Petersburg, Alaska 

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Climate in Petersburg, Alaska

Petersburg, Alaska gets 109 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Petersburg averages 77 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 96 sunny days per year in Petersburg. The US average is 205 sunny days.

Petersburg gets some kind of precipitation, on average, 233 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.


Weather Highlights

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 Petersburg is 5.2 (10=best), which means it is more comfortable than most places in Alaska.

5.2 / 10
July, August and June are the most pleasant months in Petersburg, while January and December are the least comfortable months.

Climate Averages
  Petersburg, AlaskaUnited States
  109.2 in.38.1 in.
  76.7 in.27.8 in.
  233.3 days106.2 days
  96 days205 days
  64.0°85.8°
  26.0°21.7°
  5.27
  1.44.3
  52 ft.2443 ft.
CLIMATE

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.


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. In Petersburg, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Petersburg are July, August and June.


January has the coldest nighttime temperatures for Petersburg with an average of 26.0°. This is warmer than most places in Alaska.


In Petersburg, there are 0.0 days annually when the high temperature is over 90°, which is about average compared to other places in Alaska.


In Petersburg, there are 112.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Alaska.


In Petersburg, there are 0.8 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Alaska.


October is the wettest month in Petersburg with 15.7 inches of rain, and the driest month is June with 4.9 inches. The wettest season is Winter with 38% of yearly precipitation and 16% occurs in Autumn, which is the driest season. The annual rainfall of 109.2 inches in Petersburg means that it is one of the wettest places in Alaska.


October is the rainiest month in Petersburg with 24.4 days of rain, and June is the driest month with only 16.2 rainy days. There are 233.3 rainy days annually in Petersburg, which is rainier than most places in Alaska. The rainiest season is Winter when it rains 29% of the time and the driest is Autumn with only a 21% chance of a rainy day.


An annual snowfall of 76.7 inches in Petersburg means that it is snowier than most 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.





CLIMATE MAP
  • Annual Rainfall (US Avg: 36.5")
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    ZIP CODES IN PETERSBURG, ALASKA
    99833

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