Weather & Climate in Boulder, UT

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

Boulder experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 30°F in January while summers reach 72°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 11.9 inches (drier than the 38-inch national average). The area receives 51.6 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 7,048 feet.

Temperature

30°F Jan (-1°C) 72°F Jul (22°C)

Annual Average	50.3°F
	7% below US avg
January Average	30°F (-1°C)
July Average	72°F (22°C)
Sunny Days	330 days/yr

Geography

Elevation	7,048 ft (2,148 m)
Area	20.9 sq mi (54.2 km²)
Population Density	19/sq mi
Coordinates	37.9228°N, 111.4319°W
Timezone	America/Denver
County	Garfield County County
Nearest Airport	Cedar City Regional (CDC) 92 miles away

Precipitation & Snow

Annual Rainfall 11.9"

69% below US avg

Snowfall 51.6"

Wettest Month (Aug) 1.57"

Driest Month (Apr) 0.55"

Air Quality

AQI Median	41.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	37.6 / 100
Social Vulnerability	55.8 / 100
Community Resilience	47.3 / 100

Hazard Breakdown

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

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

Earthquake History

650 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.

Apr 20, 1991	19 km SE of Minersville, Utah	M4.6	120 km	10 km
Jan 3, 2011	10 km NW of Circleville, Utah	M4.6	88 km	11 km
Jul 29, 2024	24 km S of Brian Head, Utah	M4.5	135 km	20 km
Jan 2, 1998	10 km ESE of Beaver, Utah	M4.4	102 km	12 km
Jun 24, 1992	30 km WSW of Emery, Utah	M4.3	97 km	5 km
Apr 12, 2012	16 km NNE of Bryce Canyon City, Utah	M4.2	60 km	15 km
Jul 19, 2001	31 km NNE of Fremont, Utah	M4.2	91 km	7 km
Oct 22, 1999	20 km SE of Minersville, Utah	M4.1	117 km	6 km
Jan 4, 2010	8 km S of Cedar City, Utah	M4.1	147 km	9 km
Jul 4, 2015	Utah	M4.1	91 km	3 km
Apr 14, 2019	28 km W of Kanosh, Utah	M4.1	150 km	1 km
Feb 20, 2019	8 km SW of Kanosh, Utah	M4.0	130 km	8 km
Sep 6, 1994	12 km SSW of Circleville, Utah	M4.0	78 km	6 km
Jan 26, 1991	22 km SE of Escalante, Utah	M4.0	32 km	22 km
Feb 23, 2001	12 km SW of Kanosh, Utah	M4.0	131 km	2 km
Jan 30, 1998	19 km NNW of Panguitch, Utah	M4.0	95 km	7 km
Jan 6, 1996	15 km SE of Castle Dale, Utah	M3.9	143 km	6 km
Jun 18, 1998	18 km NNW of Panguitch, Utah	M3.9	95 km	6 km
Jan 17, 2020	10 km NNE of Minersville, Utah	M3.9	132 km	12 km
Apr 14, 2010	30 km ENE of Boulder Town, Utah	M3.9	31 km	13 km

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

Tornado History

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

Date	Rating	Distance	Path	Fatalities
Sep 22, 2016	EF1	88 km	0.8 mi	0
Apr 4, 1993	EF1	58 km	0.1 mi	0
Mar 31, 1978	EF1	67 km	0.5 mi	0
Aug 26, 2016	EF0	87 km	0.3 mi	0
Sep 12, 2002	EF0	80 km	0.2 mi	0
Sep 8, 2000	EF0	88 km	2.0 mi	0
Aug 19, 1984	EF0	70 km	0.1 mi	0
Jul 24, 1981	EF0	88 km	0.2 mi	0
May 31, 1969	EF0	65 km	0.1 mi	0
May 31, 1969	EF0	65 km	0.1 mi	0
May 31, 1969	EF0	65 km	0.1 mi	0
Jun 16, 1967	EF0	94 km	0.1 mi	0

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

Nearby Volcanoes

2 volcanoes within 200 km. Closest: Markagunt Plateau (115 km).

Name	Type	Elevation	Last Eruption	Distance
Markagunt Plateau	Volcanic field	2,840 m (9,318 ft)	1050	115 km
Black Rock Desert	Volcanic field	1,800 m (5,906 ft)	1290	149 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: SANFORD (81,854 acres, 2002).

Year	Name	Acres Burned	Distance
2002	SANFORD	81,854	65 km
2003	BULLDOG	31,578	62 km
2019	FALL RX 2019 LANGDON/BIG TABLE/COLLINS/SMITH CYN	7,851	78 km
2018	SOUTH MONROE RX	7,442	75 km
2023	THOMPSON RIDGE	6,815	91 km
1996	POLE CREEK	5,813	88 km
2018	WILLOW PATCH	4,592	95 km
2003	LONESOME BEAVER	4,551	61 km
2009	BRIDGE	4,493	81 km
2022	LEFT FORK	4,324	93 km
2023	OLD WOMAN SOUTH RX	3,847	97 km
2008	PUMA	3,258	88 km
2016	SAND LEDGES	3,242	91 km
2023	FY24/25 SIGNAL PEAK RX UNIT 6 7 AND 8	3,039	93 km
2019	LITTLE BEAR	2,666	85 km
2016	UNNAMED	2,491	84 km
2018	RIGGS	2,331	85 km
2015	UNNAMED	2,278	74 km
2008	CORN CREEK	2,223	37 km
2012	LOST LAKE	2,062	36 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	30°F (-1°C)	0.6 in
February	32°F (-0°C)	0.7 in
March	38°F (3°C)	0.9 in
April	45°F (7°C)	0.6 in	Driest
May	54°F (12°C)	0.8 in
June	64°F (18°C)	0.6 in
July	72°F (22°C)	1.2 in	Warmest
August	68°F (20°C)	1.6 in	Wettest
September	60°F (15°C)	1.1 in
October	49°F (9°C)	0.9 in
November	36°F (2°C)	0.8 in
December	29°F (-2°C)	0.6 in	Coldest

Boulder has a seasonal temperature swing of 44°F / from 29°F in December to 72°F in July. Total annual precipitation is 10.3 inches, with August being the wettest month (1.6") and April the driest (0.6").

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