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Weather & Climate in Tanacross, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tanacross has a cool climate with an average annual temperature of 25°F (-4°C). Winters average -12°F in January while summers reach 59°F in July / a wide seasonal temperature swing of 71°F. The area gets 274 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 10.6 inches (drier than the 38-inch national average). The area receives 37.6 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 21 / among the cleanest air in the country. The city sits at an elevation of 3,848 feet.
Temperature
-12°F Jan (-24°C)
59°F Jul (15°C)
| Annual Average | 24.7°F |
| 54% below US avg | |
| January Average | -12°F (-24°C) |
| July Average | 59°F (15°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 3,848 ft (1,173 m) |
| Area | 81.0 sq mi (209.8 km²) |
| Population Density | 2/sq mi |
| Coordinates | 63.3287°N, 143.4866°W |
| Timezone | America/Anchorage |
| County | Southeast Fairbanks Census Area County |
| Nearest Airport | Fairbanks International (FAI) 167 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 57.0 / 100 |
| Social Vulnerability | 88.8 / 100 |
| Community Resilience | 5.3 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
1,385 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.7.
| Oct 22, 1996 | 31 km NNE of Paxson, Alaska | M5.7 | 93 km | 4 km |
| Nov 3, 2002 | 23 km NNW of Paxson, Alaska | M5.6 | 111 km | 20 km |
| Nov 3, 2002 | 23 km N of Paxson, Alaska | M5.6 | 110 km | 1 km |
| Nov 3, 2002 | 19 km NNE of Paxson, Alaska | M5.4 | 102 km | 1 km |
| Nov 4, 2002 | 36 km NE of Paxson, Alaska | M5.4 | 80 km | 1 km |
| Nov 3, 2002 | 45 km WNW of Mentasta Lake, Alaska | M5.4 | 65 km | 0 km |
| Feb 13, 2017 | 20 km NE of Nabesna, Alaska | M5.3 | 98 km | 9 km |
| Nov 3, 2002 | 32 km SW of Dry Creek, Alaska | M5.2 | 78 km | 5 km |
| Nov 4, 2002 | 41 km ENE of Paxson, Alaska | M5.2 | 68 km | 1 km |
| Nov 4, 2002 | 44 km ENE of Paxson, Alaska | M5.1 | 65 km | 5 km |
| Nov 8, 2002 | 17 km ESE of Mentasta Lake, Alaska | M5.1 | 52 km | 13 km |
| Nov 3, 2002 | 3 km ENE of Mentasta Lake, Alaska | M5.1 | 46 km | 5 km |
| Jan 24, 2003 | 31 km NE of Paxson, Alaska | M5.1 | 83 km | 1 km |
| Nov 5, 2002 | 28 km NE of Paxson, Alaska | M5.0 | 86 km | 11 km |
| Nov 8, 2002 | 21 km N of Nabesna, Alaska | M5.0 | 90 km | 1 km |
| Nov 8, 2002 | 60 km SW of Alcan Border, Alaska | M5.0 | 148 km | 1 km |
| Nov 4, 2002 | 16 km WNW of Mentasta Lake, Alaska | M5.0 | 48 km | 0 km |
| Nov 5, 2002 | Central Alaska | M4.9 | 99 km | 5 km |
| Nov 3, 2002 | 27 km SW of Dry Creek, Alaska | M4.9 | 81 km | 5 km |
| Nov 3, 2002 | 14 km N of Paxson, Alaska | M4.9 | 105 km | 1 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Nearby Volcanoes
1 volcano within 200 km. Closest: Wrangell (150 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Wrangell | Shield | 4,278 m (14,035 ft) | 1912 | 150 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: TAYLOR HIGHWAY COMPLEX (BILLY CREEK) (460,537 acres, 2004).
| Year | Name | Acres Burned | Distance |
| 2004 | TAYLOR HIGHWAY COMPLEX (BILLY CREEK) | 460,537 | 50 km |
| 2004 | TAYLOR HIGHWAY COMPLEX (CHICKEN) | 322,783 | 76 km |
| 2004 | TAYLOR HIGHWAY COMPLEX (PORCUPINE) | 267,726 | 47 km |
| 1990 | TOK RIVER | 95,688 | 37 km |
| 1998 | STP001 | 42,797 | 90 km |
| 1999 | UPPERWESTFORK | 32,987 | 48 km |
| 2018 | TAIXTSALDA HILL | 28,055 | 85 km |
| 2013 | MOON LAKE | 27,819 | 16 km |
| 2015 | LONG LAKE | 27,670 | 96 km |
| 1999 | MOSQUITO | 26,220 | 93 km |
| 2009 | LADUE RIVER | 21,953 | 93 km |
| 1994 | HAJDUKOVICH | 21,139 | 98 km |
| 2010 | EAGLE TRAIL | 20,203 | 11 km |
| 2004 | TAYLOR HIGHWAY COMPLEX (ANOMALY) | 19,692 | 77 km |
| 2013 | TETLIN JCT RIDGE | 18,530 | 60 km |
| 2013 | BILLY CREEK | 16,385 | 61 km |
| 2019 | BOUNDARY RIVER | 13,773 | 83 km |
| 1990 | PORCUPINE | 11,458 | 48 km |
| 1986 | PORCUPINE | 11,049 | 38 km |
| 2015 | HEALY LAKE | 8,577 | 94 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | -12°F (-24°C) | 0.4 in | Coldest, Driest |
| February | 3°F (-16°C) | 0.5 in | |
| March | 7°F (-14°C) | 0.4 in | |
| April | 22°F (-6°C) | 0.4 in | |
| May | 37°F (3°C) | 1.0 in | |
| June | 48°F (9°C) | 2.2 in | |
| July | 59°F (15°C) | 2.7 in | Warmest, Wettest |
| August | 48°F (9°C) | 1.8 in | |
| September | 37°F (3°C) | 1.1 in | |
| October | 20°F (-7°C) | 0.6 in | |
| November | 3°F (-16°C) | 0.6 in | |
| December | -1°F (-19°C) | 0.5 in |
Tanacross has a seasonal temperature swing of 71°F / from -12°F in January to 59°F in July. Total annual precipitation is 12.2 inches, with July being the wettest month (2.7") and January the driest (0.4").