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Weather & Climate in Twin Hills, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Twin Hills has a cool climate with an average annual temperature of 31°F (-0°C). Winters average 7°F in January while summers reach 56°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 19.7 inches (drier than the 38-inch national average). The area receives 64.0 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 11 feet.
Temperature
7°F Jan (-14°C)
56°F Jul (14°C)
| Annual Average | 31.4°F |
| 42% below US avg | |
| January Average | 7°F (-14°C) |
| July Average | 56°F (14°C) |
| Sunny Days | 274 days/yr |
Geography
| Elevation | 11 ft (3 m) |
| Area | 23.0 sq mi (59.7 km²) |
| Population Density | 3/sq mi |
| Coordinates | 59.0818°N, 160.2806°W |
| Timezone | America/Anchorage |
| County | Bethel Census Area County |
| Nearest Airport | Ted Stevens Anchorage International (ANC) 382 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 44.3 / 100 |
| Social Vulnerability | 100.0 / 100 |
| Community Resilience | 39.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | No Rating |
| Tsunami | Very Low |
| Volcano | Very Low |
| Avalanche | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
38 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.4.
| Feb 10, 1994 | 76 km NNW of Aleknagik, Alaska | M4.4 | 102 km | 10 km |
| May 16, 1992 | 10 km SE of Togiak, Alaska | M4.2 | 11 km | 0 km |
| Feb 9, 1994 | 79 km NW of Aleknagik, Alaska | M4.0 | 85 km | -3 km |
| Sep 25, 2001 | 68 km WSW of Egegik, Alaska | M4.0 | 149 km | 15 km |
| Jan 13, 2025 | 19 km S of Clarks Point, Alaska | M3.7 | 111 km | 2 km |
| Feb 12, 2011 | 4 km S of Portage Creek, Alaska | M3.7 | 149 km | 22 km |
| Oct 5, 2016 | 89 km NNW of Aleknagik, Alaska | M3.7 | 125 km | 8 km |
| Apr 3, 2018 | 25 km SSE of Eek, Alaska | M3.6 | 137 km | 24 km |
| Nov 21, 2000 | 22 km WSW of Ekwok, Alaska | M3.5 | 142 km | 10 km |
| Feb 9, 1994 | 48 km NNW of Aleknagik, Alaska | M3.5 | 94 km | 10 km |
| Mar 2, 2003 | 5 km N of Portage Creek, Alaska | M3.3 | 148 km | 18 km |
| Feb 11, 1994 | 49 km N of Aleknagik, Alaska | M3.3 | 114 km | -3 km |
| Mar 2, 1997 | 16 km WSW of Clarks Point, Alaska | M3.3 | 92 km | 4 km |
| Jan 20, 2015 | 53 km W of Koliganek, Alaska | M3.3 | 141 km | 0 km |
| Feb 5, 2025 | 98 km NNW of Aleknagik, Alaska | M3.2 | 120 km | 1 km |
| Sep 7, 2016 | 90 km NNW of Aleknagik, Alaska | M3.2 | 133 km | 5 km |
| Apr 13, 1995 | 11 km WSW of Portage Creek, Alaska | M3.2 | 138 km | 17 km |
| Mar 15, 2023 | 102 km SE of Akiak, Alaska | M3.2 | 146 km | 14 km |
| Aug 11, 2011 | 13 km SW of Portage Creek, Alaska | M3.1 | 142 km | 13 km |
| May 31, 2004 | 6 km WNW of Clarks Point, Alaska | M3.1 | 97 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Wildfire History
6 wildfires (100+ acres) recorded within 100 km. Largest: GECHIAK LAKE (16,919 acres, 2015).
| Year | Name | Acres Burned | Distance |
| 2015 | GECHIAK LAKE | 16,919 | 22 km |
| 2012 | SNAKE RIVER | 15,244 | 94 km |
| 1991 | TWIN | 11,889 | 14 km |
| 2022 | TUKLUNG RIVER | 6,675 | 52 km |
| 2019 | ONGIVINUK RIVER | 2,831 | 54 km |
| 2022 | ONGOKE RIVER | 1,479 | 56 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 7°F (-14°C) | 1.4 in | Coldest |
| February | 19°F (-7°C) | 1.2 in | |
| March | 21°F (-6°C) | 1.3 in | |
| April | 31°F (-0°C) | 0.9 in | Driest |
| May | 42°F (6°C) | 1.5 in | |
| June | 51°F (11°C) | 1.8 in | |
| July | 56°F (14°C) | 2.8 in | Warmest |
| August | 54°F (12°C) | 4.4 in | Wettest |
| September | 48°F (9°C) | 3.5 in | |
| October | 35°F (2°C) | 2.6 in | |
| November | 25°F (-4°C) | 2.3 in | |
| December | 16°F (-9°C) | 1.8 in |
Twin Hills has a seasonal temperature swing of 49°F / from 7°F in January to 56°F in July. Total annual precipitation is 25.5 inches, with August being the wettest month (4.4") and April the driest (0.9").