Jul 26, 1991 EF0 68 km 0.1 mi 0
Jul 26, 1991 EF0 73 km 0.1 mi 0
Aug 15, 1984 EF0 53 km 0.1 mi 0
Jul 24, 1981 EF0 88 km 0.2 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Nearby Volcanoes

1 volcano within 200 km. Closest: Black Rock Desert (131 km).

Name Type Elevation Last Eruption Distance
Black Rock Desert Volcanic field 1,800 m (5,906 ft) 1290 131 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: POLE CREEK (102,426 acres, 2018).

Year Name Acres Burned Distance
2018 POLE CREEK 102,426 95 km
2018 DOLLAR RIDGE 69,817 100 km
2012 WOOD HOLLOW 46,763 72 km
2012 SEELEY 44,626 40 km
2018 COAL HOLLOW 30,239 82 km
2007 SALT CREEK 26,924 78 km
2018 BALD MOUNTAIN 21,016 97 km
1996 LEAMINGTON COMPLEX (EAST SAGE) 18,360 90 km
2018 TRAIL MOUNTAIN 18,342 25 km
2021 BEAR 12,660 59 km
2017 TANK HOLLOW 11,003 89 km
1995 TURKEY 9,568 98 km
2018 BEAR TRAP 9,215 99 km
2021 BENNION CREEK 8,314 71 km
1986 WIDE CANYON 7,697 100 km
2012 CHURCH CAMP 7,016 81 km
2009 SAWMILL CANYON 6,253 94 km
2022 OLD WOMAN SOUTH RX 5,686 57 km
2020 WILLIAM 5,611 99 km
2016 LOWER EBBS 5,338 98 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 25°F (-4°C) 0.7 in Coldest
February 29°F (-2°C) 0.8 in
March 37°F (3°C) 0.8 in
April 44°F (7°C) 0.6 in Driest
May 54°F (12°C) 0.9 in
June 64°F (18°C) 0.7 in
July 73°F (23°C) 1.1 in Warmest
August 68°F (20°C) 1.2 in Wettest
September 60°F (15°C) 1.1 in
October 48°F (9°C) 1.1 in
November 35°F (1°C) 0.7 in
December 26°F (-3°C) 0.7 in

Castle Dale has a seasonal temperature swing of 48°F / from 25°F in January to 73°F in July. Total annual precipitation is 10.3 inches, with August being the wettest month (1.2") and April the driest (0.6").

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