Petersburg, AK Weather
Petersburg, AK climate is cool during summer when temperatures tend to be in the 50's and very cold during winter when temperatures tend to be in the 30's.
The warmest month of the year is July with an average maximum temperature of 63.90 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 23.40 degrees Fahrenheit.
Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 16 degrees Fahrenheit, and fairly limited during winter with an average difference of 12 degrees Fahrenheit.
The annual average precipitation at Petersburg is 99.99 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is October with an average rainfall of 17.56 Inches.
Weather Data
Current Conditions
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Overcast, 41°F | Humidity: 66% | Dewpoint: 30°F |
| Wind Speed: NE 6.9 MPH G 18.4 (6 MPH G 16 KT) | Heat Index: 41°F | ||
| Barometer: 29.81 in. | Wind Chill: 36°F |
Weather Forecast
| Hi: 43°F | This afternoon: Rain...Breezy. Highs around 43. East wind 15 to 25 mph. | |
| Lo: 38°F | ||
| Hi: 42°F | Wednesday: Rain...Windy. Highs around 42. East wind 30 mph. Chance of rain 100 percent. | |
| Lo: 37°F | ||
| Hi: 40°F | Thanksgiving day: Rain showers likely. Highs around 40. Southeast wind 15 mph. Chance of showers 60 percent. | |
| Lo: 35°F | ||
| Hi: 38°F | Friday: Cloudy with a chance of rain. Highs around 38. | |
| Lo: 34°F | ||
| Hi: 38°F | Saturday: Rain likely. Highs around 38. Lows around 34. | |
| Lo: 34°F | ||
| Hi: 38°F | Sunday: Rain likely. Highs around 38. Lows around 34. | |
| Lo: 34°F | ||
| Hi: 38°F | Sunday: Rain likely. Highs around 38. Lows around 34. | |
| Lo: 34°F |
Moon, Sunrise and Sunset
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Moon Phase: Waxing Gibbous Moon | Civil Twilight: 7:04 AM AST |
Sunrise: 7:49 AM AST |
| Sunset: 3:26 PM AST |
Civil Twilight: 4:11 PM AST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 34.9 | 38.8 | 43.4 | 50.3 | 56.8 | 61.8 | 63.9 | 62.3 | 55.9 | 47.7 | 39.6 | 35.9 | 49.3 |
| Mean °F | 29.2 | 32.7 | 36.5 | 42.1 | 47.9 | 53.3 | 56.0 | 54.8 | 49.5 | 42.6 | 35.2 | 31.2 | 42.6 |
| Min °F | 23.4 | 26.5 | 29.5 | 33.8 | 39.0 | 44.8 | 48.0 | 47.2 | 43.0 | 37.5 | 30.7 | 26.5 | 35.8 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 10.64 | 8.23 | 8.26 | 6.90 | 6.30 | 4.86 | 5.22 | 6.61 | 11.34 | 17.56 | 12.83 | 11.20 | 99.99 |

