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Summerville, OR

Full City Profile · Oregon · Umatilla County County

3.5 /5.0
B+ Good
119 Population 458/sq mi density
$118,611 Median Income $43,823 per capita
$250,000 Home Value $541,327 Zillow
49°F Avg Temperature 311 sunny days/yr
115 Violent Crime/100K 2,494 property/100K
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$118,611 median income, 6.8% unemployment
A+
Affordability
5.0 / 5.0
$250,000 home value, /mo rent
F
Safety
1.0 / 5.0
115 violent crimes/100K
B+
Education
3.5 / 5.0
31.3% bachelor's degree or higher
Summerville experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 32°F in January while summers reach 70°F in July. The area gets 311 sunny days per year. Annual precipitation totals 17.4 inches. The area receives 9.4 inches of snow annually. Air quality is rated Good with a median AQI of 32.

Temperature

32°F Jan (-0°C) 70°F Jul (21°C)
Annual Average49.4°F
9% below US avg
January Average32°F (-0°C)
July Average70°F (21°C)
Sunny Days311 days/yr

Geography

Elevation2,712 ft (827 m)
Area0.1 sq mi (0.3 km²)
Population Density458/sq mi
Coordinates45.4897°N, 118.0041°W
TimezoneAmerica/Los_Angeles
CountyUmatilla County County
Nearest AirportEastern Oregon Regional At Pendleton (PDT)
41 miles away

Precipitation & Snow

Annual Rainfall 17.4"
54% below US avg
Snowfall 9.4"
Wettest Month (Dec) 3.03"
Driest Month (Jul) 0.67"

Air Quality

AQI Median32.0
RatingGood

Air Pollutants (EPA 2023)

Ozone (O₃)0.0475 ppm

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score82.3 / 100
Social Vulnerability59.6 / 100
Community Resilience15.9 / 100

Hazard Breakdown

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

Earthquake History

115 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.3. Most recent: M2.6 on Feb 10, 2025.

Nov 28, 1991 7 km S of Walla Walla East, Washington M4.3 61 km
Jul 14, 1992 6 km S of Walla Walla East, Washington M4.1 61 km
Oct 27, 1994 11 km SE of Halfway, Oregon M4.0 109 km
Aug 7, 1992 8 km WSW of Irrigon, Oregon M3.9 130 km
Jun 28, 1998 3 km SE of Genesee, Idaho M3.8 144 km
Sep 4, 2011 14 km N of Richland, Washington M3.7 141 km
May 18, 2008 11 km SSW of Benton City, Washington M3.7 142 km
Jan 23, 2015 3 km N of Cayuse, Oregon M3.5 49 km
Dec 24, 1999 18 km WNW of New Meadows, Idaho M3.5 129 km
Oct 15, 2011 13 km N of Richland, Washington M3.4 141 km
Jun 17, 2004 11 km SSE of Washtucna, Washington M3.4 133 km
Dec 15, 1991 6 km SSW of Walla Walla East, Washington M3.3 62 km
Jul 20, 1998 9 km ESE of Halfway, Oregon M3.3 106 km
Jun 16, 1992 10 km ESE of Halfway, Oregon M3.3 107 km
Aug 27, 2000 16 km W of Richland, Oregon M3.3 97 km
May 1, 2011 13 km N of Richland, Washington M3.3 140 km
Feb 28, 2004 10 km WSW of Wallula, Washington M3.3 100 km
Jun 12, 1995 13 km N of Richland, Washington M3.3 141 km
Nov 17, 2013 13 km NNE of West Richland, Washington M3.2 142 km
Jan 26, 1992 28 km ENE of Halfway, Oregon M3.2 107 km
Source: USGS (M2.5+, 1990–2025)

Tornado History

21 tornadoes (EF0+) within 100 km since 1950. Strongest: EF2.

Date Rating Distance Fatalities
Jun 11, 1968 EF2 65 km 0
Jun 26, 1958 EF2 97 km 0
May 6, 2022 EF1 40 km 0
May 6, 2009 EF1 47 km 0
Jan 16, 2000 EF1 92 km 0
Mar 5, 2024 EF0 53 km 0
Jun 27, 2023 EF0 58 km 0
Jul 12, 2016 EF0 75 km 0
May 9, 2013 EF0 49 km 0
May 6, 2009 EF0 38 km 0
Aug 21, 2006 EF0 55 km 0
Jun 23, 2004 EF0 70 km 0
Jul 13, 2002 EF0 68 km 0
May 17, 1996 EF0 98 km 0
May 11, 1995 EF0 80 km 0
May 1, 1991 EF0 58 km 0
Aug 24, 1987 EF0 69 km 0
Jun 21, 1983 EF0 14 km 0
Sep 16, 1975 EF0 75 km 0
May 22, 1964 EF0 65 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

20 wildfires (100+ acres) within 100 km. Largest: COLUMBIA COMPLEX (118,865 ac, 2006).

Year Name Acres Distance
2006 COLUMBIA COMPLEX 118,865 77 km
2021 LICK CREEK 80,376 93 km
2015 BUTTE CREEK 79,418 65 km
2012 CACHE CREEK 75,521 98 km
1988 TEEPEE BUTTE 59,565 94 km
2005 SCHOOL 51,701 93 km
1996 TOWER 50,827 74 km
2021 GREEN RIDGE 44,604 79 km
1986 JOSEPH/STARVATION 37,064 73 km
2000 UNNAMED 27,815 97 km
2021 ELBOW CREEK 23,103 53 km
2022 STURGILL 21,641 42 km
1996 UNNAMED 21,130 87 km
1989 CANAL 18,596 79 km
2015 DRY GULCH 18,369 100 km
2024 JACK CANYON MUTUAL AID 18,287 76 km
2005 TRYON COMPLEX (CHERRY CREEK) 17,794 99 km
2023 HAT ROCK 17,264 95 km
2001 HORSE CREEK 16,947 96 km
2009 NORTH FORK COMPLEX 16,461 82 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 32°F (-0°C) 2.9 in
February 32°F (0°C) 2.1 in
March 37°F (3°C) 2.2 in
April 43°F (6°C) 1.9 in
May 50°F (10°C) 2.0 in
June 57°F (14°C) 1.7 in
July 70°F (21°C) 0.7 in Warmest, Driest
August 63°F (17°C) 0.9 in
September 55°F (13°C) 1.1 in
October 46°F (8°C) 1.7 in
November 36°F (2°C) 2.8 in
December 29°F (-2°C) 3.0 in Coldest, Wettest

Summerville has a seasonal temperature swing of 42°F / from 29°F in December to 70°F in July. Total annual precipitation is 22.9 inches, with December being the wettest month (3.0") and July the driest (0.7").

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