Weather & Climate in Idaho Falls, ID

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

Idaho Falls 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 12.1 inches (drier than the 38-inch national average). The area receives 14.7 inches of snow annually. Air quality is rated Good with a median AQI of 33. The city sits at an elevation of 4,718 feet.

Temperature

24°F Jan (-4°C) 71°F Jul (22°C)

Annual Average	47.2°F
	13% below US avg
January Average	24°F (-4°C)
July Average	71°F (22°C)
Sunny Days	302 days/yr

Geography

Elevation	4,718 ft (1,438 m)
Area	22.8 sq mi (59.1 km²)
Population Density	2,456/sq mi
Coordinates	43.4889°N, 112.0363°W
Timezone	America/Boise
County	Jefferson County County
Nearest Airport	Idaho Falls Regional (IDA) 2 miles away

Precipitation & Snow

Annual Rainfall 12.1"

68% below US avg

Snowfall 14.7"

Wettest Month (May) 1.50"

Driest Month (Jul) 0.75"

Air Quality

AQI Median	33.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	40.1 / 100
Social Vulnerability	10.6 / 100
Community Resilience	39.7 / 100

Hazard Breakdown

Tornado	Very Low
Earthquake	Relatively Low
Wildfire	Very Low
Flood	Relatively Low
Hail	Very Low
Strong Wind	Very Low
Heat Wave	Relatively Moderate
Winter Weather	Relatively Moderate
Lightning	Relatively Low
Ice Storm	Very Low
Drought	Very Low
Cold Wave	Relatively Moderate
Landslide	Very Low
Volcano	Very Low
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

1,488 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	118 km	8 km
Apr 21, 2001	29 km WSW of Freedom, Idaho	M5.3	81 km	1 km
Sep 2, 2017	12 km E of Soda Springs, Idaho	M5.3	105 km	10 km
Jan 7, 2004	20 km ESE of Kelly, Wyoming	M5.0	134 km	3 km
Sep 10, 2017	9 km NNW of Georgetown, Idaho	M5.0	115 km	10 km
Aug 5, 2010	19 km E of Kelly, Wyoming	M4.8	133 km	5 km
Feb 11, 1994	3 km SSE of Auburn, Wyoming	M4.8	117 km	5 km
Aug 27, 2016	4 km ENE of Bondurant, Wyoming	M4.8	139 km	12 km
Sep 3, 2017	10 km E of Soda Springs, Idaho	M4.7	105 km	8 km
Feb 4, 1994	4 km WNW of Fairview, Wyoming	M4.7	119 km	5 km
Sep 11, 2017	9 km NW of Georgetown, Idaho	M4.7	115 km	8 km
Sep 3, 2017	15 km ESE of Soda Springs, Idaho	M4.7	109 km	10 km
Sep 10, 2017	12 km ESE of Soda Springs, Idaho	M4.7	108 km	5 km
Sep 6, 2017	11 km NNW of Georgetown, Idaho	M4.6	113 km	10 km
Apr 9, 2019	9 km NE of Lima, Montana	M4.6	140 km	14 km
Sep 4, 2017	13 km ESE of Soda Springs, Idaho	M4.5	108 km	6 km
Feb 7, 1994	4 km SW of Fairview, Wyoming	M4.5	124 km	5 km
Jan 26, 2018	5 km NNW of Georgetown, Idaho	M4.4	119 km	10 km
Feb 5, 2006	44 km NE of Spencer, Idaho	M4.4	134 km	14 km
Apr 5, 2011	28 km NNE of Spencer, Idaho	M4.4	125 km	12 km

Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.

Tornado History

80 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 3 injuries.

Date	Rating	Distance	Path	Fatalities
Apr 7, 1978	EF2	1 km	1.5 mi	0
Sep 26, 1959	EF2	47 km	1.0 mi	0
May 31, 2018	EF1	59 km	12.0 mi	0
Jun 1, 2002	EF1	25 km	2.5 mi	0
Feb 14, 2000	EF1	17 km	12.0 mi	0
Feb 14, 2000	EF1	58 km	14.0 mi	0
Feb 14, 2000	EF1	26 km	9.0 mi	0
Jul 20, 1999	EF1	82 km	2.5 mi	0
May 31, 1997	EF1	53 km	4.0 mi	0
Jun 2, 1992	EF1	21 km	0.5 mi	0
Jun 4, 1991	EF1	26 km	0.2 mi	0
Mar 25, 1991	EF1	77 km	1.0 mi	0
Apr 17, 1988	EF1	19 km	2.0 mi	0
Apr 17, 1988	EF1	26 km	0.5 mi	0
Mar 23, 1988	EF1	28 km	15.0 mi	0
Apr 11, 1985	EF1	48 km	0.1 mi	0
May 15, 1984	EF1	44 km	8.0 mi	0
Aug 18, 1983	EF1	92 km	2.5 mi	0
Apr 21, 1981	EF1	21 km	1.1 mi	0
Jul 8, 1980	EF1	26 km	0.1 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).

Nearby Volcanoes

5 volcanoes within 200 km. Closest: Hell's Half Acre (33 km).

Name	Type	Elevation	Last Eruption	Distance
Hell's Half Acre	Shield	1,631 m (5,351 ft)	-3250	33 km
Wapi Lava Field	Shield	1,604 m (5,262 ft)	-300	117 km
Craters of the Moon	Pyroclastic cone(s)	2,005 m (6,578 ft)	-130	118 km
Yellowstone	Caldera(s)	2,805 m (9,203 ft)	-1350	151 km
Black Butte Crater Lava Field	Shield	1,478 m (4,849 ft)	-8400	190 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	92 km
2010	JEFFERSON	108,542	48 km
2019	SHEEP	107,233	58 km
2018	GRASSY RIDGE	106,164	72 km
2000	COFFEE POINT	73,480	72 km
2017	POWERLINE	54,378	99 km
2016	HENRYS CREEK	52,988	22 km
1999	CEDAR BUTTE	49,625	62 km
2011	T17	45,631	60 km
1999	INEEL FIRE	43,547	52 km
2000	COFFEE POINT NORTH	35,980	84 km
1992	SAGEHEN	26,663	44 km
2017	WILDHORSE	25,861	88 km
1998	TILDEN 2	23,183	42 km
1999	GRANDVIEW	23,031	91 km
2017	LAVA FLOW	22,217	69 km
2012	CEDAR BUTTE WSA	20,564	64 km
1994	BUTTE CITY	18,170	82 km
2012	RIDGE TOP	17,793	37 km
2017	DEER PARK	17,745	41 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	24°F (-4°C)	1.0 in
February	26°F (-3°C)	0.9 in
March	35°F (2°C)	0.9 in
April	44°F (6°C)	1.0 in
May	52°F (11°C)	1.5 in	Wettest
June	61°F (16°C)	1.3 in
July	71°F (22°C)	0.8 in	Warmest, Driest
August	66°F (19°C)	0.8 in
September	57°F (14°C)	0.9 in
October	46°F (8°C)	0.9 in
November	32°F (0°C)	1.1 in
December	22°F (-5°C)	1.0 in	Coldest

Idaho Falls has a seasonal temperature swing of 49°F / from 22°F in December to 71°F in July. Total annual precipitation is 12.0 inches, with May being the wettest month (1.5") and July the driest (0.8").

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