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Weather & Climate in Grangeville, ID
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grangeville experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 31°F in January while summers reach 68°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 23.5 inches (drier than the 38-inch national average). The area receives 38.7 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 33. The city sits at an elevation of 3,391 feet.
Temperature
31°F Jan (-0°C)
68°F Jul (20°C)
| Annual Average | 47.5°F |
| 12% below US avg | |
| January Average | 31°F (-0°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 276 days/yr |
Geography
| Elevation | 3,391 ft (1,034 m) |
| Area | 1.5 sq mi (3.8 km²) |
| Population Density | 2,280/sq mi |
| Coordinates | 45.9258°N, 116.1219°W |
| Timezone | America/Boise |
| County | Lewis County County |
| Nearest Airport | Pullman/Moscow Regional (PUW) 74 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 33.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 3.1 / 100 |
| Social Vulnerability | 60.8 / 100 |
| Community Resilience | 3.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
84 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.
| Apr 11, 1995 | 20 km SSE of Yellow Pine, Idaho | M4.2 | 138 km | 5 km |
| Oct 27, 1994 | 11 km SE of Halfway, Oregon | M4.0 | 141 km | 10 km |
| Jun 28, 1998 | 3 km SE of Genesee, Idaho | M3.8 | 90 km | 10 km |
| Nov 8, 1997 | 39 km SE of Pierce, Idaho | M3.8 | 65 km | 5 km |
| Mar 12, 2023 | 11 km S of Donnelly, Idaho | M3.7 | 145 km | 12 km |
| Dec 24, 1999 | 18 km WNW of New Meadows, Idaho | M3.5 | 100 km | 3 km |
| Apr 1, 2020 | 30 km SSE of Yellow Pine, Idaho | M3.5 | 148 km | 10 km |
| Mar 8, 1994 | 32 km S of Wallace, Idaho | M3.4 | 141 km | 5 km |
| Sep 26, 1995 | 9 km E of McCall, Idaho | M3.4 | 114 km | 5 km |
| Mar 10, 2001 | 18 km ESE of Donnelly, Idaho | M3.4 | 140 km | 5 km |
| Jul 20, 1998 | 9 km ESE of Halfway, Oregon | M3.3 | 138 km | 12 km |
| Jun 16, 1992 | 10 km ESE of Halfway, Oregon | M3.3 | 139 km | 5 km |
| Sep 26, 1995 | southern Idaho | M3.3 | 106 km | 5 km |
| Feb 10, 2013 | 29 km ESE of Pierce, Idaho | M3.2 | 70 km | 5 km |
| Aug 4, 1995 | 32 km SSW of Yellow Pine, Idaho | M3.2 | 141 km | 5 km |
| Nov 23, 2001 | 6 km WNW of New Meadows, Idaho | M3.2 | 106 km | 0 km |
| Jul 19, 1998 | 10 km ESE of Halfway, Oregon | M3.2 | 140 km | 11 km |
| Dec 13, 2001 | 60 km W of Salmon, Idaho | M3.2 | 140 km | 5 km |
| Jan 26, 1992 | 28 km ENE of Halfway, Oregon | M3.2 | 114 km | 5 km |
| Aug 14, 2017 | 19 km NNW of Halfway, Oregon | M3.1 | 130 km | 8 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: EF2.
| Date | Rating | Distance | Path | Fatalities |
| Jun 11, 1968 | EF2 | 94 km | 9.6 mi | 0 |
| May 8, 1962 | EF2 | 74 km | 9.1 mi | 0 |
| Jun 20, 1969 | EF1 | 83 km | 1.0 mi | 0 |
| Jul 12, 2016 | EF0 | 86 km | 1.0 mi | 0 |
| Oct 7, 2010 | EF0 | 32 km | 1.0 mi | 0 |
| Oct 7, 2010 | EF0 | 35 km | 0.4 mi | 0 |
| Jun 29, 2007 | EF0 | 63 km | 0.3 mi | 0 |
| May 31, 1997 | EF0 | 85 km | 0.1 mi | 0 |
| Jul 22, 1992 | EF0 | 91 km | 0.5 mi | 0 |
| Jun 1, 1991 | EF0 | 90 km | 0.1 mi | 0 |
| May 1, 1991 | EF0 | 93 km | 0.1 mi | 0 |
| Apr 11, 1979 | EF0 | 1 km | 1.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: EAST ZONE COMPLEX (RAINES) (318,724 acres, 2007).
| Year | Name | Acres Burned | Distance |
| 2007 | EAST ZONE COMPLEX (RAINES) | 318,724 | 97 km |
| 2022 | DOUBLE CREEK | 171,012 | 62 km |
| 1994 | CORRAL CREEK-BLACKWELL COMPLEX | 140,101 | 86 km |
| 2000 | MALONEY CREEK | 131,397 | 53 km |
| 1994 | PORPHYRY SOUTH | 129,849 | 92 km |
| 2021 | SHOVEL CREEK | 109,829 | 55 km |
| 2007 | RATTLESNAKE | 102,523 | 59 km |
| 2015 | TEPEE SPRINGS | 94,878 | 68 km |
| 2017 | HIGHLINE | 93,699 | 98 km |
| 2000 | FLOSSIE COMPLEX | 90,611 | 95 km |
| 2007 | BATTLE CREEK COMPLEX (BATTLE CREEK) | 79,114 | 70 km |
| 2012 | CACHE CREEK | 75,521 | 60 km |
| 2000 | BURGDORF JUNCTION | 67,284 | 71 km |
| 2014 | BIG COUGAR | 65,397 | 57 km |
| 2007 | POE CABIN | 59,704 | 42 km |
| 1988 | TEEPEE BUTTE | 59,565 | 62 km |
| 2012 | SHEEP | 50,769 | 41 km |
| 2007 | CHIMNEY COMPLEX | 50,646 | 60 km |
| 1996 | SALT COMPLEX (SALT CREEK) | 50,250 | 53 km |
| 2012 | PORCUPINE COMPLEX | 48,980 | 94 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-0°C) | 2.3 in | |
| February | 33°F (0°C) | 1.7 in | |
| March | 38°F (3°C) | 2.5 in | |
| April | 43°F (6°C) | 2.5 in | |
| May | 50°F (10°C) | 3.2 in | Wettest |
| June | 57°F (14°C) | 2.8 in | |
| July | 68°F (20°C) | 1.2 in | Warmest, Driest |
| August | 65°F (18°C) | 1.3 in | |
| September | 56°F (13°C) | 1.8 in | |
| October | 46°F (8°C) | 2.0 in | |
| November | 36°F (2°C) | 2.2 in | |
| December | 29°F (-2°C) | 2.2 in | Coldest |
Grangeville has a seasonal temperature swing of 39°F / from 29°F in December to 68°F in July. Total annual precipitation is 25.5 inches, with May being the wettest month (3.2") and July the driest (1.2").