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Weather & Climate in Granite, OR
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Granite has a cool climate with an average annual temperature of 43°F (6°C). Winters average 25°F in January while summers reach 63°F in July. The area gets 276 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 20.8 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 32. The city sits at an elevation of 4,667 feet.
Temperature
25°F Jan (-4°C)
63°F Jul (17°C)
| Annual Average | 42.6°F |
| 21% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 276 days/yr |
Geography
| Elevation | 4,667 ft (1,423 m) |
| Area | 0.4 sq mi (1.0 km²) |
| Population Density | 216/sq mi |
| Coordinates | 44.8103°N, 118.4192°W |
| Timezone | America/Los_Angeles |
| County | Grant County County |
| Nearest Airport | Grant County Regional/Ogilvie Field (JDA) 39 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 32.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 32.1 / 100 |
| Social Vulnerability | 80.0 / 100 |
| Community Resilience | 30.3 / 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
109 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.3.
| Nov 28, 1991 | 7 km S of Walla Walla East, Washington | M4.3 | 131 km | 9 km |
| Jul 14, 1992 | 6 km S of Walla Walla East, Washington | M4.1 | 132 km | 11 km |
| Jan 30, 2000 | 6 km SE of Condon, Oregon | M4.1 | 141 km | -1 km |
| Oct 27, 1994 | 11 km SE of Halfway, Oregon | M4.0 | 112 km | 10 km |
| Aug 7, 1992 | 8 km WSW of Irrigon, Oregon | M3.9 | 148 km | 0 km |
| Mar 22, 1997 | 10 km ESE of Condon, Oregon | M3.9 | 137 km | 0 km |
| Feb 1, 2000 | 7 km SE of Condon, Oregon | M3.6 | 140 km | -1 km |
| Jan 23, 2015 | 3 km N of Cayuse, Oregon | M3.5 | 101 km | 20 km |
| Aug 31, 1999 | Washington-Oregon border region | M3.5 | 138 km | 3 km |
| Jan 30, 2000 | 8 km SE of Condon, Oregon | M3.4 | 139 km | -1 km |
| Jun 16, 1992 | 10 km ESE of Halfway, Oregon | M3.3 | 113 km | 5 km |
| Jul 20, 1998 | 9 km ESE of Halfway, Oregon | M3.3 | 112 km | 12 km |
| Aug 27, 2000 | 16 km W of Richland, Oregon | M3.3 | 83 km | 0 km |
| Dec 15, 1991 | 6 km SSW of Walla Walla East, Washington | M3.3 | 132 km | 8 km |
| Feb 28, 2004 | 10 km WSW of Wallula, Washington | M3.3 | 144 km | 1 km |
| Jan 26, 1992 | 28 km ENE of Halfway, Oregon | M3.2 | 129 km | 5 km |
| Jul 25, 2009 | 10 km NW of Brogan, Oregon | M3.2 | 85 km | 7 km |
| Aug 17, 2000 | 14 km NE of Condon, Oregon | M3.2 | 139 km | 14 km |
| Jul 19, 1998 | 10 km ESE of Halfway, Oregon | M3.2 | 112 km | 11 km |
| Apr 17, 1997 | 9 km ESE of Condon, Oregon | M3.2 | 137 km | 3 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
7 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1.
| Date | Rating | Distance | Path | Fatalities |
| Jul 19, 2004 | EF1 | 62 km | 2.2 mi | 0 |
| Nov 5, 2023 | EF0 | 60 km | 0.2 mi | 0 |
| Jun 23, 2004 | EF0 | 48 km | 0.1 mi | 0 |
| Oct 4, 2003 | EF0 | 60 km | 0.2 mi | 0 |
| May 11, 1995 | EF0 | 47 km | 0.1 mi | 0 |
| Jun 21, 1983 | EF0 | 69 km | 0.1 mi | 0 |
| Sep 16, 1975 | EF0 | 47 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
1 volcano within 200 km. Closest: Diamond Craters (192 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Diamond Craters | Volcanic field | 1,435 m (4,708 ft) | -5610 | 192 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 | 70 km |
| 2024 | COW VALLEY | 134,642 | 95 km |
| 2015 | CANYON CREEK COMPLEX | 109,786 | 66 km |
| 2015 | CORNET-WINDY RIDGE | 102,553 | 60 km |
| 2007 | MONUMENT COMPLEX (RED HILL FIRE) | 54,572 | 80 km |
| 1996 | TOWER | 50,827 | 33 km |
| 2015 | BENDIRE COMPLEX | 49,260 | 95 km |
| 2007 | IRISH SPRING | 47,845 | 74 km |
| 2016 | RAIL | 43,813 | 52 km |
| 1996 | BULL COMPLEX (SUMMIT) | 36,318 | 24 km |
| 2024 | THOMPSON | 31,066 | 87 km |
| 2001 | MONUMENT COMPLEX (MALLORY) | 29,095 | 74 km |
| 2000 | UNNAMED | 27,815 | 99 km |
| 2021 | BLACK BUTTE | 24,736 | 77 km |
| 2002 | MONUMENT-MALHEUR COMPLEX (MONUMENT) | 23,860 | 59 km |
| 2022 | STURGILL | 21,641 | 88 km |
| 2015 | ELDORADO | 20,962 | 60 km |
| 1989 | DOOLEY MOUNTAIN | 18,747 | 56 km |
| 2024 | JACK CANYON MUTUAL AID | 18,287 | 81 km |
| 2009 | NORTH FORK COMPLEX | 16,461 | 23 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 2.8 in | |
| February | 26°F (-3°C) | 1.9 in | |
| March | 31°F (-1°C) | 2.0 in | |
| April | 36°F (2°C) | 1.6 in | |
| May | 44°F (6°C) | 1.7 in | |
| June | 50°F (10°C) | 1.7 in | |
| July | 63°F (17°C) | 0.7 in | Warmest, Driest |
| August | 58°F (14°C) | 1.1 in | |
| September | 50°F (10°C) | 1.1 in | |
| October | 42°F (6°C) | 1.5 in | |
| November | 32°F (-0°C) | 2.6 in | |
| December | 24°F (-5°C) | 3.0 in | Coldest, Wettest |
Granite has a seasonal temperature swing of 40°F / from 24°F in December to 63°F in July. Total annual precipitation is 21.5 inches, with December being the wettest month (3.0") and July the driest (0.7").