Yukon-Koyukuk Census Area, AK Climate

Yukon-Koyukuk, AK County has a subarctic climate with long, cold winters and short, warm summers. The area typically receives about 10 inches of precipitation each year, mostly in the form of snow. Temperatures can reach lows of -50 degrees Fahrenheit during the winter months and highs of 86 degrees Fahrenheit during the summer months. The area is known for its extreme weather changes throughout the year, with temperatures sometimes changing by up to 40 degrees in one day.

Yukon-Koyukuk Census Area County, Alaska gets 15 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Yukon-Koyukuk Census Area County averages 67 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 153 sunny days per year in Yukon-Koyukuk Census Area County. The US average is 205 sunny days.

Yukon-Koyukuk Census Area County gets some kind of precipitation, on average, 113 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 70 degrees
Winter Low: the January low is -17
Rain: averages 15 inches of rain a year
Snow: averages 67 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Yukon-Koyukuk County is 4.8 (10=best), which means it is less comfortable than most places in Alaska.

8.3 Summer - 1.7 Winter

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

Climate	Yukon-Koyukuk Census Area, Alaska	United States
	14.7 in.	38.1 in.
	67.0 in.	27.8 in.
	112.7 days	106.2 days
	153 days	205 days
	70.4°	85.8°
	-17.0°	21.7°
	4.8	7
	1.4	4.3
	1250 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 Yukon-Koyukuk County with an average high temperature of 70.4°, which ranks it as warmer than most places in Alaska. In Yukon-Koyukuk County, there are 1 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Yukon-Koyukuk County are July, June and August.

In Yukon-Koyukuk County, there are 0.1 days annually when the high temperature is over 90°, which is hotter than most places in Alaska.

January has the coldest nighttime temperatures for Yukon-Koyukuk County with an average of -17.0°. This is colder than most places in Alaska.

In Yukon-Koyukuk County, there are 239.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Alaska.

In Yukon-Koyukuk County, there are 116.5 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Alaska.

Humidity is low in Yukon-Koyukuk County, 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.

August is the wettest month in Yukon-Koyukuk County with 2.5 inches of rain, and the driest month is April with 0.5 inches. The wettest season is Autumn with 43% of yearly precipitation and 13% occurs in Summer, which is the driest season. The annual rainfall of 14.7 inches in Yukon-Koyukuk County means that it is drier than most places in Alaska.

August is the rainiest month in Yukon-Koyukuk County with 14.3 days of rain, and April is the driest month with only 5.4 rainy days. There are 112.7 rainy days annually in Yukon-Koyukuk County, which is less rainy than most places in Alaska. The rainiest season is Autumn when it rains 34% of the time and the driest is Summer with only a 17% chance of a rainy day.

An annual snowfall of 67.0 inches in Yukon-Koyukuk County means that it is about average compared to other places in Alaska. December is the snowiest month in Yukon-Koyukuk County with 12.2 inches of snow, and 9 months of the year have significant snowfall.

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