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Weather & Climate in Koliganek, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Koliganek has a cool climate with an average annual temperature of 37°F (3°C). Winters average 17°F in January while summers reach 57°F in July. The area gets 269 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 21.4 inches (drier than the 38-inch national average). The area receives 47.4 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 245 feet.
Temperature
17°F Jan (-9°C)
57°F Jul (14°C)
| Annual Average | 36.5°F |
| 32% below US avg | |
| January Average | 17°F (-9°C) |
| July Average | 57°F (14°C) |
| Sunny Days | 269 days/yr |
Geography
| Elevation | 245 ft (75 m) |
| Area | 16.7 sq mi (43.4 km²) |
| Population Density | 13/sq mi |
| Coordinates | 59.6967°N, 157.2248°W |
| Timezone | America/Anchorage |
| County | Dillingham Census Area County |
| Nearest Airport | Ted Stevens Anchorage International (ANC) 267 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 35.7 / 100 |
| Social Vulnerability | 99.0 / 100 |
| Community Resilience | 32.7 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| 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 |
| Coastal Flood | No Rating |
| Tsunami | Very Low |
| Volcano | Very Low |
| Avalanche | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
153 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.6.
| May 1, 1990 | 19 km SSE of King Salmon, Alaska | M6.6 | 136 km | 252 km |
| Jul 23, 2016 | 26 km SSE of King Salmon, Alaska | M5.5 | 143 km | 204 km |
| Jun 30, 1993 | 34 km ESE of King Salmon, Alaska | M4.4 | 136 km | 168 km |
| Jul 13, 2007 | 48 km W of Iliamna, Alaska | M4.4 | 82 km | 6 km |
| Feb 10, 1994 | 76 km NNW of Aleknagik, Alaska | M4.4 | 119 km | 10 km |
| Nov 6, 1994 | 18 km W of Naknek, Alaska | M4.3 | 108 km | 6 km |
| Mar 25, 2006 | 35 km E of King Salmon, Alaska | M4.2 | 132 km | 193 km |
| Jan 13, 2004 | 18 km SSE of King Salmon, Alaska | M4.2 | 135 km | 201 km |
| May 31, 2016 | 20 km S of King Salmon, Alaska | M4.1 | 136 km | 201 km |
| Feb 9, 1994 | 79 km NW of Aleknagik, Alaska | M4.0 | 134 km | -3 km |
| May 26, 2011 | 37 km ESE of King Salmon, Alaska | M3.9 | 147 km | 178 km |
| Aug 27, 1990 | 33 km W of Kokhanok, Alaska | M3.8 | 108 km | 0 km |
| Oct 5, 2016 | 89 km NNW of Aleknagik, Alaska | M3.7 | 111 km | 8 km |
| Feb 12, 2011 | 4 km S of Portage Creek, Alaska | M3.7 | 96 km | 22 km |
| Jan 13, 2025 | 19 km S of Clarks Point, Alaska | M3.7 | 138 km | 2 km |
| Sep 3, 2000 | 28 km E of New Stuyahok, Alaska | M3.6 | 40 km | 25 km |
| Jul 27, 2014 | 68 km SSE of Igiugig, Alaska | M3.6 | 149 km | 160 km |
| Feb 9, 1994 | 48 km NNW of Aleknagik, Alaska | M3.5 | 103 km | 10 km |
| Jan 8, 1995 | 24 km E of King Salmon, Alaska | M3.5 | 122 km | 201 km |
| Jan 31, 2025 | 22 km S of King Salmon, Alaska | M3.5 | 139 km | 200 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Wildfire History
15 wildfires (100+ acres) recorded within 100 km. Largest: KOKTULI RIVER (296,656 acres, 2022).
| Year | Name | Acres Burned | Distance |
| 2022 | KOKTULI RIVER | 296,656 | 72 km |
| 2022 | IOWITHLA RIVER | 43,424 | 76 km |
| 2022 | KOKWOK | 32,508 | 60 km |
| 2019 | ETHEL CREEK | 31,780 | 63 km |
| 2022 | PAULS CREEK | 17,902 | 98 km |
| 2019 | LEVELOCK | 10,370 | 67 km |
| 2019 | LOWER KLUTUK | 5,997 | 45 km |
| 2015 | COPENHAGEN CREEK | 5,335 | 98 km |
| 2015 | COPENHAGEN | 3,207 | 88 km |
| 2013 | NUYAKUK RIVER | 2,496 | 40 km |
| 2015 | KING SALMON RIVER 1 | 2,418 | 75 km |
| 2015 | LITTLE KOKWOK | 2,233 | 65 km |
| 2015 | KOKWOK RIVER | 1,923 | 58 km |
| 2017 | KENAKUCHUK CREEK | 1,160 | 53 km |
| 1990 | ALAGNAK | 1,004 | 98 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-9°C) | 1.2 in | |
| February | 13°F (-11°C) | 0.9 in | Driest |
| March | 21°F (-6°C) | 1.0 in | |
| April | 31°F (-1°C) | 1.1 in | |
| May | 44°F (6°C) | 1.2 in | |
| June | 53°F (11°C) | 1.7 in | |
| July | 57°F (14°C) | 2.6 in | Warmest |
| August | 55°F (13°C) | 3.7 in | Wettest |
| September | 48°F (9°C) | 2.9 in | |
| October | 33°F (1°C) | 2.0 in | |
| November | 21°F (-6°C) | 1.5 in | |
| December | 11°F (-11°C) | 1.4 in | Coldest |
Koliganek has a seasonal temperature swing of 45°F / from 11°F in December to 57°F in July. Total annual precipitation is 21.3 inches, with August being the wettest month (3.7") and February the driest (0.9").