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Weather & Climate in Filer, ID

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

Filer experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 29°F in January while summers reach 74°F in July. The area gets 302 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 10.2 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 33. The city sits at an elevation of 3,784 feet.

Temperature

29°F Jan (-2°C) 74°F Jul (23°C)
Annual Average50.2°F
7% below US avg
January Average29°F (-2°C)
July Average74°F (23°C)
Sunny Days302 days/yr

Geography

Elevation3,784 ft (1,153 m)
Area1.1 sq mi (2.7 km²)
Population Density1,930/sq mi
Coordinates42.5651°N, 114.6061°W
TimezoneAmerica/Boise
CountyTwin Falls County County
Nearest AirportJoslin Field/Magic Valley Regional (TWF)
8 miles away

Precipitation & Snow

Annual Rainfall 10.2"
73% below US avg
Wettest Month (Jan) 1.18"
Driest Month (Jul) 0.28"

Air Quality

AQI Median33.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score47.0 / 100
Social Vulnerability24.9 / 100
Community Resilience47.1 / 100

Hazard Breakdown

Tornado Very Low
Earthquake Relatively Low
Wildfire Relatively Moderate
Flood Relatively Low
Hail Very Low
Strong Wind Relatively Low
Heat Wave Relatively Moderate
Winter Weather Relatively High
Lightning Relatively Low
Ice Storm Relatively Low
Drought Very Low
Cold Wave Relatively Low
Landslide Relatively Moderate
Volcano Very Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

43 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.7.

Nov 4, 1992 67 km ENE of Montello, Nevada M4.7 150 km 9 km
Jan 13, 1999 60 km NW of Wells, Nevada M3.8 131 km 5 km
Feb 29, 2008 20 km NE of Wells, Nevada M3.5 149 km 5 km
Nov 4, 2002 37 km NE of Mountain Home, Idaho M3.5 115 km 5 km
Feb 29, 2008 19 km NE of Wells, Nevada M3.3 147 km 0 km
Feb 23, 2008 20 km NNE of Wells, Nevada M3.3 145 km 8 km
Jul 23, 2000 64 km ESE of Owyhee, Nevada M3.3 122 km 0 km
Feb 24, 2008 16 km NE of Wells, Nevada M3.2 150 km 0 km
Feb 26, 2008 19 km NE of Wells, Nevada M3.2 148 km 0 km
Feb 28, 2008 17 km NE of Wells, Nevada M3.2 148 km 2 km
Feb 28, 2008 15 km NNE of Wells, Nevada M3.2 150 km 0 km
Feb 28, 2008 17 km NNE of Wells, Nevada M3.1 148 km 0 km
Feb 26, 2008 20 km NNE of Wells, Nevada M3.1 145 km 7 km
Feb 26, 2008 20 km NNE of Wells, Nevada M3.1 145 km 9 km
Dec 17, 1992 30 km WSW of Mackay, Idaho M3.1 148 km 5 km
Mar 18, 2008 16 km NNE of Wells, Nevada M3.0 148 km 4 km
Feb 26, 2008 24 km NE of Wells, Nevada M3.0 145 km 0 km
Jul 22, 2010 47 km NE of Owyhee, Nevada M3.0 97 km 0 km
Mar 8, 2008 26 km NE of Wells, Nevada M2.9 142 km 13 km
Feb 29, 2008 20 km NNE of Wells, Nevada M2.9 145 km 10 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

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

Date Rating Distance Path Fatalities
May 18, 1991 EF2 77 km 0.2 mi 0
Jun 9, 1990 EF2 21 km 0.2 mi 0
Sep 11, 1968 EF2 60 km 0.5 mi 0
Jun 10, 1990 EF1 29 km 0.2 mi 0
Apr 20, 1988 EF1 18 km 1.0 mi 0
Apr 20, 1988 EF1 48 km 1.0 mi 0
Jul 21, 1987 EF1 71 km 0.2 mi 0
Aug 10, 1986 EF1 71 km 2.0 mi 0
Jun 24, 1986 EF1 18 km 0.5 mi 0
Sep 8, 1985 EF1 19 km 0.2 mi 0
May 2, 1985 EF1 41 km 0.1 mi 0
Jun 7, 1972 EF1 76 km 0.5 mi 0
Jul 5, 1961 EF1 78 km 5.1 mi 0
Jun 2, 1961 EF1 99 km 0.1 mi 0
Jun 5, 1957 EF1 26 km 0.1 mi 0
Jun 3, 1956 EF1 41 km 0.1 mi 0
Jul 25, 2024 EF0 71 km 0.6 mi 0
Aug 2, 2019 EF0 87 km 1.0 mi 0
May 27, 2019 EF0 90 km 0.5 mi 0
May 7, 2019 EF0 20 km 1.5 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Nearby Volcanoes

3 volcanoes within 200 km. Closest: Black Butte Crater Lava Field (72 km).

Name Type Elevation Last Eruption Distance
Black Butte Crater Lava Field Shield 1,478 m (4,849 ft) -8400 72 km
Wapi Lava Field Shield 1,604 m (5,262 ft) -300 119 km
Craters of the Moon Pyroclastic cone(s) 2,005 m (6,578 ft) -130 131 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: MURPHY COMPLEX (567,409 acres, 2007).

Year Name Acres Burned Distance
2007 MURPHY COMPLEX 567,409 74 km
2010 LONG BUTTE 302,546 44 km
2005 CLOVER 199,023 51 km
1996 RICHFIELDS 178,385 76 km
2012 KINYON ROAD 171,409 47 km
2007 WINECUP COMPLEX (WEST FORK) 159,805 96 km
1992 BLACK RIDGE 147,833 87 km
2012 FLAT TOP 2 102,340 77 km
2018 BRUNEAU 87,679 97 km
2020 BADGER 86,836 51 km
2012 CAVE CANYON 84,780 50 km
1995 TUANA COMPLEX 80,638 69 km
1990 THORN CREEK 70,365 70 km
2019 POT HOLE 67,826 69 km
1987 BROWNS CRK 66,024 78 km
2011 BIG HILL 65,416 97 km
2007 HIGHWAY 93 COMPLEX (WEST BASIN) 63,143 74 km
1985 CROWS NEST 62,780 62 km
2006 SAILOR CAP 62,699 57 km
1986 BLUE BUTTE 62,445 57 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 29°F (-2°C) 1.2 in Wettest
February 33°F (1°C) 0.8 in
March 41°F (5°C) 1.1 in
April 48°F (9°C) 0.9 in
May 56°F (13°C) 1.1 in
June 64°F (18°C) 0.8 in
July 74°F (23°C) 0.3 in Warmest, Driest
August 69°F (21°C) 0.3 in
September 60°F (15°C) 0.6 in
October 50°F (10°C) 0.8 in
November 38°F (3°C) 1.2 in
December 29°F (-2°C) 1.0 in Coldest

Filer has a seasonal temperature swing of 45°F / from 29°F in December to 74°F in July. Total annual precipitation is 9.8 inches, with January being the wettest month (1.2") and July the driest (0.3").

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