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Weather & Climate in Port Clarence, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Port Clarence has a cool climate with an average annual temperature of 28°F (-2°C). Winters average 6°F in January while summers reach 52°F in July. 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 17.2 inches (drier than the 38-inch national average). The area receives 80.8 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 10 feet.
Temperature
6°F Jan (-15°C)
52°F Jul (11°C)
| Annual Average | 28.0°F |
| 48% below US avg | |
| January Average | 6°F (-15°C) |
| July Average | 52°F (11°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 10 ft (3 m) |
| Area | 35.0 sq mi (90.7 km²) |
| Population Density | 1/sq mi |
| Coordinates | 65.1095°N, 166.7647°W |
| Timezone | America/Anchorage |
| County | Nome Census Area County |
| Nearest Airport | Fairbanks International (FAI) 551 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 34.1 / 100 |
| Social Vulnerability | 99.9 / 100 |
| Community Resilience | 16.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | No Rating |
| Strong Wind | No Rating |
| Winter Weather | Relatively High |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
| Coastal Flood | No Rating |
| Volcano | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
300 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.0.
| May 21, 2011 | 12 km N of Port Clarence, Alaska | M5.0 | 30 km | 20 km |
| Aug 9, 1996 | 93 km SE of Lavrentiya, Russia | M4.9 | 143 km | 10 km |
| Jul 9, 2016 | 44 km NNE of Brevig Mission, Alaska | M4.8 | 72 km | 27 km |
| Jun 18, 2000 | 79 km NW of White Mountain, Alaska | M4.7 | 115 km | 25 km |
| Aug 30, 1992 | 27 km NNW of Nome, Alaska | M4.7 | 68 km | 14 km |
| Feb 16, 2025 | 33 km SW of Wales, Alaska | M4.6 | 91 km | 14 km |
| Feb 3, 2025 | 26 km SSW of Wales, Alaska | M4.6 | 81 km | 25 km |
| Jan 16, 2024 | 65 km NE of Teller, Alaska | M4.5 | 91 km | 11 km |
| Aug 27, 1996 | 43 km E of Teller, Alaska | M4.4 | 63 km | 10 km |
| May 13, 2010 | 37 km NNW of Brevig Mission, Alaska | M4.4 | 62 km | 10 km |
| Aug 9, 1996 | 87 km SE of Lavrentiya, Russia | M4.4 | 146 km | 10 km |
| Apr 25, 2014 | 6 km E of Brevig Mission, Alaska | M4.4 | 32 km | 0 km |
| Oct 22, 2003 | 34 km ESE of Wales, Alaska | M4.4 | 50 km | 9 km |
| Jul 14, 1997 | 46 km NNW of Solomon, Alaska | M4.4 | 97 km | 10 km |
| May 21, 1997 | 15 km NNW of Port Clarence, Alaska | M4.3 | 33 km | 5 km |
| Mar 8, 2015 | 49 km S of Nome, Alaska | M4.3 | 137 km | 19 km |
| Jul 17, 2016 | 43 km NNE of Brevig Mission, Alaska | M4.2 | 71 km | 20 km |
| Mar 22, 2017 | 62 km S of Diomede, Alaska | M4.2 | 106 km | 21 km |
| Apr 21, 1994 | 33 km NNW of Solomon, Alaska | M4.2 | 97 km | 10 km |
| Mar 4, 1990 | 9 km SW of Solomon, Alaska | M4.1 | 125 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Nearby Volcanoes
1 volcano within 200 km. Closest: Imuruk Lake (160 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Imuruk Lake | Shield(s) | 610 m (2,001 ft) | 300 | 160 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
2 wildfires (100+ acres) recorded within 100 km. Largest: OME NW 60 (3,539 acres, 1994).
| Year | Name | Acres Burned | Distance |
| 1994 | OME NW 60 | 3,539 | 42 km |
| 2004 | QUARTZ CREEK 2 | 2,274 | 89 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 6°F (-15°C) | 0.9 in | |
| February | 1°F (-17°C) | 0.7 in | Coldest |
| March | 4°F (-16°C) | 0.7 in | |
| April | 15°F (-9°C) | 0.6 in | |
| May | 31°F (-1°C) | 0.5 in | Driest |
| June | 42°F (6°C) | 0.8 in | |
| July | 52°F (11°C) | 2.0 in | Warmest |
| August | 49°F (10°C) | 3.1 in | Wettest |
| September | 42°F (6°C) | 2.7 in | |
| October | 30°F (-1°C) | 1.8 in | |
| November | 18°F (-8°C) | 1.3 in | |
| December | 7°F (-14°C) | 0.9 in |
Port Clarence has a seasonal temperature swing of 51°F / from 1°F in February to 52°F in July. Total annual precipitation is 15.9 inches, with August being the wettest month (3.1") and May the driest (0.5").