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Weather & Climate in Anderson, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Anderson has a cool climate with an average annual temperature of 27°F (-3°C). Winters average -8°F in January while summers reach 62°F in July / a wide seasonal temperature swing of 70°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 14.1 inches (drier than the 38-inch national average). 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 561 feet.
Temperature
-8°F Jan (-22°C)
62°F Jul (16°C)
| Annual Average | 27.3°F |
| 49% below US avg | |
| January Average | -8°F (-22°C) |
| July Average | 62°F (16°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 561 ft (171 m) |
| Area | 42.2 sq mi (109.3 km²) |
| Population Density | 4/sq mi |
| Coordinates | 64.3083°N, 149.1632°W |
| Timezone | America/Anchorage |
| County | Denali Borough County |
| Nearest Airport | Fairbanks International (FAI) 52 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 28.3 / 100 |
| Social Vulnerability | 17.5 / 100 |
| Community Resilience | 26.5 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
4,418 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.9.
| Nov 3, 2002 | 2002 Denali Fault, Alaska Earthquake | M7.9 | 122 km | 4 km |
| Oct 23, 2002 | 53 km ENE of Cantwell, Alaska | M6.6 | 107 km | 4 km |
| Oct 6, 1995 | 36 km E of Minto, Alaska | M6.0 | 100 km | 9 km |
| Nov 29, 2000 | 52 km WSW of Ferry, Alaska | M5.8 | 69 km | 16 km |
| Dec 30, 1995 | 66 km ESE of Denali National Park, Alaska | M5.7 | 141 km | 137 km |
| Apr 8, 2021 | 28 km SE of Cantwell, Alaska | M5.5 | 126 km | 80 km |
| Jan 19, 2024 | 4 km SW of Salcha, Alaska | M5.3 | 108 km | 11 km |
| Sep 1, 2000 | 71 km SE of Denali National Park, Alaska | M5.3 | 141 km | 137 km |
| Jan 23, 2011 | 42 km E of Denali National Park, Alaska | M5.2 | 119 km | 16 km |
| Aug 31, 2014 | 14 km E of Minto, Alaska | M5.2 | 94 km | 17 km |
| Nov 4, 2002 | 78 km ESE of McKinley Park, Alaska | M5.1 | 123 km | 5 km |
| Nov 8, 2002 | 36 km ENE of Cantwell, Alaska | M5.1 | 103 km | 6 km |
| Jul 5, 2002 | 77 km E of Cantwell, Alaska | M5.1 | 122 km | 0 km |
| Nov 1, 1992 | 30 km W of Ferry, Alaska | M5.0 | 42 km | 147 km |
| Aug 27, 2013 | 67 km SE of Denali National Park, Alaska | M5.0 | 142 km | 130 km |
| Nov 3, 2002 | 57 km E of Cantwell, Alaska | M5.0 | 113 km | 0 km |
| Dec 6, 2000 | 59 km WSW of Ferry, Alaska | M5.0 | 72 km | 12 km |
| Nov 3, 2002 | 56 km ENE of Cantwell, Alaska | M4.9 | 110 km | 5 km |
| Jan 7, 1990 | 16 km SE of Minto, Alaska | M4.9 | 84 km | 20 km |
| Nov 3, 2002 | 72 km E of Cantwell, Alaska | M4.9 | 122 km | 11 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: RAILBELT COMPLEX (MINTO FLATS SOUTH) (523,527 acres, 2009).
| Year | Name | Acres Burned | Distance |
| 2009 | RAILBELT COMPLEX (MINTO FLATS SOUTH) | 523,527 | 39 km |
| 2002 | GESKAKMINA LAKE | 260,205 | 62 km |
| 2000 | ZITZIANA | 167,771 | 94 km |
| 2010 | TOKLAT 2 | 146,447 | 69 km |
| 2006 | PARKS HWY | 125,276 | 26 km |
| 2009 | ZITZIANA | 120,372 | 97 km |
| 2009 | WOOD RIVER 1 | 120,133 | 63 km |
| 2009 | RAILBELT COMPLEX (REX CREEK) | 87,861 | 22 km |
| 2001 | FISH CREEK | 83,362 | 24 km |
| 2022 | CLEAR | 72,998 | 17 km |
| 2018 | ZITZIANA RIVER | 70,350 | 83 km |
| 2013 | SANDLESS LAKE | 56,931 | 67 km |
| 2023 | CLEAR CREEK | 54,404 | 54 km |
| 2012 | DRY CREEK | 49,047 | 92 km |
| 2009 | BEAR CREEK | 48,237 | 98 km |
| 2000 | BEARPAW MT | 39,542 | 82 km |
| 2015 | BLAIR | 37,977 | 95 km |
| 2022 | MINTO LAKES | 37,628 | 88 km |
| 2013 | TOKLAT RIVER EAST | 34,216 | 76 km |
| 2023 | ROCK CREEK | 33,852 | 37 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | -8°F (-22°C) | 0.6 in | Coldest |
| February | -1°F (-19°C) | 0.5 in | |
| March | 11°F (-12°C) | 0.5 in | |
| April | 29°F (-2°C) | 0.3 in | Driest |
| May | 46°F (8°C) | 0.7 in | |
| June | 57°F (14°C) | 2.0 in | |
| July | 62°F (16°C) | 2.7 in | Warmest, Wettest |
| August | 55°F (13°C) | 2.5 in | |
| September | 43°F (6°C) | 1.4 in | |
| October | 24°F (-4°C) | 1.0 in | |
| November | 4°F (-16°C) | 0.8 in | |
| December | -2°F (-19°C) | 0.8 in |
Anderson has a seasonal temperature swing of 69°F / from -8°F in January to 62°F in July. Total annual precipitation is 13.7 inches, with July being the wettest month (2.7") and April the driest (0.3").