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Petersburg, AK
Full City Profile · Alaska · Wrangell City and Borough County
3.3
/5.0
B
Good
3,346
Population
76/sq mi density
$76,466
Median Income
$41,952 per capita
$298,500
Home Value
$366,597 Zillow
$1,208
Median Rent
29.3% income on rent
43°F
Avg Temperature
166 sunny days/yr
314
Violent Crime/100K
2,766 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.5 / 5.0
$76,466 median income, 2.1% unemployment
A
Affordability
4.5 / 5.0
$298,500 home value, $1,208/mo rent
F
Safety
1.0 / 5.0
314 violent crimes/100K
B
Education
3.2 / 5.0
27.1% bachelor's degree or higher
Petersburg has a cool climate with an average annual temperature of 43°F (6°C). Winters average 31°F in January while summers reach 56°F in July. The area gets 166 sunny days per year. Annual precipitation totals 110.2 inches. The area receives 85.6 inches of snow annually. Air quality is rated Good with a median AQI of 21.
Temperature
31°F Jan (-1°C)
56°F Jul (14°C)
| Annual Average | 43.0°F |
| 20% below US avg | |
| January Average | 31°F (-1°C) |
| July Average | 56°F (14°C) |
| Sunny Days | 166 days/yr |
Geography
| Elevation | 700 ft (213 m) |
| Area | 44.2 sq mi (114.4 km²) |
| Population Density | 76/sq mi |
| Coordinates | 56.7569°N, 132.8749°W |
| Timezone | America/Anchorage |
| County | Wrangell City and Borough County |
| Nearest Airport | Ketchikan International (KTN) 107 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 0.1 / 100 |
| Social Vulnerability | 67.6 / 100 |
| Community Resilience | 31.6 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | No Rating |
| Strong Wind | No Rating |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Coastal Flood | No Rating |
| Volcano | Very Low |
| Avalanche | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 470.0 m (1,542 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2025 | TRACY ARM, AK | Meteorological | 470.0 m | — | 121 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Hoodoo Mountain (97 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hoodoo Mountain | Subglacial | 1,850 m (6,070 ft) | -7050 | 97 km |
| Iskut-Unuk River Cones | Pyroclastic cone(s) | 1,880 m (6,168 ft) | 1800 | 143 km |
| Spectrum Range | Shield | 2,430 m (7,972 ft) | Unknown | 152 km |
| Tlevak Strait-Suemez Is. | Volcanic field | 50 m (164 ft) | Unknown | 170 km |
| Edziza | Stratovolcano | 2,786 m (9,140 ft) | 950 | 172 km |
| Edgecumbe | Stratovolcano(es) | 970 m (3,182 ft) | -2220 | 178 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 11.8 in | |
| February | 31°F (-0°C) | 9.3 in | |
| March | 34°F (1°C) | 8.5 in | |
| April | 40°F (4°C) | 7.2 in | |
| May | 47°F (8°C) | 6.8 in | |
| June | 53°F (12°C) | 5.6 in | Driest |
| July | 56°F (14°C) | 5.8 in | Warmest |
| August | 56°F (13°C) | 8.1 in | |
| September | 50°F (10°C) | 12.6 in | |
| October | 42°F (6°C) | 18.2 in | Wettest |
| November | 34°F (1°C) | 12.9 in | |
| December | 30°F (-1°C) | 12.3 in | Coldest |
Petersburg has a seasonal temperature swing of 26°F / from 30°F in December to 56°F in July. Total annual precipitation is 119.1 inches, with October being the wettest month (18.2") and June the driest (5.6").