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Weather & Climate in Heyburn, ID

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

Heyburn experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 29°F in January while summers reach 72°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 10.3 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 4,150 feet.

Temperature

29°F Jan (-2°C) 72°F Jul (22°C)
Annual Average49.0°F
9% below US avg
January Average29°F (-2°C)
July Average72°F (22°C)
Sunny Days302 days/yr

Geography

Elevation4,150 ft (1,265 m)
Area2.7 sq mi (6.9 km²)
Population Density1,409/sq mi
Coordinates42.5600°N, 113.7621°W
TimezoneAmerica/Boise
CountyCassia County County
Nearest AirportJoslin Field/Magic Valley Regional (TWF)
37 miles away

Precipitation & Snow

Annual Rainfall 10.3"
73% below US avg
Wettest Month (May) 1.14"
Driest Month (Jul) 0.39"

Air Quality

AQI Median33.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score43.6 / 100
Social Vulnerability22.4 / 100
Community Resilience20.8 / 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 Low
Winter Weather Relatively Moderate
Lightning Relatively Moderate
Ice Storm Very Low
Drought Very Low
Cold Wave Relatively Low
Landslide Very Low
Volcano Very Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

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

Nov 4, 1992 67 km ENE of Montello, Nevada M4.7 118 km 9 km
Sep 24, 2019 5 km ENE of Howell, Utah M3.9 140 km 7 km
Jun 28, 1990 11 km NNE of Howell, Utah M3.8 134 km 6 km
Aug 30, 2000 9 km ENE of Snowville, Utah M3.6 114 km 7 km
Jul 3, 1993 7 km SSW of Malad City, Idaho M3.6 130 km 9 km
Nov 4, 1992 49 km SW of Snowville, Utah M3.6 120 km 13 km
Apr 24, 1998 10 km NE of Howell, Utah M3.5 140 km 11 km
Jan 24, 1990 14 km WSW of Howell, Utah M3.5 129 km 6 km
May 6, 2013 2 km NNE of Lava Hot Springs, Idaho M3.5 145 km 5 km
Apr 6, 2021 47 km SW of Howell, Utah M3.5 138 km 11 km
Jul 5, 1996 7 km WNW of Thatcher, Utah M3.4 148 km 4 km
Sep 23, 1993 7 km SSW of Malad City, Idaho M3.2 130 km 6 km
May 29, 2013 11 km ENE of Howell, Utah M3.1 143 km 1 km
Dec 17, 1992 30 km WSW of Mackay, Idaho M3.1 140 km 5 km
Jun 15, 2008 15 km WSW of Howell, Utah M3.1 132 km 9 km
May 3, 2020 17 km W of Portage, Utah M3.1 126 km 7 km
Jan 24, 2020 7 km E of Howell, UT M3.1 144 km 7 km
May 6, 1994 5 km E of Howell, Utah M3.1 143 km 2 km
Jul 2, 1990 11 km NNE of Howell, Utah M3.1 134 km 5 km
Apr 19, 1990 7 km W of Thatcher, Utah M3.1 148 km 8 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

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

Date Rating Distance Path Fatalities
May 18, 1991 EF2 10 km 0.2 mi 0
Aug 17, 1990 EF2 80 km 4.0 mi 0
Jun 9, 1990 EF2 62 km 0.2 mi 0
Sep 11, 1968 EF2 19 km 0.5 mi 0
Jul 20, 1999 EF1 97 km 2.5 mi 0
Jun 10, 1990 EF1 90 km 0.2 mi 0
Apr 20, 1988 EF1 95 km 1.0 mi 0
Apr 20, 1988 EF1 61 km 1.0 mi 0
Jul 21, 1987 EF1 71 km 0.2 mi 0
Aug 24, 1986 EF1 65 km 0.5 mi 0
Jun 24, 1986 EF1 87 km 0.5 mi 0
Sep 8, 1985 EF1 51 km 0.2 mi 0
May 2, 1985 EF1 78 km 0.1 mi 0
Jul 17, 1981 EF1 72 km 0.8 mi 0
Jun 7, 1972 EF1 19 km 0.5 mi 0
Jun 5, 1957 EF1 45 km 0.1 mi 0
Jun 3, 1956 EF1 93 km 0.1 mi 0
May 26, 2023 EF0 56 km 0.2 mi 0
Aug 2, 2019 EF0 18 km 1.0 mi 0
May 7, 2019 EF0 55 km 1.5 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 — 122 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

4 volcanoes within 200 km. Closest: Wapi Lava Field (57 km).

Name Type Elevation Last Eruption Distance
Wapi Lava Field Shield 1,604 m (5,262 ft) -300 57 km
Black Butte Crater Lava Field Shield 1,478 m (4,849 ft) -8400 84 km
Craters of the Moon Pyroclastic cone(s) 2,005 m (6,578 ft) -130 98 km
Hell's Half Acre Shield 1,631 m (5,351 ft) -3250 149 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: COXS WELL (219,424 acres, 1996).

Year Name Acres Burned Distance
1996 COXS WELL 219,424 88 km
2006 CRYSTAL 218,581 78 km
1996 RICHFIELDS 178,385 56 km
2007 WINECUP COMPLEX (WEST FORK) 159,805 94 km
1992 BLACK RIDGE 147,833 59 km
1999 MULE BUTTE 138,102 67 km
2012 FLAT TOP 2 102,340 51 km
2020 BADGER 86,836 49 km
2012 CAVE CANYON 84,780 41 km
1990 THORN CREEK 70,365 93 km
2007 BLACK PINE 2 69,897 60 km
2007 HIGHWAY 93 COMPLEX (WEST BASIN) 63,143 94 km
2000 FLATTOP 56,792 73 km
2000 WEST BASIN 56,396 78 km
2017 DRY GULCH 55,066 99 km
2017 POWERLINE 54,378 96 km
2006 STONE 2 50,677 94 km
2017 MAMMOTH CAVE 50,391 75 km
2005 RUPERT 45,361 48 km
2007 RED BRIDGE 44,096 56 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 29°F (-2°C) 1.0 in
February 32°F (0°C) 0.7 in
March 39°F (4°C) 0.9 in
April 47°F (8°C) 0.9 in
May 55°F (13°C) 1.1 in Wettest
June 63°F (17°C) 0.9 in
July 72°F (22°C) 0.4 in Warmest, Driest
August 69°F (20°C) 0.5 in
September 59°F (15°C) 0.6 in
October 49°F (9°C) 0.6 in
November 36°F (2°C) 1.1 in
December 28°F (-2°C) 1.0 in Coldest

Heyburn has a seasonal temperature swing of 44°F / from 28°F in December to 72°F in July. Total annual precipitation is 9.8 inches, with May being the wettest month (1.1") and July the driest (0.4").

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