Weather & Climate in Summit, UT

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

Summit has a cool climate with an average annual temperature of 37°F (3°C). Winters average 20°F in January while summers reach 57°F in July. The area gets 318 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 5,973 feet.

Temperature

20°F Jan (-6°C) 57°F Jul (14°C)

Annual Average	36.5°F
	32% below US avg
January Average	20°F (-6°C)
July Average	57°F (14°C)
Sunny Days	318 days/yr

Geography

Elevation	5,973 ft (1,821 m)
Area	0.7 sq mi (1.8 km²)
Population Density	306/sq mi
Coordinates	37.8053°N, 112.9331°W
Timezone	America/Denver
County	Iron County County
Nearest Airport	Cedar City Regional (CDC) 12 miles away

Precipitation & Snow

Wettest Month (Aug) 1.97"

Driest Month (Jun) 0.71"

Air Quality

AQI Median	41.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	61.4 / 100
Social Vulnerability	10.6 / 100
Community Resilience	36.6 / 100

Hazard Breakdown

Tornado	Very Low
Earthquake	Relatively Low
Wildfire	Relatively High
Flood	Relatively Low
Hail	Very Low
Strong Wind	Very Low
Heat Wave	Relatively Low
Winter Weather	Relatively High
Lightning	Relatively High
Ice Storm	Very Low
Drought	Relatively Moderate
Cold Wave	Very Low
Landslide	Relatively Moderate
Volcano	Very Low
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

701 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.9.

Sep 2, 1992	3 km SSE of Washington, Utah	M5.9	93 km	14 km
Apr 20, 1991	19 km SE of Minersville, Utah	M4.6	32 km	10 km
Jan 3, 2011	10 km NW of Circleville, Utah	M4.6	71 km	11 km
Jul 29, 2024	24 km S of Brian Head, Utah	M4.5	38 km	20 km
Jan 2, 1998	10 km ESE of Beaver, Utah	M4.4	60 km	12 km
Sep 19, 2022	45 km ESE of Littlefield, Arizona	M4.4	135 km	10 km
Jun 30, 2008	36 km SSE of Caliente, Nevada	M4.3	133 km	0 km
Jan 15, 2016	19 km WSW of Enterprise, Utah	M4.2	93 km	1 km
Jun 30, 2019	6 km E of Panaca, Nevada	M4.2	121 km	3 km
Jun 29, 1992	12 km WNW of Cedar City, Utah	M4.2	24 km	-3 km
Apr 12, 2012	16 km NNE of Bryce Canyon City, Utah	M4.2	73 km	15 km
Jun 29, 1992	12 km WNW of Cedar City, Utah	M4.2	26 km	7 km
Jan 28, 2014	37 km W of Veyo, Utah	M4.1	118 km	7 km
Oct 22, 1999	20 km SE of Minersville, Utah	M4.1	36 km	6 km
Nov 8, 2009	32 km S of Caliente, Nevada	M4.1	144 km	0 km
Jan 4, 2010	8 km S of Cedar City, Utah	M4.1	25 km	9 km
Jul 4, 2015	Utah	M4.1	41 km	3 km
Apr 14, 2019	28 km W of Kanosh, Utah	M4.1	109 km	1 km
Feb 20, 2019	8 km SW of Kanosh, Utah	M4.0	110 km	8 km
Sep 6, 1994	12 km SSW of Circleville, Utah	M4.0	62 km	6 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

16 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1.

Date	Rating	Distance	Path	Fatalities
Sep 22, 2016	EF1	44 km	0.8 mi	0
May 30, 1986	EF1	65 km	3.5 mi	0
Dec 27, 1983	EF1	93 km	0.4 mi	0
Mar 31, 1978	EF1	66 km	0.5 mi	0
Aug 12, 1976	EF1	95 km	0.1 mi	0
Aug 26, 2016	EF0	46 km	0.3 mi	0
Aug 24, 2011	EF0	83 km	1.1 mi	0
May 24, 2009	EF0	68 km	0.1 mi	0
Sep 4, 2001	EF0	67 km	5.0 mi	0
Sep 8, 2000	EF0	44 km	2.0 mi	0
Jul 23, 1998	EF0	52 km	0.1 mi	0
May 21, 1992	EF0	53 km	0.3 mi	0
Sep 7, 1991	EF0	64 km	0.1 mi	0
Mar 29, 1982	EF0	77 km	0.1 mi	0
Jun 16, 1967	EF0	44 km	0.1 mi	0
Jul 14, 1953	EF0	44 km	0.1 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Nearby Volcanoes

3 volcanoes within 200 km. Closest: Markagunt Plateau (34 km).

Name	Type	Elevation	Last Eruption	Distance
Markagunt Plateau	Volcanic field	2,840 m (9,318 ft)	1050	34 km
Black Rock Desert	Volcanic field	1,800 m (5,906 ft)	1290	135 km
Uinkaret Field	Volcanic field	1,555 m (5,102 ft)	1100	159 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: MILFORD FLAT (348,772 acres, 2007).

Year	Name	Acres Burned	Distance
2007	MILFORD FLAT	348,772	100 km
2002	SANFORD	81,854	68 km
2017	BRIANHEAD	74,276	21 km
2010	TWITCHELL CANYON	42,956	84 km
2004	HAWKINS	34,259	90 km
2020	ANTELOPE	20,624	93 km
2012	BABOON	20,453	37 km
2019	NECK	19,545	33 km
2006	COVE MOUNTAIN	17,746	89 km
2004	SQUARE COMPLEX	17,413	98 km
2006	KOLOB	17,036	66 km
1996	CUNNINGHAM	14,866	75 km
2021	FLATT	14,611	76 km
2005	BLUE SPRING	13,285	60 km
2007	GREENVILLE	13,043	43 km
2009	MILL FLAT	12,708	53 km
2005	SUNRISE COMPLEX (SUNRISE)	12,292	97 km
2020	TURKEY FARM ROAD	11,945	85 km
2018	WEST VALLEY	11,914	57 km
1996	HONEY BOY	11,113	60 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	20°F (-6°C)	1.3 in	Coldest
February	28°F (-2°C)	1.5 in
March	33°F (1°C)	1.7 in
April	39°F (4°C)	1.3 in
May	48°F (9°C)	1.1 in
June	58°F (14°C)	0.7 in	Driest
July	57°F (14°C)	1.5 in
August	64°F (18°C)	2.0 in	Warmest, Wettest
September	56°F (14°C)	1.4 in
October	46°F (8°C)	1.3 in
November	34°F (1°C)	1.4 in
December	27°F (-3°C)	1.3 in

Summit has a seasonal temperature swing of 44°F / from 20°F in January to 64°F in August. Total annual precipitation is 16.4 inches, with August being the wettest month (2.0") and June the driest (0.7").

View full profile of Summit, UT →