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Weather & Climate in Chevak, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chevak has a cool climate with an average annual temperature of 30°F (-1°C). Winters average 9°F in January while summers reach 53°F in July. The area gets 292 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 24.1 inches (drier than the 38-inch national average). The area receives 8.7 inches of snow annually. 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 67 feet.
Temperature
9°F Jan (-13°C)
53°F Jul (12°C)
| Annual Average | 29.8°F |
| 45% below US avg | |
| January Average | 9°F (-13°C) |
| July Average | 53°F (12°C) |
| Sunny Days | 292 days/yr |
Geography
| Elevation | 67 ft (20 m) |
| Area | 1.1 sq mi (3.0 km²) |
| Population Density | 407/sq mi |
| Coordinates | 61.5296°N, 165.5941°W |
| Timezone | America/Anchorage |
| County | Kusilvak Census Area County |
| Nearest Airport | Ted Stevens Anchorage International (ANC) 516 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 57.9 / 100 |
| Social Vulnerability | 100.0 / 100 |
| Community Resilience | 5.9 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | No Rating |
| 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 Low |
| Coastal Flood | No Rating |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
7 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Jun 4, 2018 | 85 km WNW of Hooper Bay, Alaska | M3.8 | 110 km | 6 km |
| Mar 14, 2019 | 104 km W of Hooper Bay, Alaska | M3.0 | 131 km | 0 km |
| Jan 16, 2006 | 10 km NE of Nunam Iqua, Alaska | M3.0 | 127 km | 15 km |
| Mar 21, 2005 | 23 km WNW of Emmonak, Alaska | M2.9 | 148 km | 10 km |
| Jan 23, 2025 | 30 km SSE of Nunam Iqua, Alaska | M2.7 | 97 km | 2 km |
| Jan 12, 2022 | 69 km SSW of Hooper Bay, Alaska | M2.6 | 88 km | 13 km |
| Jul 17, 2025 | 42 km SSW of Nunam Iqua, Alaska | M2.6 | 76 km | 19 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Wildfire History
4 wildfires (100+ acres) recorded within 100 km. Largest: INGAKSLUGWAT HILLS (69,482 acres, 2020).
| Year | Name | Acres Burned | Distance |
| 2020 | INGAKSLUGWAT HILLS | 69,482 | 81 km |
| 2020 | KOCHILAGOK HILL | 29,730 | 63 km |
| 2020 | MANOKINAK RIVER | 12,674 | 66 km |
| 2021 | KONGISHLUK BAY | 3,400 | 31 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 9°F (-13°C) | 1.1 in | Coldest |
| February | 11°F (-12°C) | 1.1 in | |
| March | 14°F (-10°C) | 0.9 in | |
| April | 23°F (-5°C) | 0.7 in | Driest |
| May | 36°F (2°C) | 1.1 in | |
| June | 47°F (9°C) | 2.1 in | |
| July | 53°F (12°C) | 2.6 in | Warmest |
| August | 52°F (11°C) | 5.3 in | Wettest |
| September | 45°F (7°C) | 4.3 in | |
| October | 33°F (0°C) | 2.1 in | |
| November | 22°F (-6°C) | 1.6 in | |
| December | 13°F (-11°C) | 1.2 in |
Chevak has a seasonal temperature swing of 44°F / from 9°F in January to 53°F in July. Total annual precipitation is 24.1 inches, with August being the wettest month (5.3") and April the driest (0.7").