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Weather & Climate in Prairie City, OR

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

Prairie City experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 31°F in January while summers reach 67°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 12.3 inches (drier than the 38-inch national average). The area receives 9.6 inches of snow annually. Air quality is rated Good with a median AQI of 32. The city sits at an elevation of 3,535 feet.

Temperature

31°F Jan (-1°C) 67°F Jul (19°C)
Annual Average46.8°F
13% below US avg
January Average31°F (-1°C)
July Average67°F (19°C)
Sunny Days311 days/yr

Geography

Elevation3,535 ft (1,077 m)
Area1.0 sq mi (2.6 km²)
Population Density746/sq mi
Coordinates44.4611°N, 118.7094°W
TimezoneAmerica/Los_Angeles
CountyGrant County County
Nearest AirportGrant County Regional/Ogilvie Field (JDA)
13 miles away

Precipitation & Snow

Annual Rainfall 12.3"
68% below US avg
Snowfall 9.6"
Wettest Month (Dec) 2.05"
Driest Month (Jul) 0.59"

Air Quality

AQI Median32.0
RatingGood

Natural Hazard Risk

Overall RiskVery Low
Risk Score32.1 / 100
Social Vulnerability80.0 / 100
Community Resilience30.3 / 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 Relatively Moderate
Ice Storm Very Low
Drought Very Low
Cold Wave Very Low
Landslide Relatively Low
Volcano Very Low
Avalanche Relatively Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

79 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.1.

Jan 30, 2000 6 km SE of Condon, Oregon M4.1 138 km -1 km
Oct 27, 1994 11 km SE of Halfway, Oregon M4.0 141 km 10 km
Mar 22, 1997 10 km ESE of Condon, Oregon M3.9 135 km 0 km
Feb 1, 2000 7 km SE of Condon, Oregon M3.6 137 km -1 km
Jan 23, 2015 3 km N of Cayuse, Oregon M3.5 140 km 20 km
Aug 31, 1999 Washington-Oregon border region M3.5 136 km 3 km
Jan 30, 2000 8 km SE of Condon, Oregon M3.4 136 km -1 km
Jul 20, 1998 9 km ESE of Halfway, Oregon M3.3 142 km 12 km
Jun 16, 1992 10 km ESE of Halfway, Oregon M3.3 142 km 5 km
Aug 27, 2000 16 km W of Richland, Oregon M3.3 111 km 0 km
Apr 17, 1997 9 km ESE of Condon, Oregon M3.2 135 km 3 km
Jul 25, 2009 10 km NW of Brogan, Oregon M3.2 89 km 7 km
Jul 19, 1998 10 km ESE of Halfway, Oregon M3.2 141 km 11 km
Aug 17, 2000 14 km NE of Condon, Oregon M3.2 141 km 14 km
Aug 14, 2017 19 km NNW of Halfway, Oregon M3.1 135 km 8 km
Jul 20, 1998 10 km ESE of Halfway, Oregon M3.1 141 km 11 km
Oct 25, 1994 9 km ESE of Halfway, Oregon M3.1 141 km 10 km
Oct 1, 2003 25 km W of Richland, Oregon M3.1 101 km 21 km
Oct 17, 1993 33 km SE of Prairie City, Oregon M3.1 33 km 13 km
Jul 21, 1998 6 km N of Halfway, Oregon M3.1 136 km -1 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

8 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1.

Date Rating Distance Path Fatalities
Jul 19, 2004 EF1 61 km 2.2 mi 0
Nov 5, 2023 EF0 18 km 0.2 mi 0
Jun 8, 2016 EF0 99 km 0.2 mi 0
Jun 23, 2004 EF0 84 km 0.1 mi 0
Oct 4, 2003 EF0 41 km 0.2 mi 0
Sep 15, 1997 EF0 95 km 0.2 mi 0
May 11, 1995 EF0 79 km 0.1 mi 0
Sep 16, 1975 EF0 81 km 0.1 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Nearby Volcanoes

2 volcanoes within 200 km. Closest: Diamond Craters (151 km).

Name Type Elevation Last Eruption Distance
Diamond Craters Volcanic field 1,435 m (4,708 ft) -5610 151 km
Jordan Craters Volcanic field 1,473 m (4,833 ft) -1250 177 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: BATTLE MOUNTAIN COMPLEX (184,979 acres, 2024).

Year Name Acres Burned Distance
2024 BATTLE MOUNTAIN COMPLEX 184,979 75 km
2007 EGLEY COMPLEX (EGLEY) 139,515 89 km
2024 COW VALLEY 134,642 94 km
2015 CANYON CREEK COMPLEX 109,786 21 km
2015 CORNET-WINDY RIDGE 102,553 79 km
2014 SOUTH FORK COMPLEX 66,743 63 km
2007 MONUMENT COMPLEX (RED HILL FIRE) 54,572 78 km
1996 TOWER 50,827 64 km
2015 BENDIRE COMPLEX 49,260 78 km
2007 IRISH SPRING 47,845 57 km
2020 INDIAN CREEK 46,275 89 km
2016 RAIL 43,813 31 km
1996 BULL COMPLEX (SUMMIT) 36,318 30 km
2007 BARTLETT MOUNTAIN 31,845 88 km
2015 CORNER CREEK 0297 PR 30,303 75 km
2001 MONUMENT COMPLEX (MALLORY) 29,095 73 km
2007 JUNIPER RESERVOIR 28,455 86 km
2021 BLACK BUTTE 24,736 47 km
2002 MONUMENT-MALHEUR COMPLEX (MONUMENT) 23,860 38 km
2015 ELDORADO 20,962 52 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 31°F (-1°C) 1.8 in
February 31°F (-0°C) 1.3 in
March 36°F (2°C) 1.4 in
April 41°F (5°C) 1.3 in
May 48°F (9°C) 1.5 in
June 56°F (13°C) 1.4 in
July 67°F (19°C) 0.6 in Warmest, Driest
August 63°F (17°C) 0.9 in
September 55°F (13°C) 0.9 in
October 47°F (8°C) 1.1 in
November 35°F (2°C) 1.9 in
December 28°F (-2°C) 2.1 in Coldest, Wettest

Prairie City has a seasonal temperature swing of 39°F / from 28°F in December to 67°F in July. Total annual precipitation is 16.0 inches, with December being the wettest month (2.1") and July the driest (0.6").

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