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Weather & Climate in Diomede, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Diomede has a cool climate with an average annual temperature of 27°F (-3°C). Winters average 17°F in January while summers reach 39°F in July. The area gets 311 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 14.0 inches (drier than the 38-inch national average). The area receives 8.4 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 902 feet.
Temperature
17°F Jan (-9°C)
39°F Jul (4°C)
| Annual Average | 27.0°F |
| 50% below US avg | |
| January Average | 17°F (-9°C) |
| July Average | 39°F (4°C) |
| Sunny Days | 311 days/yr |
Geography
| Elevation | 902 ft (275 m) |
| Area | 2.4 sq mi (6.3 km²) |
| Population Density | 10/sq mi |
| Coordinates | 65.7539°N, 168.9226°W |
| Timezone | America/Anchorage |
| Nearest Airport | Fairbanks International (FAI) 609 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Earthquake History
279 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.
| Nov 3, 1996 | 89 km SSE of Lavrentiya, Russia | M5.2 | 127 km | 10 km |
| Aug 9, 1996 | 73 km SE of Lavrentiya, Russia | M5.2 | 89 km | 10 km |
| Sep 25, 2009 | 148 km NNW of Diomede, Alaska | M5.1 | 148 km | 12 km |
| May 21, 2011 | 12 km N of Port Clarence, Alaska | M5.0 | 104 km | 20 km |
| Aug 9, 1996 | 93 km SE of Lavrentiya, Russia | M4.9 | 100 km | 10 km |
| Jul 10, 2006 | 30 km W of Diomede, Alaska | M4.9 | 32 km | 10 km |
| Jul 9, 2016 | 44 km NNE of Brevig Mission, Alaska | M4.8 | 128 km | 27 km |
| Sep 25, 2009 | 145 km NNW of Diomede, Alaska | M4.7 | 146 km | 16 km |
| Nov 25, 2000 | 107 km NW of Diomede, Alaska | M4.6 | 108 km | 10 km |
| Feb 3, 2025 | 26 km SSW of Wales, Alaska | M4.6 | 47 km | 25 km |
| Feb 16, 2025 | 33 km SW of Wales, Alaska | M4.6 | 43 km | 14 km |
| Jul 8, 2006 | 57 km NE of Lavrentiya, Russia | M4.5 | 60 km | 3 km |
| Oct 22, 2003 | 34 km ESE of Wales, Alaska | M4.4 | 76 km | 9 km |
| Apr 25, 2014 | 6 km E of Brevig Mission, Alaska | M4.4 | 127 km | 0 km |
| May 13, 2010 | 37 km NNW of Brevig Mission, Alaska | M4.4 | 103 km | 10 km |
| Aug 9, 1996 | 87 km SE of Lavrentiya, Russia | M4.4 | 97 km | 10 km |
| Apr 4, 1999 | 47 km S of Lavrentiya, Russia | M4.3 | 112 km | 1 km |
| May 21, 1997 | 15 km NNW of Port Clarence, Alaska | M4.3 | 98 km | 5 km |
| May 25, 2010 | 82 km NNW of Diomede, Alaska | M4.2 | 83 km | 25 km |
| Apr 7, 2010 | 50 km SSE of Lavrentiya, Russia | M4.2 | 103 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-9°C) | 0.9 in | |
| February | 15°F (-9°C) | 0.8 in | |
| March | 15°F (-10°C) | 0.7 in | Coldest, Driest |
| April | 21°F (-6°C) | 0.8 in | |
| May | 29°F (-2°C) | 0.7 in | |
| June | 34°F (1°C) | 0.8 in | |
| July | 39°F (4°C) | 1.3 in | |
| August | 39°F (4°C) | 2.4 in | Warmest, Wettest |
| September | 36°F (2°C) | 1.9 in | |
| October | 31°F (-1°C) | 1.6 in | |
| November | 27°F (-3°C) | 1.3 in | |
| December | 22°F (-6°C) | 0.9 in |
Diomede has a seasonal temperature swing of 24°F / from 15°F in March to 39°F in August. Total annual precipitation is 14.0 inches, with August being the wettest month (2.4") and March the driest (0.7").