Zip 99833 (Petersburg, AK) Climate

Petersburg, AK has a humid subarctic climate, with mild summers and cold winters. Summers in Petersburg are cool and damp, with temperatures rarely exceeding 70°F. Winters are cold and snowy, with temperatures often dropping below 0°F. Precipitation is spread evenly throughout the year, with snowfall occurring between October and April. The area experiences frequent gusts of winds from the Gulf of Alaska during the winter months, bringing blizzards and high snowfall accumulations to the region.

Petersburg (zip 99833), Alaska gets 109 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Petersburg (zip 99833) averages 77 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 92 sunny days per year in Petersburg (zip 99833). The US average is 205 sunny days.

Petersburg (zip 99833) 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 the 99833 zip code is 5.2 (10=best), which means it is more comfortable than most places in Alaska.

7.5 Summer - 3.2 Winter

July, August and June are the most pleasant months in the 99833 zip code, while January and December are the least comfortable months.

Climate	Petersburg, Alaska	United States
	Unlock	38.1 in.
	76.7 in.	Unlock
	Unlock	106.2 days
	92 days	Unlock
	64.0°	85.8°
	Unlock	21.7°
	5.2	Unlock
	Unlock	4.3
	1968 ft.	Unlock

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 the 99833 zip code with an average high temperature of 64.0°, which ranks it as about average compared to other places in Alaska. In the 99833 zip code, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 99833 zip code are July, August and June.

In the 99833 zip code, there are 0.0 days annually when the high temperature is over 90°, which is about average compared to other places in Alaska.

January has the coldest nighttime temperatures for the 99833 zip code with an average of 26.0°. This is warmer than most places in Alaska.

In the 99833 zip code, there are 112.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Alaska.

In the 99833 zip code, there are 0.8 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Alaska.

Humidity is low in the 99833 zip code, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.

October is the wettest month in the 99833 zip code 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 the 99833 zip code means that it is one of the wettest places in Alaska.

October is the rainiest month in the 99833 zip code 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 the 99833 zip code, 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 the 99833 zip code means that it is snowier than most places in Alaska. January is the snowiest month in the 99833 zip code with 21.9 inches of snow, and 7 months of the year have significant snowfall.

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