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Weather & Climate in Hammett, ID

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

Hammett experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 34°F in January while summers reach 79°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 10.6 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 2,535 feet.

Temperature

34°F Jan (1°C) 79°F Jul (26°C)
Annual Average54.6°F
1% above US avg
January Average34°F (1°C)
July Average79°F (26°C)
Sunny Days302 days/yr

Geography

Elevation2,535 ft (773 m)
Area1.2 sq mi (3.1 km²)
Population Density219/sq mi
Coordinates42.9441°N, 115.4655°W
TimezoneAmerica/Boise
CountyElmore County County
Nearest AirportBoise Air Trml/Gowen Field (BOI)
57 miles away

Precipitation & Snow

Annual Rainfall 10.6"
72% below US avg
Wettest Month (Jan) 1.46"
Driest Month (Jul) 0.28"

Air Quality

AQI Median33.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score52.0 / 100
Social Vulnerability12.2 / 100
Community Resilience8.1 / 100

Hazard Breakdown

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

Earthquake History

194 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.1.

Jul 10, 2020 18 km SW of Stanley, Idaho M4.1 131 km 10 km
Jan 1, 2021 15 km SSW of Stanley, Idaho M3.9 132 km 3 km
Jul 10, 2020 14 km SW of Stanley, Idaho M3.9 135 km 14 km
May 31, 2020 16 km SW of Stanley, Idaho M3.9 135 km 10 km
Jun 27, 2020 17 km SW of Stanley, Idaho M3.8 134 km 10 km
May 8, 2020 12 km WSW of Stanley, Idaho M3.7 142 km 10 km
May 2, 2020 8 km WNW of Stanley, Idaho M3.7 150 km 10 km
Apr 8, 2020 15 km SW of Stanley, Idaho M3.7 135 km 10 km
Jul 1, 2020 15 km SW of Stanley, Idaho M3.6 135 km 10 km
Apr 1, 2020 20 km WNW of Stanley, Idaho M3.6 150 km 10 km
Apr 22, 2020 14 km W of Stanley, Idaho M3.6 147 km 10 km
Apr 25, 2021 1 km WSW of Stanley, Idaho M3.5 147 km 3 km
Nov 4, 2002 37 km NE of Mountain Home, Idaho M3.5 52 km 5 km
May 21, 2020 12 km WNW of Stanley, Idaho M3.5 149 km 10 km
Jun 22, 2020 11 km SW of Stanley, Idaho M3.5 138 km 10 km
Jul 27, 2020 southern Idaho M3.4 137 km 10 km
Jun 27, 2020 15 km SW of Stanley, Idaho M3.4 136 km 10 km
Apr 3, 2020 11 km W of Stanley, Idaho M3.4 145 km 10 km
Sep 4, 2022 19 km W of Stanley, Idaho M3.4 141 km 10 km
Sep 4, 2022 southern Idaho M3.4 150 km 10 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

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

Date Rating Distance Path Fatalities
Jun 9, 1990 EF2 84 km 0.2 mi 0
Jun 10, 1990 EF1 56 km 0.2 mi 0
Apr 20, 1988 EF1 85 km 1.0 mi 0
Apr 20, 1988 EF1 57 km 1.0 mi 0
Aug 10, 1986 EF1 15 km 2.0 mi 0
Jun 24, 1986 EF1 65 km 0.5 mi 0
Sep 8, 1985 EF1 97 km 0.2 mi 0
May 2, 1985 EF1 72 km 0.1 mi 0
Mar 21, 1984 EF1 95 km 0.1 mi 0
Jul 5, 1961 EF1 47 km 5.1 mi 0
Jun 2, 1961 EF1 42 km 0.1 mi 0
Jun 3, 1956 EF1 54 km 0.1 mi 0
Jul 25, 2024 EF0 14 km 0.6 mi 0
May 27, 2023 EF0 53 km 5.0 mi 0
May 27, 2019 EF0 20 km 0.5 mi 0
Jun 30, 2016 EF0 87 km 1.5 mi 0
May 26, 2013 EF0 43 km 3.9 mi 0
May 8, 2013 EF0 88 km 1.0 mi 0
Mar 16, 2011 EF0 77 km 7.4 mi 0
Oct 4, 2006 EF0 98 km 0.2 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Nearby Volcanoes

4 volcanoes within 200 km. Closest: Black Butte Crater Lava Field (94 km).

Name Type Elevation Last Eruption Distance
Black Butte Crater Lava Field Shield 1,478 m (4,849 ft) -8400 94 km
Jordan Craters Volcanic field 1,473 m (4,833 ft) -1250 164 km
Craters of the Moon Pyroclastic cone(s) 2,005 m (6,578 ft) -130 168 km
Wapi Lava Field Shield 1,604 m (5,262 ft) -300 183 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 88 km
2010 LONG BUTTE 302,546 38 km
1992 FOOTHILLS 228,631 67 km
2005 CLOVER 199,023 40 km
2012 KINYON ROAD 171,409 45 km
2013 PONY COMPLEX 148,188 51 km
2012 TRINITY RIDGE 141,807 86 km
2013 ELK COMPLEX 129,565 59 km
2018 BRUNEAU 87,679 91 km
1995 TUANA COMPLEX 80,638 57 km
1990 THORN CREEK 70,365 82 km
2019 POT HOLE 67,826 37 km
1987 BROWNS CRK 66,024 15 km
2011 BIG HILL 65,416 53 km
1985 CROWS NEST 62,780 44 km
2006 SAILOR CAP 62,699 43 km
1986 BLUE BUTTE 62,445 34 km
2012 JACKS 47,219 66 km
1984 BIG DRAW 2 45,805 23 km
2007 RED BRIDGE 44,096 93 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 34°F (1°C) 1.5 in Wettest
February 36°F (2°C) 0.9 in
March 43°F (6°C) 0.9 in
April 50°F (10°C) 0.6 in
May 58°F (15°C) 0.8 in
June 67°F (19°C) 0.8 in
July 79°F (26°C) 0.3 in Warmest, Driest
August 74°F (23°C) 0.3 in
September 64°F (18°C) 0.5 in
October 53°F (11°C) 0.7 in
November 40°F (4°C) 1.4 in
December 31°F (-1°C) 1.3 in Coldest

Hammett has a seasonal temperature swing of 48°F / from 31°F in December to 79°F in July. Total annual precipitation is 10.0 inches, with January being the wettest month (1.5") and July the driest (0.3").

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