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Weather & Climate in Franklin, ID

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

Franklin experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 24°F in January while summers reach 71°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 17.3 inches (drier than the 38-inch national average). The area receives 52.4 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 22 / among the cleanest air in the country. 85% of days have good air quality. The city sits at an elevation of 4,501 feet.

Temperature

24°F Jan (-5°C) 71°F Jul (22°C)
Annual Average47.0°F
13% below US avg
January Average24°F (-5°C)
July Average71°F (22°C)
Sunny Days302 days/yr

Geography

Elevation4,501 ft (1,372 m)
Area1.3 sq mi (3.3 km²)
Population Density677/sq mi
Coordinates42.0095°N, 111.8022°W
TimezoneAmerica/Boise
CountyFranklin County County
Nearest AirportBrigham City Regional (BMC)
34 miles away

Precipitation & Snow

Annual Rainfall 17.3"
54% below US avg
Snowfall 52.4"
Wettest Month (May) 2.01"
Driest Month (Jul) 1.02"

Air Quality

AQI Median22.0
RatingGood
Good Days %84.9%
Unhealthy Days0

Natural Hazard Risk

Overall RiskVery Low
Risk Score7.6 / 100
Social Vulnerability10.6 / 100
Community Resilience22.9 / 100

Hazard Breakdown

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

Earthquake History

1,332 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.8.

Feb 3, 1994 4 km SSE of Auburn, Wyoming M5.8 108 km 8 km
Mar 18, 2020 5 km NNE of Magna, Utah M5.7 142 km 12 km
Sep 2, 2017 12 km E of Soda Springs, Idaho M5.3 77 km 10 km
Apr 21, 2001 29 km WSW of Freedom, Idaho M5.3 107 km 1 km
Sep 10, 2017 9 km NNW of Georgetown, Idaho M5.0 69 km 10 km
Apr 15, 2010 9 km NE of Randolph, Utah M4.9 67 km 10 km
Feb 11, 1994 3 km SSE of Auburn, Wyoming M4.8 107 km 5 km
Sep 10, 2017 12 km ESE of Soda Springs, Idaho M4.7 72 km 5 km
Sep 3, 2017 15 km ESE of Soda Springs, Idaho M4.7 74 km 10 km
Sep 3, 2017 10 km E of Soda Springs, Idaho M4.7 75 km 8 km
Feb 4, 1994 4 km WNW of Fairview, Wyoming M4.7 101 km 5 km
Sep 11, 2017 9 km NW of Georgetown, Idaho M4.7 67 km 8 km
Nov 4, 1992 67 km ENE of Montello, Nevada M4.7 148 km 9 km
Sep 6, 2017 11 km NNW of Georgetown, Idaho M4.6 69 km 10 km
Mar 18, 2020 6 km NNE of Magna, Utah M4.6 141 km 9 km
Mar 18, 2020 5 km NE of Magna, Utah M4.6 142 km 11 km
Feb 7, 1994 4 km SW of Fairview, Wyoming M4.5 97 km 5 km
Sep 4, 2017 13 km ESE of Soda Springs, Idaho M4.5 74 km 6 km
Feb 10, 1994 3 km WSW of Auburn, Wyoming M4.4 106 km 5 km
Nov 10, 1992 32 km WNW of Freedom, Idaho M4.4 124 km 10 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

36 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 16 injuries.

Date Rating Distance Path Fatalities
Aug 14, 1968 EF2 88 km 1.5 mi 0
Sep 22, 2016 EF1 96 km 2.9 mi 0
Aug 20, 1998 EF1 92 km 0.1 mi 0
May 29, 1996 EF1 80 km 1.3 mi 0
Jun 11, 1993 EF1 86 km 10.0 mi 0
Sep 17, 1989 EF1 13 km 0.2 mi 0
May 29, 1987 EF1 5 km 0.2 mi 0
May 21, 1986 EF1 46 km 0.5 mi 0
May 21, 1986 EF1 45 km 5.0 mi 0
Aug 18, 1983 EF1 84 km 2.5 mi 0
Jun 30, 1982 EF1 12 km 1.2 mi 0
May 6, 1981 EF1 23 km 0.5 mi 0
Jun 23, 1965 EF1 78 km 0.6 mi 0
May 25, 1954 EF1 45 km 0.5 mi 0
Jun 23, 2023 EF0 71 km 0.2 mi 0
May 28, 2018 EF0 76 km 0.1 mi 0
Jul 31, 2016 EF0 78 km 1.7 mi 0
Jul 7, 2013 EF0 47 km 1.0 mi 0
May 3, 2009 EF0 70 km 1.0 mi 0
Sep 5, 2007 EF0 88 km 7.5 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 — 78 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

2 volcanoes within 200 km. Closest: Wapi Lava Field (151 km).

Name Type Elevation Last Eruption Distance
Wapi Lava Field Shield 1,604 m (5,262 ft) -300 151 km
Hell's Half Acre Shield 1,631 m (5,351 ft) -3250 174 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: STONE 2 (50,677 acres, 2006).

Year Name Acres Burned Distance
2006 STONE 2 50,677 81 km
2001 UNNAMED 38,647 81 km
1994 ELEVATOR 31,854 47 km
2013 STATE 31,011 45 km
2016 BROAD MOUTH 21,009 44 km
1996 GOLDEN SPIKE 16,186 80 km
2007 CLEVELAND 16,172 33 km
1999 BRIDGER BA 15,227 82 km
2018 GORING 14,538 49 km
2018 NORTH EDEN 14,398 61 km
2007 RED CANYON RX BURN-H 13,464 92 km
2007 COW CANYON 13,447 90 km
1992 MEADOW DIVIDE 12,968 86 km
2000 TAYLOR 12,633 64 km
1988 METCALF 11,946 59 km
2000 MOONSHINE 11,489 98 km
1994 DRY CANYON 2 10,927 59 km
2005 FORT HALL COMPLEX 10,720 100 km
2007 MITCHELL 10,466 84 km
2006 BURNT 9,103 99 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 24°F (-5°C) 1.3 in
February 25°F (-4°C) 1.2 in
March 34°F (1°C) 1.5 in
April 42°F (6°C) 1.5 in
May 51°F (10°C) 2.0 in Wettest
June 60°F (15°C) 1.3 in
July 71°F (22°C) 1.0 in Warmest, Driest
August 67°F (19°C) 1.0 in
September 57°F (14°C) 1.3 in
October 46°F (8°C) 1.5 in
November 33°F (0°C) 1.3 in
December 22°F (-6°C) 1.2 in Coldest

Franklin has a seasonal temperature swing of 50°F / from 22°F in December to 71°F in July. Total annual precipitation is 16.3 inches, with May being the wettest month (2.0") and July the driest (1.0").

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