Petersville, AK
Full City Profile · Alaska · Matanuska-Susitna Borough County
5.0
/5.0
A+
Excellent
42
Population
0/sq mi density
36°F
Avg Temperature
A+
Overall
5.0 / 5.0
Strong
A+
Education
5.0 / 5.0
0.0% bachelor's degree or higher
Petersville has a cool climate with an average annual temperature of 36°F (2°C). Winters average 15°F in January while summers reach 60°F in July. Annual precipitation totals 31.9 inches. Air quality is rated Good with a median AQI of 15.
Temperature
15°F Jan (-10°C)
60°F Jul (15°C)
| Annual Average | 36.3°F |
| 33% below US avg | |
| January Average | 15°F (-10°C) |
| July Average | 60°F (15°C) |
Geography
| Elevation | 3,150 ft (960 m) |
| Area | 462.7 sq mi (1,198.4 km²) |
| Population Density | 0/sq mi |
| Coordinates | 62.4535°N, 150.8841°W |
| Timezone | America/Anchorage |
| County | Matanuska-Susitna Borough County |
| Nearest Airport | Ted Stevens Anchorage International (ANC) 93 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 15.0 |
| Rating | Good |
| Good Days % | 92.2% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| PM2.5 (Fine Particles) | 4.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 93.3 / 100 |
| Social Vulnerability | 17.2 / 100 |
| Community Resilience | 3.7 / 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 | Relatively Low |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Relatively Moderate |
| Coastal Flood | No Rating |
| Tsunami | Very Low |
| Volcano | Very Low |
| Avalanche | Very High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
1 volcano within 200 km. Closest: Spurr (147 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Spurr | Stratovolcano | 3,374 m (11,070 ft) | 1992 | 147 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 15°F (-10°C) | 1.7 in | Coldest |
| February | 20°F (-7°C) | 1.7 in | |
| March | 25°F (-4°C) | 1.2 in | Driest |
| April | 37°F (3°C) | 1.4 in | |
| May | 48°F (9°C) | 2.1 in | |
| June | 57°F (14°C) | 1.8 in | |
| July | 60°F (15°C) | 4.0 in | Warmest |
| August | 56°F (13°C) | 4.9 in | |
| September | 47°F (8°C) | 5.7 in | Wettest |
| October | 34°F (1°C) | 2.9 in | |
| November | 21°F (-6°C) | 2.4 in | |
| December | 17°F (-8°C) | 2.1 in |
Petersville has a seasonal temperature swing of 45°F / from 15°F in January to 60°F in July. Total annual precipitation is 31.9 inches, with September being the wettest month (5.7") and March the driest (1.2").