Matanuska-Susitna Borough, AK Climate

Matanuska-Susitna, AK County has a subarctic climate with long, cold and snowy winters and short, cool summers. The area experiences a large amount of snowfall each winter, receiving an average of over 70 inches annually. Summers are characterized by mild temperatures with highs typically reaching into the mid-60s Fahrenheit during the day. Precipitation is generally light throughout the year, but can reach up to 10 inches in some months. Winters usually bring temperatures below 0 degrees Fahrenheit and can bring extreme cold spells that last for days at a time. Overall, the climate in Matanuska-Susitna is generally cold and snowy with occasional warm respites during the summer months.

Matanuska-Susitna Borough County, Alaska gets 21 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Matanuska-Susitna Borough County averages 83 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 129 sunny days per year in Matanuska-Susitna Borough County. The US average is 205 sunny days.

Matanuska-Susitna Borough County gets some kind of precipitation, on average, 107 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 68 degrees
Winter Low: the January low is 5
Rain: averages 21 inches of rain a year
Snow: averages 83 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Matanuska-Susitna County is 5.4 (10=best), which means it is more comfortable than most places in Alaska.

8.3 Summer - 2.7 Winter

July, June and August are the most pleasant months in Matanuska-Susitna County, while December and January are the least comfortable months.

Climate	Matanuska-Susitna Borough, Alaska	United States
	20.9 in.	38.1 in.
	83.2 in.	27.8 in.
	106.8 days	106.2 days
	129 days	205 days
	67.7°	85.8°
	5.3°	21.7°
	5.4	7
	1.3	4.3
	2913 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 Matanuska-Susitna County with an average high temperature of 67.7°, which ranks it as warmer than most places in Alaska. In Matanuska-Susitna County, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Matanuska-Susitna County are July, June and August.

In Matanuska-Susitna County, 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 Matanuska-Susitna County with an average of 5.3°. This is about average compared to other places in Alaska.

In Matanuska-Susitna County, there are 205.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Alaska.

In Matanuska-Susitna County, there are 41.5 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Alaska.

Humidity in Matanuska-Susitna County is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are July, August and June.

September is the wettest month in Matanuska-Susitna County with 3.4 inches of rain, and the driest month is March with 0.7 inches. The wettest season is Winter with 34% of yearly precipitation and 11% occurs in Summer, which is the driest season. The annual rainfall of 20.9 inches in Matanuska-Susitna County means that it is about average compared to other places in Alaska.

August is the rainiest month in Matanuska-Susitna County with 14.1 days of rain, and April is the driest month with only 4.7 rainy days. There are 106.8 rainy days annually in Matanuska-Susitna County, which is less rainy than most places in Alaska. The rainiest season is Autumn when it rains 33% of the time and the driest is Summer with only a 17% chance of a rainy day.

An annual snowfall of 83.2 inches in Matanuska-Susitna County means that it is snowier than most places in Alaska. December is the snowiest month in Matanuska-Susitna County with 19.6 inches of snow, and 7 months of the year have significant snowfall.

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