Weather & Climate in Fillmore, UT

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

Fillmore experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 30°F in January while summers reach 74°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 15.0 inches (drier than the 38-inch national average). The area receives 62.0 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 5,071 feet.

Temperature

30°F Jan (-1°C) 74°F Jul (24°C)

Annual Average	51.3°F
	5% below US avg
January Average	30°F (-1°C)
July Average	74°F (24°C)
Sunny Days	330 days/yr

Geography

Elevation	5,071 ft (1,546 m)
Area	6.1 sq mi (15.7 km²)
Population Density	366/sq mi
Coordinates	38.9642°N, 112.3386°W
Timezone	America/Denver
County	Piute County County
Nearest Airport	Carbon County Regional/Buck Davis Field (PUC) 96 miles away

Precipitation & Snow

Annual Rainfall 15.0"

60% below US avg

Snowfall 62.0"

Wettest Month (Mar) 1.46"

Driest Month (Jun) 0.59"

Air Quality

AQI Median	41.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	0.9 / 100
Social Vulnerability	31.0 / 100
Community Resilience	12.1 / 100

Hazard Breakdown

Tornado	Very Low
Earthquake	Very Low
Wildfire	Very Low
Flood	Very 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	No Rating
Landslide	Relatively Moderate
Volcano	Very Low
Avalanche	Very Low

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

Earthquake History

818 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	107 km	10 km
Jan 3, 2011	10 km NW of Circleville, Utah	M4.6	80 km	11 km
Jan 2, 1998	10 km ESE of Beaver, Utah	M4.4	82 km	12 km
Jun 24, 1992	30 km WSW of Emery, Utah	M4.3	71 km	5 km
Apr 17, 2003	6 km SSW of Levan, Utah	M4.2	72 km	1 km
Apr 12, 2012	16 km NNE of Bryce Canyon City, Utah	M4.2	129 km	15 km
Jul 19, 2001	31 km NNE of Fremont, Utah	M4.2	74 km	7 km
Jun 29, 2014	6 km SE of Spring City, Utah	M4.2	94 km	9 km
Oct 22, 1999	20 km SE of Minersville, Utah	M4.1	103 km	6 km
Jul 4, 2015	Utah	M4.1	125 km	3 km
Apr 14, 2019	28 km W of Kanosh, Utah	M4.1	43 km	1 km
Feb 20, 2019	8 km SW of Kanosh, Utah	M4.0	29 km	8 km
Sep 6, 1994	12 km SSW of Circleville, Utah	M4.0	101 km	6 km
Feb 23, 2001	12 km SW of Kanosh, Utah	M4.0	33 km	2 km
Jan 30, 1998	19 km NNW of Panguitch, Utah	M4.0	110 km	7 km
Jan 6, 1996	15 km SE of Castle Dale, Utah	M3.9	128 km	6 km
Aug 18, 2007	35 km WSW of Minersville, Utah	M3.9	130 km	7 km
Jan 17, 2020	10 km NNE of Minersville, Utah	M3.9	87 km	12 km
Jun 18, 1998	18 km NNW of Panguitch, Utah	M3.9	111 km	6 km
Apr 10, 1998	3 km ENE of Milford, Utah	M3.9	83 km	2 km

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

Tornado History

19 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 1 injury.

Date	Rating	Distance	Path	Fatalities
Sep 8, 2002	EF2	70 km	2.7 mi	0
Nov 2, 1967	EF2	94 km	0.1 mi	0
Jun 16, 1955	EF2	53 km	2.7 mi	0
Apr 19, 1970	EF1	38 km	1.5 mi	0
Aug 28, 1964	EF1	49 km	0.1 mi	0
Aug 7, 1957	EF1	41 km	1.5 mi	0
May 24, 2009	EF0	92 km	0.1 mi	0
Sep 12, 2002	EF0	80 km	0.1 mi	0
Sep 8, 2002	EF0	48 km	0.2 mi	0
Sep 4, 2001	EF0	86 km	5.0 mi	0
May 28, 1996	EF0	36 km	0.2 mi	0
May 21, 1992	EF0	88 km	0.3 mi	0
Sep 7, 1991	EF0	78 km	0.1 mi	0
Jun 7, 1989	EF0	32 km	0.2 mi	0
Aug 19, 1984	EF0	71 km	0.1 mi	0
Aug 15, 1984	EF0	66 km	0.1 mi	0
May 3, 1982	EF0	63 km	0.1 mi	0
Mar 29, 1982	EF0	70 km	0.1 mi	0
Jun 16, 1955	EF0	53 km	0.1 mi	0

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

Nearby Volcanoes

2 volcanoes within 200 km. Closest: Black Rock Desert (14 km).

Name	Type	Elevation	Last Eruption	Distance
Black Rock Desert	Volcanic field	1,800 m (5,906 ft)	1290	14 km
Markagunt Plateau	Volcanic field	2,840 m (9,318 ft)	1050	157 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	46 km
1996	LEAMINGTON COMPLEX (WASH)	161,203	89 km
2012	CLAY SPRINGS	107,391	52 km
2020	CANAL	74,897	65 km
1999	RAILROAD	64,598	85 km
1996	SORENSON COMPLEX (SOUTH TWIN PEAKS)	46,576	39 km
2010	TWITCHELL CANYON	42,956	56 km
1986	TWINPEAKS	34,633	29 km
2006	DOG VALLEY	28,992	36 km
1996	LEAMINGTON COMPLEX (LEAMINGTON)	28,159	60 km
2020	ANTELOPE	20,624	81 km
1996	LEAMINGTON COMPLEX (EAST SAGE)	18,360	80 km
2012	GREASE	16,155	51 km
1996	ADELAIDE COMPLEX (ADALAIDE)	15,638	23 km
2005	WEST GILSON	15,483	76 km
2000	OLDROYD COMPLEX (BROAD)	15,208	75 km
1996	CUNNINGHAM	14,866	64 km
2006	DEVILS DEN	13,680	50 km
2007	GREENVILLE	13,043	97 km
1995	LAVA RIDGE	12,391	41 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	30°F (-1°C)	1.0 in
February	34°F (1°C)	0.9 in
March	42°F (6°C)	1.5 in	Wettest
April	49°F (9°C)	1.4 in
May	58°F (14°C)	1.3 in
June	68°F (20°C)	0.6 in	Driest
July	74°F (24°C)	0.8 in	Warmest
August	73°F (23°C)	0.8 in
September	64°F (18°C)	0.9 in
October	52°F (11°C)	1.2 in
November	39°F (4°C)	1.1 in
December	29°F (-2°C)	0.9 in	Coldest

Fillmore has a seasonal temperature swing of 46°F / from 29°F in December to 74°F in July. Total annual precipitation is 12.5 inches, with March being the wettest month (1.5") and June the driest (0.6").

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