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Weather & Climate in Nondalton, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Nondalton has a cool climate with an average annual temperature of 38°F (3°C). Winters average 18°F in January while summers reach 58°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 25.0 inches (drier than the 38-inch national average). 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 474 feet.
Temperature
18°F Jan (-8°C)
58°F Jul (14°C)
| Annual Average | 37.7°F |
| 30% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 58°F (14°C) |
| Sunny Days | 269 days/yr |
Geography
| Elevation | 474 ft (144 m) |
| Area | 8.8 sq mi (22.8 km²) |
| Population Density | 11/sq mi |
| Coordinates | 59.9752°N, 154.8660°W |
| Timezone | America/Anchorage |
| County | Kenai Peninsula Borough County |
| Nearest Airport | Ted Stevens Anchorage International (ANC) 185 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 93.0 / 100 |
| Social Vulnerability | 47.1 / 100 |
| Community Resilience | 6.5 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively High |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | No Rating |
| Winter Weather | Relatively High |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Moderate |
| Coastal Flood | Very Low |
| Tsunami | Relatively Moderate |
| Volcano | Relatively Low |
| Avalanche | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
6,780 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.
| Jan 24, 2016 | 47 km ESE of Pedro Bay, Alaska | M7.1 | 94 km | 126 km |
| Jul 28, 2001 | 74 km S of Kokhanok, Alaska | M6.6 | 134 km | 132 km |
| Jul 29, 2015 | 52 km ENE of Pedro Bay, Alaska | M6.4 | 94 km | 119 km |
| Jul 9, 1998 | 73 km WNW of Ninilchik, Alaska | M6.1 | 122 km | 131 km |
| Jan 24, 2009 | Southern Alaska | M5.9 | 127 km | 98 km |
| Nov 20, 1993 | 66 km ENE of Pedro Bay, Alaska | M5.9 | 103 km | 121 km |
| May 19, 2000 | 63 km WSW of Nanwalek, Alaska | M5.8 | 150 km | 75 km |
| Feb 12, 1995 | 67 km SE of Pedro Bay, Alaska | M5.6 | 115 km | 110 km |
| Mar 2, 2017 | 48 km WNW of Nanwalek, Alaska | M5.6 | 131 km | 78 km |
| May 12, 1992 | 37 km ESE of Pedro Bay, Alaska | M5.5 | 85 km | 139 km |
| Jan 25, 2001 | 39 km WNW of Ninilchik, Alaska | M5.5 | 140 km | 83 km |
| May 19, 2005 | 54 km W of Happy Valley, Alaska | M5.4 | 121 km | 96 km |
| Oct 17, 1996 | 70 km WNW of Happy Valley, Alaska | M5.4 | 107 km | 117 km |
| Mar 9, 1990 | 44 km NW of Ninilchik, Alaska | M5.3 | 148 km | 85 km |
| Mar 10, 2013 | 31 km SSE of Pope-Vannoy Landing, Alaska | M5.2 | 83 km | 9 km |
| Sep 10, 2002 | 67 km ENE of Pedro Bay, Alaska | M5.2 | 110 km | 117 km |
| Mar 19, 1993 | 57 km WNW of Nanwalek, Alaska | M5.2 | 122 km | 102 km |
| Jan 21, 2022 | 48 km NW of Ninilchik, Alaska | M5.1 | 144 km | 115 km |
| Dec 18, 2009 | 83 km SE of Pope-Vannoy Landing, Alaska | M5.1 | 133 km | 81 km |
| Apr 19, 1991 | 48 km ENE of Pedro Bay, Alaska | M5.1 | 85 km | 134 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 9.1 m (30 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1883 | COOK INLET, AK | Explosion | 9.1 m | 8 | 104 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Iliamna (99 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Iliamna | Stratovolcano | 3,053 m (10,016 ft) | 1876 | 99 km |
| Augustine | Lava dome(s) | 1,252 m (4,108 ft) | 2006 | 106 km |
| Katmai | Stratovolcano | 2,047 m (6,716 ft) | 1912 | 189 km |
| Trident | Stratovolcano | 1,864 m (6,115 ft) | 1974 | 194 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
8 wildfires (100+ acres) recorded within 100 km. Largest: KOKTULI RIVER (296,656 acres, 2022).
| Year | Name | Acres Burned | Distance |
| 2022 | KOKTULI RIVER | 296,656 | 68 km |
| 2019 | ETHEL CREEK | 31,780 | 94 km |
| 2022 | UPPER TALARIK | 10,090 | 23 km |
| 2013 | NIKUBUMA LAKE | 9,084 | 40 km |
| 2019 | PETE ANDREWS CREEK | 5,989 | 30 km |
| 2003 | ILIAMNA | 5,295 | 21 km |
| 2013 | CURRANT CREEK | 1,986 | 62 km |
| 2016 | CHILIKADROTNA RIVER | 1,435 | 72 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 18°F (-8°C) | 1.3 in | |
| February | 16°F (-9°C) | 1.1 in | Coldest, Driest |
| March | 22°F (-6°C) | 1.3 in | |
| April | 31°F (-0°C) | 1.2 in | |
| May | 43°F (6°C) | 1.5 in | |
| June | 52°F (11°C) | 2.0 in | |
| July | 58°F (14°C) | 2.7 in | Warmest |
| August | 54°F (12°C) | 4.3 in | Wettest |
| September | 47°F (8°C) | 4.0 in | |
| October | 33°F (0°C) | 2.8 in | |
| November | 22°F (-5°C) | 1.9 in | |
| December | 17°F (-9°C) | 1.7 in |
Nondalton has a seasonal temperature swing of 42°F / from 16°F in February to 58°F in July. Total annual precipitation is 25.9 inches, with August being the wettest month (4.3") and February the driest (1.1").