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Weather & Climate in Bancroft, ID
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Bancroft has a cool climate with an average annual temperature of 44°F (7°C). Winters average 22°F in January while summers reach 68°F in July. The area gets 302 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 15.1 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 33. The city sits at an elevation of 5,423 feet.
Temperature
22°F Jan (-6°C)
68°F Jul (20°C)
| Annual Average | 43.8°F |
| 19% below US avg | |
| January Average | 22°F (-6°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 302 days/yr |
Geography
| Elevation | 5,423 ft (1,653 m) |
| Area | 0.6 sq mi (1.6 km²) |
| Population Density | 513/sq mi |
| Coordinates | 42.7202°N, 111.8830°W |
| Timezone | America/Boise |
| County | Caribou County County |
| Nearest Airport | Pocatello Regional (PIH) 38 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 33.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 7.2 / 100 |
| Social Vulnerability | 13.4 / 100 |
| Community Resilience | 14.9 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Volcano | Very Low |
| Avalanche | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
1,310 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.8.
| Feb 3, 1994 | 4 km SSE of Auburn, Wyoming | M5.8 | 74 km | 8 km |
| Sep 2, 2017 | 12 km E of Soda Springs, Idaho | M5.3 | 36 km | 10 km |
| Apr 21, 2001 | 29 km WSW of Freedom, Idaho | M5.3 | 46 km | 1 km |
| Sep 10, 2017 | 9 km NNW of Georgetown, Idaho | M5.0 | 42 km | 10 km |
| Apr 15, 2010 | 9 km NE of Randolph, Utah | M4.9 | 129 km | 10 km |
| Aug 27, 2016 | 4 km ENE of Bondurant, Wyoming | M4.8 | 136 km | 12 km |
| Feb 11, 1994 | 3 km SSE of Auburn, Wyoming | M4.8 | 73 km | 5 km |
| Sep 3, 2017 | 15 km ESE of Soda Springs, Idaho | M4.7 | 39 km | 10 km |
| Sep 10, 2017 | 12 km ESE of Soda Springs, Idaho | M4.7 | 36 km | 5 km |
| Sep 11, 2017 | 9 km NW of Georgetown, Idaho | M4.7 | 41 km | 8 km |
| Sep 3, 2017 | 10 km E of Soda Springs, Idaho | M4.7 | 35 km | 8 km |
| Feb 4, 1994 | 4 km WNW of Fairview, Wyoming | M4.7 | 70 km | 5 km |
| Sep 6, 2017 | 11 km NNW of Georgetown, Idaho | M4.6 | 40 km | 10 km |
| Feb 7, 1994 | 4 km SW of Fairview, Wyoming | M4.5 | 71 km | 5 km |
| Sep 4, 2017 | 13 km ESE of Soda Springs, Idaho | M4.5 | 37 km | 6 km |
| Feb 10, 1994 | 3 km WSW of Auburn, Wyoming | M4.4 | 68 km | 5 km |
| Feb 3, 1994 | 2 km SW of Auburn, Wyoming | M4.4 | 71 km | 5 km |
| Nov 10, 1992 | 32 km WNW of Freedom, Idaho | M4.4 | 56 km | 10 km |
| Jan 26, 2018 | 5 km NNW of Georgetown, Idaho | M4.4 | 46 km | 10 km |
| Feb 3, 1994 | 0 km NNE of Auburn, Wyoming | M4.4 | 73 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
59 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 5 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Aug 17, 1990 | EF2 | 78 km | 4.0 mi | 0 |
| Apr 7, 1978 | EF2 | 88 km | 1.5 mi | 0 |
| Feb 14, 2000 | EF1 | 73 km | 12.0 mi | 0 |
| Feb 14, 2000 | EF1 | 67 km | 9.0 mi | 0 |
| Feb 14, 2000 | EF1 | 70 km | 14.0 mi | 0 |
| Jul 20, 1999 | EF1 | 69 km | 2.5 mi | 0 |
| Jun 11, 1993 | EF1 | 46 km | 10.0 mi | 0 |
| Sep 17, 1989 | EF1 | 83 km | 0.2 mi | 0 |
| May 29, 1987 | EF1 | 82 km | 0.2 mi | 0 |
| Aug 24, 1986 | EF1 | 94 km | 0.5 mi | 0 |
| May 21, 1986 | EF1 | 36 km | 0.5 mi | 0 |
| May 21, 1986 | EF1 | 76 km | 5.0 mi | 0 |
| Aug 18, 1983 | EF1 | 33 km | 2.5 mi | 0 |
| Jun 30, 1982 | EF1 | 69 km | 1.2 mi | 0 |
| Jul 17, 1981 | EF1 | 83 km | 0.8 mi | 0 |
| May 6, 1981 | EF1 | 95 km | 0.5 mi | 0 |
| Jul 24, 1980 | EF1 | 79 km | 0.1 mi | 0 |
| May 26, 1964 | EF1 | 62 km | 0.5 mi | 0 |
| Mar 13, 1959 | EF1 | 78 km | 0.4 mi | 0 |
| May 18, 1956 | EF1 | 68 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: 3.6 m (12 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1909 | UTAH | Earthquake | 3.6 m | — | 122 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Hell's Half Acre (98 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hell's Half Acre | Shield | 1,631 m (5,351 ft) | -3250 | 98 km |
| Wapi Lava Field | Shield | 1,604 m (5,262 ft) | -300 | 111 km |
| Craters of the Moon | Pyroclastic cone(s) | 2,005 m (6,578 ft) | -130 | 153 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: COFFEE POINT (73,480 acres, 2000).
| Year | Name | Acres Burned | Distance |
| 2000 | COFFEE POINT | 73,480 | 96 km |
| 2017 | POWERLINE | 54,378 | 59 km |
| 2016 | HENRYS CREEK | 52,988 | 81 km |
| 2006 | STONE 2 | 50,677 | 97 km |
| 1994 | ELEVATOR | 31,854 | 90 km |
| 2013 | STATE | 31,011 | 86 km |
| 1992 | SAGEHEN | 26,663 | 44 km |
| 1998 | TILDEN 2 | 23,183 | 93 km |
| 2012 | CEDAR BUTTE WSA | 20,564 | 100 km |
| 2012 | RIDGE TOP | 17,793 | 54 km |
| 2000 | FISHER SPRINGS | 17,428 | 65 km |
| 2000 | EAST FALL CREEK | 17,131 | 96 km |
| 2005 | ROUND BUTTE | 16,856 | 92 km |
| 2007 | CLEVELAND | 16,172 | 47 km |
| 1992 | MEADOW DIVIDE | 12,968 | 96 km |
| 1998 | EAGLE TWO | 12,809 | 68 km |
| 2010 | ROOSTER ROCK | 12,666 | 66 km |
| 2000 | TAYLOR | 12,633 | 92 km |
| 1988 | METCALF | 11,946 | 69 km |
| 2000 | MOONSHINE | 11,489 | 62 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-6°C) | 1.4 in | |
| February | 23°F (-5°C) | 1.2 in | |
| March | 32°F (0°C) | 1.4 in | |
| April | 41°F (5°C) | 1.3 in | |
| May | 50°F (10°C) | 2.0 in | Wettest |
| June | 58°F (15°C) | 1.4 in | |
| July | 68°F (20°C) | 1.1 in | Warmest, Driest |
| August | 65°F (18°C) | 1.1 in | |
| September | 55°F (13°C) | 1.3 in | |
| October | 44°F (7°C) | 1.2 in | |
| November | 31°F (-0°C) | 1.3 in | |
| December | 21°F (-6°C) | 1.3 in | Coldest |
Bancroft has a seasonal temperature swing of 47°F / from 21°F in December to 68°F in July. Total annual precipitation is 16.0 inches, with May being the wettest month (2.0") and July the driest (1.1").