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Weather & Climate in Chignik, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chignik has a cool climate with an average annual temperature of 40°F (4°C). Winters average 31°F in January while summers reach 51°F in July. The area gets 233 sunny days per year, above the national average. Annual precipitation totals 48.9 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 21 / among the cleanest air in the country.
Temperature
31°F Jan (-1°C)
51°F Jul (11°C)
| Annual Average | 40.0°F |
| 26% below US avg | |
| January Average | 31°F (-1°C) |
| July Average | 51°F (11°C) |
| Sunny Days | 233 days/yr |
Geography
| Area | 15.9 sq mi (41.1 km²) |
| Population Density | 3/sq mi |
| Coordinates | 56.2952°N, 158.3918°W |
| Timezone | America/Anchorage |
| County | Lake and Peninsula Borough County |
| Nearest Airport | Ted Stevens Anchorage International (ANC) 451 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 6.3 / 100 |
| Social Vulnerability | 96.7 / 100 |
| Community Resilience | 11.7 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | No Rating |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Coastal Flood | No Rating |
| Tsunami | Relatively Low |
| Volcano | Relatively Low |
| Avalanche | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
2,594 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M8.2.
| Jul 29, 2021 | 2021 Chignik, Alaska Earthquake | M8.2 | 108 km | 35 km |
| Jul 22, 2020 | 2020 Perryville, Alaska Earthquake | M7.8 | 137 km | 28 km |
| Aug 14, 2021 | 125 km SE of Perryville, Alaska | M6.9 | 133 km | 21 km |
| May 29, 2015 | 117 km SSE of Ugashik, Alaska | M6.8 | 125 km | 73 km |
| Apr 2, 2016 | 42 km E of Port Heiden, Alaska | M6.2 | 84 km | 11 km |
| Jul 29, 2021 | 127 km SE of Chignik, Alaska | M5.9 | 127 km | 1 km |
| May 31, 2016 | 75 km SE of Perryville, Alaska | M5.7 | 104 km | 26 km |
| Jul 22, 2020 | 76 km ESE of Sand Point, Alaska | M5.7 | 135 km | 45 km |
| Jul 29, 2021 | 99 km ESE of Chignik, Alaska | M5.7 | 99 km | 35 km |
| Dec 22, 2000 | 33 km NE of Chignik, Alaska | M5.5 | 33 km | 92 km |
| Jul 30, 2021 | 140 km SE of Chignik, Alaska | M5.5 | 139 km | 43 km |
| Jul 29, 2021 | 106 km SSE of Perryville, Alaska | M5.5 | 133 km | 18 km |
| Jul 22, 2020 | 73 km S of Ivanof Bay, Alaska | M5.5 | 131 km | 36 km |
| Apr 28, 2022 | 119 km E of Chignik, Alaska | M5.4 | 118 km | 52 km |
| Jan 27, 2004 | 113 km SSE of Ugashik, Alaska | M5.4 | 122 km | 44 km |
| Jul 29, 2021 | 128 km SE of Perryville, Alaska | M5.3 | 136 km | 35 km |
| Feb 20, 2022 | 110 km SE of Perryville, Alaska | M5.3 | 119 km | 17 km |
| Jul 4, 2011 | 121 km SE of Perryville, Alaska | M5.2 | 135 km | 12 km |
| Jun 13, 2015 | 121 km E of Chignik, Alaska | M5.2 | 121 km | 77 km |
| Jan 7, 2006 | 85 km ESE of Chignik, Alaska | M5.1 | 84 km | 47 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 0.4 m (1 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2021 | KODIAK ISLAND, AK | Earthquake | 0.4 m | — | 113 km |
| 1938 | SHUMAGIN ISLANDS, AK | Earthquake | 0.3 m | — | 91 km |
| 2020 | SHUMAGIN ISLANDS, AK | Earthquake | 0.2 m | — | 137 km |
| 1989 | SEMIDI ISLANDS, AK | Earthquake | 0.1 m | — | 128 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Aniakchak (66 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Aniakchak | Caldera | 1,341 m (4,400 ft) | 1931 | 66 km |
| Chiginagak | Stratovolcano | 2,221 m (7,287 ft) | 1998 | 127 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
2 wildfires (100+ acres) recorded within 100 km. Largest: OFFAL BEACH (2,890 acres, 2019).
| Year | Name | Acres Burned | Distance |
| 2019 | OFFAL BEACH | 2,890 | 93 km |
| 2006 | MESHIK RIVER | 1,520 | 57 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 1.4 in | |
| February | 26°F (-3°C) | 1.2 in | Coldest, Driest |
| March | 26°F (-3°C) | 1.3 in | |
| April | 30°F (-1°C) | 1.4 in | |
| May | 37°F (3°C) | 1.5 in | |
| June | 44°F (7°C) | 1.7 in | |
| July | 51°F (11°C) | 2.1 in | Warmest |
| August | 51°F (10°C) | 2.5 in | |
| September | 46°F (8°C) | 3.0 in | |
| October | 37°F (3°C) | 3.2 in | Wettest |
| November | 32°F (-0°C) | 2.2 in | |
| December | 28°F (-2°C) | 2.1 in |
Chignik has a seasonal temperature swing of 26°F / from 26°F in February to 51°F in July. Total annual precipitation is 23.8 inches, with October being the wettest month (3.2") and February the driest (1.2").