Weather & Climate in Farmington, UT

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

Farmington experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 29°F in January while summers reach 77°F in July. The area gets 308 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 27.6 inches (drier than the 38-inch national average). The area receives 118.9 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 4,245 feet.

Temperature

29°F Jan (-1°C) 77°F Jul (25°C)

Annual Average	51.2°F
	5% below US avg
January Average	29°F (-1°C)
July Average	77°F (25°C)
Sunny Days	308 days/yr

Geography

Elevation	4,245 ft (1,294 m)
Area	10.0 sq mi (25.8 km²)
Population Density	2,506/sq mi
Coordinates	40.9847°N, 111.9063°W
Timezone	America/Denver
County	Salt Lake County County
Nearest Airport	Salt Lake City International (SLC) 14 miles away

Precipitation & Snow

Annual Rainfall 27.6"

27% below US avg

Snowfall 118.9"

Wettest Month (May) 2.17"

Driest Month (Jul) 0.79"

Air Quality

AQI Median	41.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively High
Risk Score	98.6 / 100
Social Vulnerability	10.6 / 100
Community Resilience	66.4 / 100

Hazard Breakdown

Tornado	Relatively Moderate
Earthquake	Relatively High
Wildfire	Relatively High
Flood	Relatively Moderate
Hail	Relatively Low
Strong Wind	Relatively Moderate
Heat Wave	Relatively Moderate
Winter Weather	Very High
Lightning	Relatively High
Ice Storm	Very Low
Drought	Relatively Low
Cold Wave	Relatively Low
Landslide	Relatively Low
Coastal Flood	No Rating
Volcano	Very Low
Avalanche	Very High

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

Earthquake History

359 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.7.

Mar 18, 2020	5 km NNE of Magna, Utah	M5.7	30 km	12 km
Apr 15, 2010	9 km NE of Randolph, Utah	M4.9	106 km	10 km
Nov 4, 1992	67 km ENE of Montello, Nevada	M4.7	143 km	9 km
Mar 18, 2020	6 km NNE of Magna, Utah	M4.6	28 km	9 km
Mar 18, 2020	5 km NE of Magna, Utah	M4.6	29 km	11 km
May 5, 2024	16 km SW of Thatcher, Utah	M4.4	79 km	7 km
Apr 16, 2020	4 km NE of Magna, Utah	M4.2	31 km	10 km
Mar 18, 2020	1 km NNW of Magna, Utah	M4.2	34 km	9 km
Apr 15, 2020	4 km NE of Magna, Utah	M4.2	31 km	9 km
Mar 16, 1992	6 km S of Herriman, Utah	M4.2	60 km	12 km
May 25, 2016	15 km NNE of Tabiona, Utah	M4.0	119 km	16 km
Mar 18, 2020	4 km NNE of Magna, Utah	M4.0	30 km	7 km
Jun 3, 2009	5 km WNW of Riverside, Utah	M4.0	95 km	9 km
Mar 23, 2020	8 km NNE of Magna, Utah	M3.9	26 km	10 km
Mar 18, 2020	4 km NNE of Magna, Utah	M3.9	30 km	9 km
May 1, 2025	4 km WNW of Independence, Utah	M3.9	90 km	14 km
May 4, 2024	16 km SW of Thatcher, Utah	M3.9	79 km	6 km
Sep 24, 2019	5 km ENE of Howell, Utah	M3.9	101 km	7 km
Mar 18, 2020	6 km NE of Magna, Utah	M3.9	28 km	10 km
Jun 28, 1990	11 km NNE of Howell, Utah	M3.8	109 km	6 km

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

Tornado History

52 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 1 fatality, 96 injuries.

Date	Rating	Distance	Path	Fatalities
Aug 11, 1999	EF2	29 km	4.3 mi	1
Aug 14, 1968	EF2	33 km	1.5 mi	0
Feb 9, 1965	EF2	34 km	0.1 mi	0
Jun 3, 1963	EF2	12 km	2.0 mi	0
Sep 2, 2021	EF1	14 km	2.1 mi	0
Sep 22, 2016	EF1	22 km	2.9 mi	0
Aug 20, 1998	EF1	44 km	0.1 mi	0
May 29, 1996	EF1	36 km	1.3 mi	0
Jun 2, 1993	EF1	17 km	1.0 mi	0
May 3, 1993	EF1	52 km	0.1 mi	0
Sep 23, 1992	EF1	17 km	2.0 mi	0
Jul 25, 1991	EF1	54 km	10.0 mi	0
Jul 8, 1989	EF1	43 km	0.2 mi	0
Mar 2, 1989	EF1	36 km	0.2 mi	0
Jan 10, 1989	EF1	45 km	0.2 mi	0
May 6, 1981	EF1	99 km	0.5 mi	0
Dec 2, 1970	EF1	71 km	1.0 mi	0
Aug 14, 1968	EF1	24 km	0.1 mi	0
Apr 17, 1966	EF1	97 km	0.1 mi	0
Jul 9, 1965	EF1	74 km	0.4 mi	0

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

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 3.6 m (12 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1909	UTAH	Earthquake	3.6 m	—	112 km

Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: DALLAS CANYON (43,386 acres, 2012).

Year	Name	Acres Burned	Distance
2012	DALLAS CANYON	43,386	96 km
2009	BIG POLE	41,579	76 km
2000	SALT LAKE DESERT COMPLEX (ARAGONITE)	39,825	94 km
2001	UNNAMED	38,647	79 km
1995	REDLAM	35,405	90 km
1995	PUDDLE VALLEY	31,249	85 km
2013	PATCH SPRINGS	29,562	89 km
2007	MONARCH	25,046	79 km
2017	CEDAR MOUNTAIN	21,388	94 km
2005	SALLY	19,726	84 km
1996	SILVER HILL	17,137	75 km
2007	KIMBELL	16,949	67 km
2000	CASTLEROCK	16,718	53 km
1996	GOLDEN SPIKE	16,186	83 km
2011	LAKESIDE	16,165	76 km
2016	WEST ANTELOPE	15,483	27 km
2020	TABBY CANYON	14,330	53 km
2002	GARDEN VALLEY COMPLEX (EAST FORK)	14,245	99 km
2020	KNOLLS	12,948	83 km
1994	DRY CANYON 2	10,927	91 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	29°F (-1°C)	1.6 in	Coldest
February	33°F (0°C)	1.5 in
March	41°F (5°C)	1.9 in
April	48°F (9°C)	2.1 in
May	57°F (14°C)	2.2 in	Wettest
June	67°F (19°C)	1.0 in
July	77°F (25°C)	0.8 in	Warmest, Driest
August	74°F (23°C)	0.9 in
September	64°F (18°C)	1.5 in
October	52°F (11°C)	1.9 in
November	39°F (4°C)	1.7 in
December	30°F (-1°C)	1.5 in

Farmington has a seasonal temperature swing of 47°F / from 29°F in January to 77°F in July. Total annual precipitation is 18.6 inches, with May being the wettest month (2.2") and July the driest (0.8").

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