All Countries
Weather & Climate in Chalkyitsik, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chalkyitsik has a cool climate with an average annual temperature of 23°F (-5°C). Winters average -16°F in January while summers reach 61°F in July / a wide seasonal temperature swing of 77°F. The area gets 200 sunny days per year. 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 518 feet.
Temperature
-16°F Jan (-27°C)
61°F Jul (16°C)
| Annual Average | 23.0°F |
| 57% below US avg | |
| January Average | -16°F (-27°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 200 days/yr |
Geography
| Elevation | 518 ft (158 m) |
| Area | 8.8 sq mi (22.7 km²) |
| Population Density | 12/sq mi |
| Coordinates | 66.6468°N, 143.7893°W |
| Timezone | America/Anchorage |
| County | Fairbanks North Star Borough County |
| Nearest Airport | Fairbanks International (FAI) 171 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 88.5 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 26.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Winter Weather | Very High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | No Rating |
| Cold Wave | Relatively High |
| Landslide | Relatively High |
| Volcano | Very Low |
| Avalanche | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
489 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.4.
| Feb 5, 2006 | 61 km SE of Chalkyitsik, Alaska | M5.4 | 63 km | 9 km |
| Feb 5, 2006 | 64 km SE of Chalkyitsik, Alaska | M5.1 | 66 km | 2 km |
| Jun 11, 2023 | 14 km E of Central, Alaska | M4.8 | 123 km | 15 km |
| Aug 21, 1993 | 52 km NNE of Venetie, Alaska | M4.7 | 137 km | 9 km |
| Aug 25, 1996 | 88 km ENE of Venetie, Alaska | M4.7 | 92 km | 42 km |
| Apr 3, 2015 | 64 km S of Arctic Village, Alaska | M4.6 | 130 km | 11 km |
| May 17, 2008 | 79 km ESE of Chalkyitsik, Alaska | M4.5 | 82 km | 20 km |
| Dec 5, 2009 | 58 km ENE of Chalkyitsik, Alaska | M4.5 | 61 km | 12 km |
| May 11, 2018 | 45 km N of Venetie, Alaska | M4.4 | 141 km | 8 km |
| May 5, 1997 | 69 km ESE of Chalkyitsik, Alaska | M4.4 | 72 km | 23 km |
| Jan 30, 1998 | 32 km S of Circle, Alaska | M4.3 | 124 km | 10 km |
| Jun 10, 2007 | 76 km SE of Chalkyitsik, Alaska | M4.3 | 78 km | 16 km |
| Feb 18, 2006 | 76 km SE of Chalkyitsik, Alaska | M4.3 | 78 km | 16 km |
| Feb 1, 2013 | 16 km ESE of Central, Alaska | M4.3 | 129 km | 14 km |
| Feb 19, 2010 | 81 km SE of Chalkyitsik, Alaska | M4.2 | 84 km | 15 km |
| Apr 30, 1990 | 53 km N of Venetie, Alaska | M4.2 | 149 km | 6 km |
| Mar 25, 1992 | 27 km ESE of Beaver, Alaska | M4.2 | 142 km | 2 km |
| Aug 25, 1993 | 57 km NNE of Venetie, Alaska | M4.2 | 136 km | 17 km |
| Mar 29, 2006 | 74 km SE of Chalkyitsik, Alaska | M4.2 | 76 km | 18 km |
| Jun 14, 2025 | 44 km WNW of Central, Alaska | M4.2 | 128 km | 14 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: CHALKYITSIK COMPLEX (470,507 acres, 2019).
| Year | Name | Acres Burned | Distance |
| 2019 | CHALKYITSIK COMPLEX | 470,507 | 27 km |
| 2009 | CRAZY MOUNTAIN COMPLEX (LITTLE BLACK ONE) | 346,582 | 59 km |
| 2004 | WINTER TRAIL | 295,961 | 76 km |
| 2005 | SALMON FORK | 255,606 | 74 km |
| 1999 | KEVINJIK | 252,963 | 79 km |
| 1993 | 332557 | 214,280 | 91 km |
| 2004 | PREACHER CREEK | 212,441 | 88 km |
| 2009 | ROCK SLOUGH | 138,111 | 40 km |
| 1988 | FYU NE 50 | 132,518 | 46 km |
| 2005 | COLEEN MOUNTAIN | 131,623 | 87 km |
| 1990 | 032042 | 123,334 | 99 km |
| 1991 | YUKON FLATS 26 | 122,896 | 61 km |
| 2005 | SHEENJEK RIVER | 117,276 | 45 km |
| 2004 | LOWER MOUTH | 86,397 | 96 km |
| 1991 | 132460 | 83,354 | 38 km |
| 1988 | 832043 | 77,975 | 48 km |
| 1993 | 3322292 | 60,782 | 77 km |
| 2009 | SHEENJEK | 56,294 | 70 km |
| 1985 | 531018 | 54,920 | 43 km |
| 2004 | SOLSTICE COMPLEX (BOULDER CREEK) | 54,003 | 89 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | -16°F (-27°C) | 0.4 in | Coldest |
| February | -13°F (-25°C) | 0.3 in | |
| March | -0°F (-18°C) | 0.3 in | |
| April | 21°F (-6°C) | 0.2 in | Driest |
| May | 43°F (6°C) | 0.3 in | |
| June | 57°F (14°C) | 0.9 in | |
| July | 61°F (16°C) | 1.2 in | Warmest, Wettest |
| August | 54°F (12°C) | 1.2 in | |
| September | 41°F (5°C) | 0.7 in | |
| October | 20°F (-7°C) | 0.5 in | |
| November | -4°F (-20°C) | 0.4 in | |
| December | -13°F (-25°C) | 0.4 in |
Chalkyitsik has a seasonal temperature swing of 77°F / from -16°F in January to 61°F in July. Total annual precipitation is 6.6 inches, with July being the wettest month (1.2") and April the driest (0.2").