Weather & Climate in Riggins, ID

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

Riggins experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 33°F in January while summers reach 71°F in July. The area gets 311 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 17.4 inches (drier than the 38-inch national average). The area receives 7.1 inches of snow annually. Air quality is rated Good with a median AQI of 33. The city sits at an elevation of 1,820 feet.

Temperature

33°F Jan (0°C) 71°F Jul (22°C)

Annual Average	50.2°F
	7% below US avg
January Average	33°F (0°C)
July Average	71°F (22°C)
Sunny Days	311 days/yr

Geography

Elevation	1,820 ft (555 m)
Area	0.4 sq mi (1.1 km²)
Population Density	590/sq mi
Coordinates	45.4206°N, 116.3176°W
Timezone	America/Boise
County	Adams County County
Nearest Airport	Pullman/Moscow Regional (PUW) 99 miles away

Precipitation & Snow

Annual Rainfall 17.4"

54% below US avg

Snowfall 7.1"

Wettest Month (Jan) 2.48"

Driest Month (Jul) 0.98"

Air Quality

AQI Median	33.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	39.6 / 100
Social Vulnerability	60.6 / 100
Community Resilience	8.6 / 100

Hazard Breakdown

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

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

Earthquake History

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

Mar 31, 2020	Stanley, Idaho	M6.5	142 km	12 km
Feb 26, 2024	10 km N of Smiths Ferry, Idaho	M4.9	116 km	12 km
Jun 25, 2020	27 km NW of Stanley, Idaho	M4.6	145 km	8 km
May 21, 2020	26 km NW of Stanley, Idaho	M4.4	146 km	6 km
May 14, 2020	31 km NW of Stanley, Idaho	M4.4	142 km	13 km
Apr 11, 1995	20 km SSE of Yellow Pine, Idaho	M4.2	99 km	5 km
Apr 21, 2020	29 km NW of Stanley, Idaho	M4.1	143 km	10 km
Oct 27, 1994	11 km SE of Halfway, Oregon	M4.0	86 km	10 km
Apr 12, 2020	35 km NNW of Stanley, Idaho	M3.9	138 km	10 km
Apr 1, 2020	28 km NW of Stanley, Idaho	M3.9	145 km	10 km
Apr 3, 2020	26 km NW of Stanley, Idaho	M3.9	146 km	15 km
Jul 3, 2020	26 km NW of Stanley, Idaho	M3.9	146 km	10 km
Jun 17, 2020	southern Idaho	M3.9	147 km	13 km
Apr 2, 2020	24 km NW of Stanley, Idaho	M3.8	148 km	10 km
Jul 3, 2020	27 km NW of Stanley, Idaho	M3.8	146 km	10 km
Jun 5, 2020	34 km NNW of Stanley, Idaho	M3.8	138 km	13 km
Oct 4, 2002	15 km W of Cascade, Idaho	M3.8	102 km	5 km
Apr 1, 2020	26 km NW of Stanley, Idaho	M3.8	146 km	10 km
Apr 5, 2020	25 km NW of Stanley, Idaho	M3.8	148 km	9 km
Nov 8, 1997	39 km SE of Pierce, Idaho	M3.8	116 km	5 km

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

Tornado History

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

Date	Rating	Distance	Path	Fatalities
Jun 4, 2006	EF2	54 km	12.0 mi	0
Jun 11, 1968	EF2	91 km	9.6 mi	0
Jun 27, 1958	EF1	92 km	5.0 mi	0
Jul 12, 2016	EF0	58 km	1.0 mi	0
May 9, 2013	EF0	83 km	0.1 mi	0
Oct 7, 2010	EF0	79 km	1.0 mi	0
Oct 7, 2010	EF0	86 km	0.4 mi	0
May 6, 2009	EF0	97 km	0.2 mi	0
Aug 21, 2006	EF0	77 km	0.2 mi	0
May 17, 1996	EF0	86 km	0.1 mi	0
Jul 22, 1992	EF0	52 km	0.5 mi	0
Jul 22, 1992	EF0	37 km	0.5 mi	0
Apr 11, 1979	EF0	57 km	1.0 mi	0

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

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: EAST ZONE COMPLEX (RAINES) (318,724 acres, 2007).

Year	Name	Acres Burned	Distance
2007	EAST ZONE COMPLEX (RAINES)	318,724	59 km
2007	CASCADE COMPLEX (MONUMENTAL)	317,157	96 km
2022	DOUBLE CREEK	171,012	28 km
1994	CORRAL CREEK-BLACKWELL COMPLEX	140,101	37 km
2000	MALONEY CREEK	131,397	69 km
1994	PORPHYRY SOUTH	129,849	66 km
2021	SHOVEL CREEK	109,829	78 km
2007	RATTLESNAKE	102,523	58 km
2020	WOODHEAD	98,995	83 km
2015	TEPEE SPRINGS	94,878	19 km
2017	HIGHLINE	93,699	91 km
2000	FLOSSIE COMPLEX	90,611	90 km
2007	BATTLE CREEK COMPLEX (BATTLE CREEK)	79,114	25 km
2012	CACHE CREEK	75,521	70 km
2000	BURGDORF JUNCTION	67,284	52 km
2014	BIG COUGAR	65,397	77 km
2007	POE CABIN	59,704	25 km
1988	TEEPEE BUTTE	59,565	67 km
2006	FOSTER GULCH	52,496	75 km
2012	SHEEP	50,769	19 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	33°F (0°C)	2.5 in	Wettest
February	31°F (-1°C)	1.8 in
March	35°F (2°C)	2.2 in
April	41°F (5°C)	2.1 in
May	49°F (9°C)	2.4 in
June	56°F (13°C)	2.3 in
July	71°F (22°C)	1.0 in	Warmest, Driest
August	64°F (18°C)	1.1 in
September	55°F (13°C)	1.5 in
October	46°F (8°C)	1.7 in
November	34°F (1°C)	2.2 in
December	27°F (-3°C)	2.4 in	Coldest

Riggins has a seasonal temperature swing of 44°F / from 27°F in December to 71°F in July. Total annual precipitation is 23.2 inches, with January being the wettest month (2.5") and July the driest (1.0").

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