Weather & Climate in Pine Grove, OR
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Pine Grove has a cool climate with an average annual temperature of 43°F (6°C). Winters average 32°F in January while summers reach 58°F in July. Annual precipitation totals 89.8 inches (wetter than the 38-inch national average). The area receives 232.5 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 23 / among the cleanest air in the country. 87% of days have good air quality. The city sits at an elevation of 2,193 feet.
Temperature
32°F Jan (-0°C)
58°F Jul (15°C)
| Annual Average | 42.9°F |
| 21% below US avg | |
| January Average | 32°F (-0°C) |
| July Average | 58°F (15°C) |
Geography
| Elevation | 2,193 ft (668 m) |
| Area | 2.3 sq mi (6.0 km²) |
| Population Density | 16/sq mi |
| Coordinates | 45.1135°N, 121.3553°W |
| Timezone | America/Los_Angeles |
| County | Wasco County County |
| Nearest Airport | Columbia Gorge Regional/The Dalles Municipal (DLS) 36 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 23.0 |
| Rating | Good |
| Good Days % | 87.1% |
| Unhealthy Days | 0 |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 67.8 / 100 |
| Social Vulnerability | 28.5 / 100 |
| Community Resilience | 44.8 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively High |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively High |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Volcano | Relatively Low |
| Avalanche | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
980 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.6.
| Mar 25, 1993 | 4 km E of Scotts Mills, Oregon | M5.6 | 99 km | 20 km |
| Jun 29, 2002 | 6 km ENE of Government Camp, Oregon | M4.5 | 36 km | 5 km |
| Feb 14, 2011 | 31 km S of Morton, Washington | M4.3 | 146 km | 4 km |
| Jul 14, 2008 | 11 km ESE of Maupin, Oregon | M4.2 | 32 km | 16 km |
| Jun 17, 2010 | 30 km S of White Swan, Washington | M4.2 | 121 km | 3 km |
| Jan 30, 2000 | 6 km SE of Condon, Oregon | M4.1 | 97 km | -1 km |
| Oct 9, 1998 | 20 km S of White Swan, Washington | M4.0 | 131 km | 2 km |
| Jun 6, 2021 | 6 km NE of Government Camp, Oregon | M3.9 | 37 km | 4 km |
| Nov 18, 1997 | 20 km NW of Bickleton, Washington | M3.9 | 134 km | 15 km |
| Oct 1, 2004 | 37 km NNE of Amboy, Washington | M3.9 | 137 km | -1 km |
| Mar 22, 1997 | 10 km ESE of Condon, Oregon | M3.9 | 101 km | 0 km |
| Apr 24, 2003 | 3 km NW of North Portland, Oregon | M3.9 | 123 km | 17 km |
| Jan 3, 2018 | 37 km SSE of Morton, Washington | M3.9 | 138 km | 10 km |
| Feb 8, 1995 | 9 km ESE of Hubbard, Oregon | M3.8 | 106 km | 24 km |
| Aug 3, 2006 | 2 km WNW of Cherry Grove, Washington | M3.8 | 124 km | 14 km |
| Jun 14, 2007 | 12 km ESE of Maupin, Oregon | M3.8 | 32 km | 18 km |
| Jun 29, 2002 | 7 km NE of Government Camp, Oregon | M3.8 | 36 km | 5 km |
| Oct 1, 2004 | 36 km NNE of Amboy, Washington | M3.7 | 137 km | -2 km |
| Jun 8, 1993 | 5 km ESE of Scotts Mills, Oregon | M3.7 | 98 km | 19 km |
| Jan 31, 2013 | 3 km ENE of Amboy, Washington | M3.7 | 122 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
12 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1.
| Date | Rating | Distance | Path | Fatalities |
| Oct 9, 2000 | EF1 | 99 km | 0.1 mi | 0 |
| Oct 9, 2000 | EF1 | 98 km | 0.1 mi | 0 |
| Nov 12, 1991 | EF1 | 94 km | 0.2 mi | 0 |
| Apr 12, 1957 | EF1 | 78 km | 2.5 mi | 0 |
| Oct 22, 2022 | EF0 | 68 km | 0.9 mi | 0 |
| Jun 13, 2020 | EF0 | 93 km | 2.0 mi | 0 |
| Jun 9, 2004 | EF0 | 56 km | 0.5 mi | 0 |
| Jul 16, 1993 | EF0 | 47 km | 0.5 mi | 0 |
| Apr 9, 1991 | EF0 | 94 km | 0.2 mi | 0 |
| Oct 26, 1984 | EF0 | 100 km | 0.5 mi | 0 |
| May 11, 1970 | EF0 | 27 km | 0.1 mi | 0 |
| Oct 13, 1968 | EF0 | 66 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 250.0 m (820 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1980 | WASHINGTON | Explosion | 250.0 m | 61 | 137 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
14 volcanoes within 200 km. Closest: Hood (39 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hood | Stratovolcano | 3,426 m (11,240 ft) | 1866 | 39 km |
| Jefferson | Stratovolcano | 3,199 m (10,495 ft) | 950 | 60 km |
| Sand Mountain Field | Pyroclastic cone(s) | 1,664 m (5,459 ft) | -950 | 93 km |
| Indian Heaven | Shield(s) | 1,806 m (5,925 ft) | -6250 | 98 km |
| Belknap | Shield(s) | 2,095 m (6,873 ft) | 480 | 100 km |
| West Crater | Volcanic field | 1,329 m (4,360 ft) | -5750 | 102 km |
| Three Sisters | Complex | 3,159 m (10,364 ft) | 440 | 114 km |
| Adams | Stratovolcano | 3,742 m (12,277 ft) | 950 | 122 km |
| Bachelor | Stratovolcano | 2,763 m (9,065 ft) | -5800 | 129 km |
| St. Helens | Stratovolcano | 2,549 m (8,363 ft) | 2008 | 137 km |
| Newberry | Shield | 2,434 m (7,986 ft) | 690 | 155 km |
| Davis Lake | Volcanic field | 2,163 m (7,096 ft) | -2790 | 176 km |
| Devils Garden | Volcanic field | 1,698 m (5,571 ft) | Unknown | 182 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 196 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: LIONSHEAD (197,732 acres, 2020).
| Year | Name | Acres Burned | Distance |
| 2020 | LIONSHEAD | 197,732 | 54 km |
| 2020 | BEACHIE CREEK | 194,619 | 85 km |
| 2020 | RIVERSIDE | 138,190 | 68 km |
| 1996 | SIMNASHO | 118,466 | 27 km |
| 2018 | BOXCAR 0410 RN | 99,874 | 29 km |
| 2003 | BB COMPLEX (BOOTH) | 91,281 | 75 km |
| 2011 | HANCOCK COMPLEX | 71,495 | 75 km |
| 2017 | NENA SPRINGS | 70,074 | 20 km |
| 2018 | SUBSTATION 0730 RN | 69,109 | 54 km |
| 2015 | COUNTY LINE 2 | 68,189 | 32 km |
| 2011 | 0655 RAZOR BACK EAST | 65,350 | 31 km |
| 2013 | SUNNYSIDE TURNOFF | 50,028 | 29 km |
| 2018 | STUBBLEFIELD 1008 RN | 49,160 | 74 km |
| 2017 | EAGLE CREEK | 48,816 | 72 km |
| 2018 | JENNIES PEAK 1039 RN | 47,664 | 89 km |
| 2011 | HIGH CASCADES | 44,498 | 43 km |
| 2014 | BLACK ROCK | 40,760 | 64 km |
| 2014 | SHANIKO BUTTE | 39,852 | 17 km |
| 2018 | LONG HOLLOW 0806 RN | 33,662 | 39 km |
| 1994 | LECLAIRE | 32,087 | 33 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (-0°C) | 12.6 in | |
| February | 32°F (0°C) | 9.6 in | |
| March | 35°F (1°C) | 9.4 in | |
| April | 38°F (3°C) | 7.8 in | |
| May | 45°F (7°C) | 5.8 in | |
| June | 50°F (10°C) | 4.0 in | |
| July | 58°F (15°C) | 0.9 in | Driest |
| August | 59°F (15°C) | 1.1 in | Warmest |
| September | 54°F (12°C) | 3.1 in | |
| October | 45°F (7°C) | 8.4 in | |
| November | 36°F (2°C) | 12.7 in | |
| December | 31°F (-1°C) | 14.4 in | Coldest, Wettest |
Pine Grove has a seasonal temperature swing of 29°F / from 31°F in December to 59°F in August. Total annual precipitation is 89.8 inches, with December being the wettest month (14.4") and July the driest (0.9").