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Weather & Climate in Ione, WA

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

Ione experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 27°F in January while summers reach 68°F in July. The area gets 269 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 28.2 inches (drier than the 38-inch national average). The area receives 54.8 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 28 / among the cleanest air in the country. The city sits at an elevation of 2,087 feet.

Temperature

27°F Jan (-3°C) 68°F Jul (20°C)
Annual Average46.0°F
15% below US avg
January Average27°F (-3°C)
July Average68°F (20°C)
Sunny Days269 days/yr

Geography

Elevation2,087 ft (636 m)
Area0.2 sq mi (0.6 km²)
Population Density721/sq mi
Coordinates48.7398°N, 117.4220°W
TimezoneAmerica/Los_Angeles
CountyPend Oreille County County
Nearest AirportSpokane International (GEG)
78 miles away

Precipitation & Snow

Annual Rainfall 28.2"
26% below US avg
Snowfall 54.8"
Wettest Month (Dec) 3.62"
Driest Month (Jul) 1.42"

Air Quality

AQI Median28.0
RatingGood

Natural Hazard Risk

Overall RiskVery Low
Risk Score28.0 / 100
Social Vulnerability40.1 / 100
Community Resilience21.9 / 100

Hazard Breakdown

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

Earthquake History

60 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.

Sep 1, 2015 15 km N of Nespelem Community, Washington M4.2 127 km 9 km
Nov 11, 2001 3 km NE of Spokane, Washington M4.0 117 km 4 km
Apr 24, 2015 8 km WSW of Hope, Idaho M3.9 94 km 17 km
Feb 5, 2023 British Columbia, Canada M3.9 150 km 1 km
Jun 25, 2001 Washington M3.9 118 km 10 km
Sep 10, 2016 23 km E of Oliver, Canada M3.9 142 km 1 km
Mar 3, 1998 16 km NNE of Grand Forks, Canada M3.8 83 km 5 km
Apr 24, 2015 12 km SSW of East Hope, Idaho M3.7 103 km 9 km
Jan 20, 2000 21 km ENE of Athol, Idaho M3.5 109 km 5 km
Dec 15, 2012 19 km S of Troy, Montana M3.4 125 km 1 km
Jun 25, 2001 2 km SSE of Town and Country, Washington M3.4 115 km 10 km
Nov 12, 2001 3 km NNE of Spokane, Washington M3.3 117 km 0 km
Sep 22, 2003 12 km NW of Rathdrum, Idaho M3.3 99 km 13 km
Oct 27, 1991 21 km N of Castlegar, Canada M3.3 87 km 7 km
Aug 20, 1990 23 km NW of Nelson, Canada M3.3 99 km -1 km
Apr 24, 2015 7 km SW of Hope, Idaho M3.3 98 km 10 km
Jul 31, 2001 2 km WNW of Town and Country, Washington M3.2 112 km 0 km
Mar 3, 1998 15 km NNE of Grand Forks, Canada M3.2 80 km 5 km
Feb 15, 2020 37 km ESE of Nelson, Canada M3.2 85 km 10 km
Aug 29, 1997 12 km N of Troy, Montana M3.1 115 km 19 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
Apr 9, 1991 EF2 73 km 1.0 mi 0
Jul 17, 1978 EF2 66 km 0.1 mi 0
Apr 5, 1972 EF2 52 km 1.0 mi 0
Jul 21, 1997 EF1 49 km 1.0 mi 0
Jul 21, 1997 EF1 49 km 1.0 mi 0
May 31, 1997 EF1 99 km 5.0 mi 0
May 29, 1994 EF1 52 km 0.1 mi 0
Jul 25, 1983 EF1 36 km 0.2 mi 0
Jun 22, 1981 EF1 88 km 0.1 mi 0
Aug 14, 1980 EF1 45 km 0.1 mi 0
Aug 19, 1978 EF1 82 km 1.9 mi 0
Apr 25, 2008 EF0 63 km 0.1 mi 0
Jun 25, 2004 EF0 50 km 4.0 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

9 tsunamis recorded within 500 km. Highest wave on record: 19.8 m (65 ft).

Year Location Cause Max Wave Deaths Distance
1952 COLUMBIA RIVER VALLEY, WA Meteorological 19.8 m — 57 km
1949 COLUMBIA RIVER VALLEY, WA Meteorological 19.8 m — 124 km
2024 COLUMBIA RIVER VALLEY, WA Meteorological 14.3 m — 56 km
1944 COLUMBIA RIVER VALLEY, WA Meteorological 9.1 m — 57 km
2009 COLUMBIA RIVER VALLEY, WA Meteorological 9.0 m — 113 km
1953 COLUMBIA RIVER VALLEY, WA Meteorological 4.8 m — 57 km
2009 COLUMBIA RIVER VALLEY, WA Meteorological 3.6 m — 108 km
1953 COLUMBIA RIVER VALLEY, WA Meteorological — — 57 km
1952 COLUMBIA RIVER VALLEY, WA Meteorological — — 57 km
Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: CARPENTER RD. (62,488 acres, 2015).

Year Name Acres Burned Distance
2015 CARPENTER RD. 62,488 91 km
2021 SUMMIT TRAIL 54,855 85 km
2015 STICKPIN 54,119 73 km
2022 RUSSELL MOUNTAIN 26,130 68 km
2015 TOWER 24,779 36 km
1988 WHITE MOUNTAIN 21,855 82 km
2021 FORD CORKSCREW 16,179 92 km
2015 RENNER 13,975 57 km
2020 KEWA FIELD 11,811 91 km
2023 OREGON 10,957 84 km
1994 COPPER BUTTE 9,068 80 km
2015 GRAVES MOUNTAIN 8,559 68 km
1988 S.17MILE1 8,089 91 km
2021 BULLDOG MOUNTAIN 8,049 63 km
2021 TRESTLE CREEK COMPLEX 7,117 99 km
2020 INCHELIUM HIWAY 7,046 75 km
2018 HORNS MOUNTAIN 6,890 53 km
2001 MT. LEONA COMPLEX 5,978 78 km
2003 TOGO MOUNTAIN 5,495 75 km
2017 NOISY CREEK 5,452 16 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 27°F (-3°C) 3.2 in
February 29°F (-2°C) 2.3 in
March 35°F (2°C) 2.4 in
April 43°F (6°C) 2.1 in
May 51°F (10°C) 2.5 in
June 57°F (14°C) 2.5 in
July 68°F (20°C) 1.4 in Warmest, Driest
August 63°F (17°C) 1.5 in
September 54°F (12°C) 1.5 in
October 43°F (6°C) 1.7 in
November 32°F (0°C) 3.5 in
December 25°F (-4°C) 3.6 in Coldest, Wettest

Ione has a seasonal temperature swing of 43°F / from 25°F in December to 68°F in July. Total annual precipitation is 28.2 inches, with December being the wettest month (3.6") and July the driest (1.4").

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