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Weather & Climate in Tanana, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tanana has a cool climate with an average annual temperature of 26°F (-4°C). Winters average -9°F in January while summers reach 60°F in July / a wide seasonal temperature swing of 69°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 11.5 inches (drier than the 38-inch national average). The area receives 50.0 inches of snow annually, making winter weather a significant factor for residents. 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 279 feet.
Temperature
-9°F Jan (-23°C)
60°F Jul (15°C)
| Annual Average | 25.5°F |
| 53% below US avg | |
| January Average | -9°F (-23°C) |
| July Average | 60°F (15°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 279 ft (85 m) |
| Area | 15.7 sq mi (40.6 km²) |
| Population Density | 29/sq mi |
| Coordinates | 65.1840°N, 152.0551°W |
| Timezone | America/Anchorage |
| County | Yukon-Koyukuk Census Area County |
| Nearest Airport | Fairbanks International (FAI) 125 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 61.6 / 100 |
| Social Vulnerability | 99.4 / 100 |
| Community Resilience | 7.1 / 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 High |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
| Avalanche | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
637 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.6.
| Feb 3, 2000 | northern Alaska | M5.6 | 104 km | 10 km |
| Aug 31, 2014 | 14 km E of Minto, Alaska | M5.2 | 141 km | 17 km |
| Jan 6, 2019 | 61 km WNW of Tanana, Alaska | M5.1 | 62 km | 17 km |
| Jun 4, 2001 | 54 km SSW of Tanana, Alaska | M5.1 | 56 km | 23 km |
| Nov 5, 1997 | 19 km ENE of Ruby, Alaska | M4.9 | 149 km | 10 km |
| Jan 7, 1990 | 16 km SE of Minto, Alaska | M4.9 | 140 km | 20 km |
| Apr 8, 2019 | 64 km WNW of Tanana, Alaska | M4.8 | 65 km | 9 km |
| Apr 2, 2003 | 26 km SSE of Rampart, Alaska | M4.7 | 97 km | 16 km |
| Nov 9, 2000 | 53 km S of Tanana, Alaska | M4.6 | 55 km | 33 km |
| Mar 25, 2001 | Central Alaska | M4.6 | 146 km | 22 km |
| Sep 6, 2019 | 65 km SSW of Tanana, Alaska | M4.6 | 67 km | 11 km |
| Jan 12, 1990 | 29 km SE of Minto, Alaska | M4.5 | 149 km | 19 km |
| Apr 11, 2019 | 15 km NNW of Four Mile Road, Alaska | M4.5 | 144 km | 20 km |
| Sep 19, 2022 | 15 km NNW of Four Mile Road, Alaska | M4.5 | 142 km | 19 km |
| Oct 16, 1995 | 55 km NW of Rampart, Alaska | M4.4 | 82 km | 9 km |
| Apr 30, 2021 | 40 km SSW of Tanana, Alaska | M4.3 | 43 km | 19 km |
| Mar 11, 1991 | 28 km N of Four Mile Road, Alaska | M4.3 | 141 km | 16 km |
| May 18, 2016 | 34 km NW of Manley Hot Springs, Alaska | M4.2 | 47 km | 15 km |
| Aug 20, 2025 | 15 km N of Four Mile Road, Alaska | M4.2 | 148 km | 15 km |
| Apr 2, 2003 | 25 km SSE of Rampart, Alaska | M4.2 | 96 km | 17 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: NORTH DAG (429,669 acres, 2004).
| Year | Name | Acres Burned | Distance |
| 2004 | NORTH DAG | 429,669 | 53 km |
| 2015 | TOBATOKH | 220,212 | 88 km |
| 2005 | LITTLE MUD 2 | 188,055 | 78 km |
| 2015 | TANANA AREA FIRES | 176,909 | 15 km |
| 2000 | ZITZIANA | 167,771 | 78 km |
| 2009 | TITNA RIVER | 157,456 | 94 km |
| 2015 | BIG MUD RIVER 1 | 141,021 | 65 km |
| 2000 | BERING CREEK | 136,741 | 53 km |
| 2009 | ZITZIANA | 120,372 | 91 km |
| 2015 | TORMENT CREEK | 106,995 | 92 km |
| 2022 | CHITANANA | 105,745 | 51 km |
| 2000 | GRAND CREEK | 98,482 | 76 km |
| 2019 | LITTLE MUD RIVER | 98,227 | 63 km |
| 2015 | HAY SLOUGH | 86,219 | 31 km |
| 2015 | BLIND RIVER | 84,240 | 43 km |
| 2009 | STEVENS CREEK 1 | 81,281 | 63 km |
| 2022 | BITZSHITINI | 77,588 | 77 km |
| 2015 | BERING CREEK | 76,296 | 75 km |
| 2018 | ZITZIANA RIVER | 70,350 | 86 km |
| 2005 | BONEY CREEK | 61,224 | 26 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | -9°F (-23°C) | 0.6 in | Coldest |
| February | -3°F (-19°C) | 0.5 in | |
| March | 7°F (-14°C) | 0.5 in | |
| April | 25°F (-4°C) | 0.3 in | Driest |
| May | 44°F (7°C) | 0.6 in | |
| June | 57°F (14°C) | 1.7 in | |
| July | 60°F (15°C) | 2.4 in | Warmest |
| August | 54°F (12°C) | 2.7 in | Wettest |
| September | 43°F (6°C) | 1.7 in | |
| October | 24°F (-5°C) | 0.9 in | |
| November | 3°F (-16°C) | 0.8 in | |
| December | -4°F (-20°C) | 0.8 in |
Tanana has a seasonal temperature swing of 69°F / from -9°F in January to 60°F in July. Total annual precipitation is 13.1 inches, with August being the wettest month (2.7") and April the driest (0.3").