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Weather & Climate in Fernwood, ID
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Fernwood experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 30°F in January while summers reach 68°F in July. The area gets 249 sunny days per year, above the national average. Annual precipitation totals 31.1 inches. The area receives 56.0 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 33. The city sits at an elevation of 2,764 feet.
Temperature
30°F Jan (-1°C)
68°F Jul (20°C)
| Annual Average | 47.9°F |
| 11% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 249 days/yr |
Geography
| Elevation | 2,764 ft (842 m) |
| Area | 1.3 sq mi (3.3 km²) |
| Population Density | 101/sq mi |
| Coordinates | 47.1151°N, 116.3865°W |
| Timezone | America/Boise |
| County | Benewah County County |
| Nearest Airport | Pullman/Moscow Regional (PUW) 43 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 33.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 19.9 / 100 |
| Social Vulnerability | 52.1 / 100 |
| Community Resilience | 18.8 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Moderate |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
104 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.7.
| Dec 22, 1998 | Idaho-Montana border region | M4.7 | 132 km | 12 km |
| Aug 17, 1994 | 1 km E of Mullan, Idaho | M4.1 | 61 km | 2 km |
| Nov 11, 2001 | 3 km NE of Spokane, Washington | M4.0 | 99 km | 4 km |
| Jan 20, 1998 | 15 km SSE of Happys Inn, Montana | M4.0 | 137 km | 7 km |
| Apr 24, 2015 | 8 km WSW of Hope, Idaho | M3.9 | 123 km | 17 km |
| Jun 25, 2001 | Washington | M3.9 | 99 km | 10 km |
| Nov 8, 1997 | 39 km SE of Pierce, Idaho | M3.8 | 121 km | 5 km |
| Jun 28, 1998 | 3 km SE of Genesee, Idaho | M3.8 | 75 km | 10 km |
| Apr 24, 2015 | 12 km SSW of East Hope, Idaho | M3.7 | 114 km | 9 km |
| Mar 14, 1997 | 1 km E of Mullan, Idaho | M3.6 | 60 km | 2 km |
| Oct 26, 1999 | 23 km WNW of Niarada, Montana | M3.6 | 143 km | 12 km |
| May 30, 1996 | 3 km SSW of Mullan, Idaho | M3.6 | 56 km | 1 km |
| Jan 20, 2000 | 21 km ENE of Athol, Idaho | M3.5 | 100 km | 5 km |
| Jun 28, 1997 | 3 km NNW of Mullan, Idaho | M3.4 | 61 km | 2 km |
| Jun 25, 2001 | 2 km SSE of Town and Country, Washington | M3.4 | 101 km | 10 km |
| Jun 17, 2004 | 11 km SSE of Washtucna, Washington | M3.4 | 149 km | 17 km |
| Dec 15, 2012 | 19 km S of Troy, Montana | M3.4 | 136 km | 1 km |
| Mar 8, 1994 | 32 km S of Wallace, Idaho | M3.4 | 35 km | 5 km |
| May 14, 2014 | 5 km NE of Happys Inn, Montana | M3.4 | 148 km | 15 km |
| Nov 2, 1996 | 4 km W of Trout Creek, Montana | M3.4 | 97 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
20 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 3 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 31, 1997 | EF2 | 85 km | 5.0 mi | 0 |
| Aug 30, 1971 | EF2 | 76 km | 0.5 mi | 0 |
| May 8, 1962 | EF2 | 86 km | 9.1 mi | 0 |
| May 6, 1957 | EF2 | 74 km | 1.5 mi | 0 |
| Jun 15, 1954 | EF2 | 83 km | 0.5 mi | 0 |
| May 19, 1986 | EF1 | 49 km | 2.0 mi | 0 |
| Apr 12, 1984 | EF1 | 93 km | 1.0 mi | 0 |
| Oct 17, 1983 | EF1 | 97 km | 0.5 mi | 0 |
| May 2, 1973 | EF1 | 63 km | 0.1 mi | 0 |
| Jun 20, 1969 | EF1 | 75 km | 1.0 mi | 0 |
| May 6, 2022 | EF0 | 94 km | 2.1 mi | 0 |
| Jun 29, 2007 | EF0 | 78 km | 0.3 mi | 0 |
| May 31, 1997 | EF0 | 89 km | 0.1 mi | 0 |
| Sep 9, 1994 | EF0 | 77 km | 0.5 mi | 0 |
| Jun 1, 1991 | EF0 | 76 km | 0.1 mi | 0 |
| May 1, 1991 | EF0 | 75 km | 0.1 mi | 0 |
| Jun 5, 1987 | EF0 | 48 km | 0.1 mi | 0 |
| Sep 14, 1986 | EF0 | 50 km | 0.2 mi | 0 |
| Jul 9, 1978 | EF0 | 91 km | 0.1 mi | 0 |
| May 22, 1964 | EF0 | 88 km | 1.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 9.0 m (30 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2009 | COLUMBIA RIVER VALLEY, WA | Meteorological | 9.0 m | — | 146 km |
Source: NOAA/NCEI Historical Tsunami Database.
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: KAMIAH GULCH (48,459 acres, 2015).
| Year | Name | Acres Burned | Distance |
| 2015 | KAMIAH GULCH | 48,459 | 96 km |
| 2015 | FISHER | 20,757 | 88 km |
| 2021 | DECEITFUL | 12,750 | 65 km |
| 2021 | BEDROCK | 11,998 | 64 km |
| 2021 | TUMBLEDOWN | 11,269 | 68 km |
| 2015 | SOUTH BOBTAIL | 11,256 | 79 km |
| 2016 | SNAKE RIVER FIRE | 10,349 | 93 km |
| 2015 | LOWER FLAT | 9,034 | 79 km |
| 2003 | MILEPOST 59 | 8,361 | 95 km |
| 2015 | SNOWY SUMMIT | 6,928 | 94 km |
| 2016 | SPOKANE COMPLEX | 6,839 | 80 km |
| 2015 | CHICADEE | 5,766 | 52 km |
| 2017 | CUB CREEK | 5,683 | 86 km |
| 2015 | NORTH GRIZZLY | 5,286 | 71 km |
| 2006 | ULM PEAK | 4,610 | 92 km |
| 2023 | RIDGE CREEK | 4,608 | 83 km |
| 2012 | ISABELLA COMPLEX | 4,479 | 67 km |
| 2021 | BENTON RIDGE | 4,400 | 54 km |
| 2018 | SURPRISE CREEK | 3,746 | 91 km |
| 2018 | RAMPIKE | 3,688 | 89 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 4.8 in | Wettest |
| February | 31°F (-0°C) | 3.5 in | |
| March | 36°F (2°C) | 3.3 in | |
| April | 43°F (6°C) | 2.6 in | |
| May | 50°F (10°C) | 2.6 in | |
| June | 57°F (14°C) | 2.3 in | |
| July | 68°F (20°C) | 1.1 in | Warmest, Driest |
| August | 63°F (17°C) | 1.4 in | |
| September | 55°F (13°C) | 1.9 in | |
| October | 45°F (7°C) | 2.4 in | |
| November | 34°F (1°C) | 4.2 in | |
| December | 27°F (-3°C) | 4.5 in | Coldest |
Fernwood has a seasonal temperature swing of 41°F / from 27°F in December to 68°F in July. Total annual precipitation is 34.5 inches, with January being the wettest month (4.8") and July the driest (1.1").