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Weather & Climate in Gannett, ID

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

Gannett has a cool climate with an average annual temperature of 42°F (6°C). Winters average 19°F in January while summers reach 67°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 13.0 inches (drier than the 38-inch national average). The area receives 45.6 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 33. The city sits at an elevation of 4,903 feet.

Temperature

19°F Jan (-7°C) 67°F Jul (19°C)
Annual Average42.4°F
21% below US avg
January Average19°F (-7°C)
July Average67°F (19°C)
Sunny Days302 days/yr

Geography

Elevation4,903 ft (1,494 m)
Area2.6 sq mi (6.8 km²)
Population Density133/sq mi
Coordinates43.3521°N, 114.1677°W
TimezoneAmerica/Boise
CountyCamas County County
Nearest AirportJoslin Field/Magic Valley Regional (TWF)
62 miles away

Precipitation & Snow

Annual Rainfall 13.0"
66% below US avg
Snowfall 45.6"
Wettest Month (Dec) 2.05"
Driest Month (Jul) 0.59"

Air Quality

AQI Median33.0
RatingGood

Natural Hazard Risk

Overall RiskVery Low
Risk Score6.0 / 100
Social Vulnerability46.3 / 100
Community Resilience37.0 / 100

Hazard Breakdown

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

Earthquake History

1,403 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.5.

Mar 31, 2020 Stanley, Idaho M6.5 145 km 12 km
Jan 3, 2015 9 km E of Challis, Idaho M5.0 129 km 9 km
Apr 13, 2014 15 km NNW of Challis, Idaho M4.8 142 km 4 km
Apr 1, 2020 21 km WNW of Stanley, Idaho M4.8 135 km 10 km
Jun 7, 1994 18 km E of Challis, Idaho M4.8 128 km 5 km
May 4, 1992 20 km E of Challis, Idaho M4.6 130 km 10 km
Jun 25, 2020 27 km NW of Stanley, Idaho M4.6 142 km 8 km
Apr 1, 2020 23 km NW of Stanley, Idaho M4.4 136 km 7 km
Apr 14, 2014 13 km NW of Challis, Idaho M4.4 139 km 7 km
May 6, 1992 17 km E of Challis, Idaho M4.4 126 km 5 km
May 14, 2020 31 km NW of Stanley, Idaho M4.4 145 km 13 km
Dec 28, 1991 southern Idaho M4.4 134 km 5 km
May 21, 2020 26 km NW of Stanley, Idaho M4.4 140 km 6 km
Jan 28, 1995 33 km NNE of Stanley, Idaho M4.3 137 km 5 km
Mar 22, 1992 11 km NE of Challis, Idaho M4.3 137 km 5 km
Jun 8, 2025 24 km E of Clayton, Idaho M4.3 102 km 7 km
Feb 17, 1992 33 km NNE of Stanley, Idaho M4.3 136 km 5 km
Jun 9, 2020 11 km NW of Stanley, Idaho M4.2 125 km 10 km
Jun 14, 2020 10 km NW of Stanley, Idaho M4.2 125 km 8 km
Aug 13, 1998 3 km ESE of Challis, Idaho M4.2 127 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

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

Date Rating Distance Path Fatalities
May 18, 1991 EF2 91 km 0.2 mi 0
Jun 9, 1990 EF2 74 km 0.2 mi 0
Sep 11, 1968 EF2 76 km 0.5 mi 0
May 21, 1992 EF1 74 km 0.2 mi 0
Jun 10, 1990 EF1 84 km 0.2 mi 0
Apr 20, 1988 EF1 64 km 1.0 mi 0
Apr 20, 1988 EF1 77 km 1.0 mi 0
Jul 21, 1987 EF1 26 km 0.2 mi 0
Jul 18, 1987 EF1 53 km 1.0 mi 0
Aug 10, 1986 EF1 100 km 2.0 mi 0
Jun 24, 1986 EF1 99 km 0.5 mi 0
Sep 8, 1985 EF1 85 km 0.2 mi 0
May 2, 1985 EF1 58 km 0.1 mi 0
Jun 7, 1972 EF1 80 km 0.5 mi 0
Jul 5, 1961 EF1 70 km 5.1 mi 0
Jun 2, 1961 EF1 92 km 0.1 mi 0
Jun 5, 1957 EF1 95 km 0.1 mi 0
Jun 3, 1956 EF1 72 km 0.1 mi 0
Aug 2, 2019 EF0 96 km 1.0 mi 0
Jun 21, 2018 EF0 79 km 5.1 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 (24 km).

Name Type Elevation Last Eruption Distance
Black Butte Crater Lava Field Shield 1,478 m (4,849 ft) -8400 24 km
Craters of the Moon Pyroclastic cone(s) 2,005 m (6,578 ft) -130 55 km
Wapi Lava Field Shield 1,604 m (5,262 ft) -300 93 km
Hell's Half Acre Shield 1,631 m (5,351 ft) -3250 140 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: LONG BUTTE (302,546 acres, 2010).

Year Name Acres Burned Distance
2010 LONG BUTTE 302,546 99 km
1996 COXS WELL 219,424 89 km
2006 CRYSTAL 218,581 86 km
1996 RICHFIELDS 178,385 39 km
1992 BLACK RIDGE 147,833 41 km
1999 MULE BUTTE 138,102 80 km
2013 BEAVER CREEK 111,286 39 km
2012 FLAT TOP 2 102,340 45 km
1990 THORN CREEK 70,365 33 km
2018 SHARPS 63,895 22 km
2000 FLATTOP 56,792 97 km
2017 MAMMOTH CAVE 50,391 22 km
2007 CASTLE ROCK 48,430 42 km
2005 RUPERT 45,361 69 km
2007 RED BRIDGE 44,096 59 km
2005 VALLEY ROAD 40,801 93 km
2022 ROSS FORK 40,690 80 km
2016 LAIDLAW 40,551 47 km
2011 BLAIR 40,086 87 km
2008 SOUTH BARKER WFU 36,091 85 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 19°F (-7°C) 2.0 in Coldest
February 24°F (-5°C) 1.6 in
March 32°F (-0°C) 1.5 in
April 41°F (5°C) 1.0 in
May 49°F (10°C) 1.4 in
June 57°F (14°C) 1.2 in
July 67°F (19°C) 0.6 in Warmest, Driest
August 65°F (18°C) 0.7 in
September 56°F (13°C) 0.9 in
October 46°F (8°C) 0.8 in
November 32°F (-0°C) 1.7 in
December 21°F (-6°C) 2.1 in Wettest

Gannett has a seasonal temperature swing of 47°F / from 19°F in January to 67°F in July. Total annual precipitation is 15.4 inches, with December being the wettest month (2.1") and July the driest (0.6").

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