The most pleasant months of the year for Petersburg are July, August and June. In Petersburg, there are 0 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Petersburg with an average high temperature of 64.0°, which ranks it as about average compared to other places in Alaska. January is the snowiest month in Petersburg with 21.9 inches of snow, and 7 months of the year have significant snowfall. Days with noticeable humidity are rare throughout the year.
Today's Weather - Petersburg, AK
9 PM PST
Scattered Rain Showers
|7 DAY FORECAST||DESCRIPTION||HIGH/LOW||WIND|
|Tonight||Scattered Rain Showers||34° / 40°||W 5 mph|
|Tuesday Night||Light Rain Likely||36° / 40°||SE 10 to 20 mph|
|Wednesday Night||Rain||37° / 40°||SE 15 mph|
|Thursday Night||Light Rain||37° / 40°||SE 10 to 15 mph|
|Friday Night||Light Rain||35° / 39°||SE 10 to 15 mph|
|Saturday Night||Light Rain||33° / 36°||SE 10 mph|
|Sunday Night||Light Snow Likely||30° / 36°||SE 10 mph|
Summer High: the July high is around 64 degrees
Winter Low: the January low is 26
Rain: averages 109 inches of rain a year
Snow: averages 77 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for the Petersburg area is 5.2 (10=best), which means it is less comfortable than most places in Alaska.
5.2 / 10
A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.
Average Monthly High and Low (°F)
Hot, Freezing, Rainy, Snowy Days: Petersburg
YOU SHOULD KNOW
Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.
Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.
Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.