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Weather & Climate in Silverton, ID
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Silverton experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 29°F in January while summers reach 66°F in July. The area gets 249 sunny days per year, above the national average. Annual precipitation totals 37.2 inches. The area receives 75.6 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 2,794 feet.
Temperature
29°F Jan (-2°C)
66°F Jul (19°C)
| Annual Average | 46.0°F |
| 15% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 249 days/yr |
Geography
| Elevation | 2,794 ft (852 m) |
| Area | 0.5 sq mi (1.2 km²) |
| Population Density | 1,347/sq mi |
| Coordinates | 47.4957°N, 115.9605°W |
| Timezone | America/Boise |
| County | Shoshone County County |
| Nearest Airport | Spokane International (GEG) 74 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 33.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 62.9 / 100 |
| Social Vulnerability | 53.4 / 100 |
| Community Resilience | 9.9 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively High |
| Avalanche | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
149 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.7.
| Dec 22, 1998 | Idaho-Montana border region | M4.7 | 79 km | 12 km |
| Jun 29, 1995 | 2 km NNW of Kila, Montana | M4.1 | 132 km | 5 km |
| May 2, 1995 | 2 km NW of Kila, Montana | M4.1 | 132 km | 9 km |
| Aug 17, 1994 | 1 km E of Mullan, Idaho | M4.1 | 14 km | 2 km |
| Nov 11, 2001 | 3 km NE of Spokane, Washington | M4.0 | 110 km | 4 km |
| Jan 20, 1998 | 15 km SSE of Happys Inn, Montana | M4.0 | 85 km | 7 km |
| Jun 25, 2001 | Washington | M3.9 | 110 km | 10 km |
| Apr 24, 2015 | 8 km WSW of Hope, Idaho | M3.9 | 87 km | 17 km |
| May 2, 1995 | 3 km WNW of Kila, Montana | M3.8 | 131 km | 9 km |
| Sep 26, 2004 | 14 km WSW of Pablo, Montana | M3.8 | 124 km | 17 km |
| Jun 28, 1998 | 3 km SE of Genesee, Idaho | M3.8 | 128 km | 10 km |
| Nov 8, 1997 | 39 km SE of Pierce, Idaho | M3.8 | 145 km | 5 km |
| Aug 19, 1999 | 12 km ENE of Happys Inn, Montana | M3.7 | 101 km | 14 km |
| Apr 24, 2015 | 12 km SSW of East Hope, Idaho | M3.7 | 77 km | 9 km |
| Oct 26, 1999 | 23 km WNW of Niarada, Montana | M3.6 | 92 km | 12 km |
| Feb 2, 1997 | 1 km NNE of Lindisfarne, Montana | M3.6 | 135 km | 5 km |
| May 30, 1996 | 3 km SSW of Mullan, Idaho | M3.6 | 12 km | 1 km |
| Mar 14, 1997 | 1 km E of Mullan, Idaho | M3.6 | 14 km | 2 km |
| Jan 20, 2000 | 21 km ENE of Athol, Idaho | M3.5 | 68 km | 5 km |
| Jun 25, 2001 | 2 km SSE of Town and Country, Washington | M3.4 | 111 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
8 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 4 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 31, 1997 | EF2 | 62 km | 5.0 mi | 0 |
| May 6, 1957 | EF2 | 93 km | 1.5 mi | 0 |
| Apr 12, 1984 | EF1 | 98 km | 1.0 mi | 0 |
| Aug 19, 1978 | EF1 | 97 km | 1.9 mi | 0 |
| Sep 9, 1994 | EF0 | 82 km | 0.5 mi | 0 |
| Jun 5, 1987 | EF0 | 21 km | 0.1 mi | 0 |
| Sep 14, 1986 | EF0 | 94 km | 0.2 mi | 0 |
| Jul 9, 1978 | EF0 | 42 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: CHIPPY CREEK (95,656 acres, 2007).
| Year | Name | Acres Burned | Distance |
| 2007 | CHIPPY CREEK | 95,656 | 91 km |
| 2021 | THORNE CREEK | 39,694 | 56 km |
| 2016 | COPPER KING | 28,338 | 66 km |
| 2017 | SUNRISE | 26,896 | 97 km |
| 2017 | SHEEP GAP | 24,702 | 69 km |
| 2023 | RIVER ROAD EAST | 18,068 | 90 km |
| 2017 | DEEP CREEK | 14,558 | 57 km |
| 2017 | MOOSE PEAK | 14,085 | 70 km |
| 2021 | DECEITFUL | 12,750 | 15 km |
| 1984 | HOUGHTON CREEK II | 12,495 | 82 km |
| 2000 | CLEAR CREEK DIVIDE COMPLEX (CLEAR CREEK) | 12,031 | 100 km |
| 2021 | TUMBLEDOWN | 11,269 | 48 km |
| 2015 | SOUTH BOBTAIL | 11,256 | 26 km |
| 2015 | NAPOLEON 1 | 9,727 | 69 km |
| 2000 | THOMPSON FLAT COMPLEX (FLAT RIDGE) | 9,298 | 88 km |
| 2015 | LOWER FLAT | 9,034 | 37 km |
| 2018 | COUGAR | 8,708 | 89 km |
| 1994 | HENRY PEAK | 8,111 | 93 km |
| 1998 | BOYER CREEK | 7,168 | 89 km |
| 2021 | TRESTLE CREEK COMPLEX | 7,117 | 95 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 5.5 in | Wettest |
| February | 28°F (-2°C) | 3.7 in | |
| March | 32°F (0°C) | 3.5 in | |
| April | 39°F (4°C) | 2.8 in | |
| May | 47°F (8°C) | 2.5 in | |
| June | 54°F (12°C) | 2.6 in | |
| July | 66°F (19°C) | 1.0 in | Warmest, Driest |
| August | 61°F (16°C) | 1.7 in | |
| September | 52°F (11°C) | 2.4 in | |
| October | 42°F (6°C) | 3.3 in | |
| November | 32°F (-0°C) | 5.2 in | |
| December | 24°F (-4°C) | 4.9 in | Coldest |
Silverton has a seasonal temperature swing of 42°F / from 24°F in December to 66°F in July. Total annual precipitation is 39.0 inches, with January being the wettest month (5.5") and July the driest (1.0").