August Weather in Alaska United States

We show the August climate in Alaska by comparing the average August weather in 3 representative places: Anchorage, Juneau International Airport, and Fairbanks.

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Anchorage
United States
Fairbanks
United States
Map

Average High and Low Temperature in August in Alaska

Average High and Low Temperature in August in AlaskaAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313125°F25°F30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°FJulSep54524967656251506563594370474841FairbanksFairbanksJuneau International AirportJuneau International AirportAnchorageAnchorage
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.

Anchorage in August

Average Hourly Temperature in Anchorage in AugustAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJulSepvery coldcoldcoolcoldcomfortable

Juneau International Airport in August

Average Hourly Temperature in Juneau International Airport in AugustAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJulSepcoldcoolvery cold

Fairbanks in August

Average Hourly Temperature in Fairbanks in AugustAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJulSepvery coldcoldcoolcoolcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies in August in Alaska

Chance of Clearer Skies in August in AlaskaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%JulSep414342303026373839FairbanksFairbanksJuneau International AirportJuneau International Airport
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).

Daily Chance of Precipitation in August in Alaska

Daily Chance of Precipitation in August in AlaskaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%JulSep3334365156643027FairbanksFairbanksJuneau International AirportJuneau International Airport
The percentage of days in which precipitation is observed, excluding trace quantities.

Average Monthly Rainfall in August in Alaska

Average Monthly Rainfall in August in AlaskaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 in16 in16 inJulSep2.73.03.16.98.611.12.11.8FairbanksFairbanksJuneau International AirportJuneau International AirportAnchorageAnchorage
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.

Average Monthly Snowfall in August in Alaska

Average Monthly Snowfall in August in AlaskaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 inJulSep0.1FairbanksFairbanksJuneau International AirportJuneau International AirportAnchorageAnchorage
The average snowfall accumulated over the course of a sliding 31-day period centered on the day in question.

Hours of Daylight in August in Alaska

Hours of Daylight in August in AlaskaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr0 hr4 hr4 hr8 hr8 hr12 hr12 hr16 hr16 hr20 hr20 hr24 hr24 hrJulSep17.015.814.318.1FairbanksFairbanksJuneau International AirportJuneau International AirportAnchorageAnchorage
The number of hours during which the Sun is at least partly above the horizon.

Chance of Muggy Conditions in August in Alaska

Chance of Muggy Conditions in August in AlaskaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%JulSepFairbanksFairbanks
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).

Average Wind Speed in August in Alaska

Average Wind Speed in August in AlaskaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mphJulSep4.54.64.94.95.25.9FairbanksFairbanksJuneau International AirportJuneau International AirportAnchorageAnchorage
The average of mean hourly wind speeds at 10 meters above the ground.

Tourism Score in August in Alaska

Tourism Score in August in AlaskaAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313100224466881010JulSep4.33.62.22.72.31.43.6FairbanksFairbanksJuneau International AirportJuneau International AirportAnchorageAnchorage
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score in August in Alaska

Beach/Pool Score in August in AlaskaAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313100224466881010JulSep0.20.1FairbanksFairbanksJuneau International AirportJuneau International Airport
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season in August in Alaska

Growing Season in August in AlaskaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%20%20%40%40%60%60%80%80%100%100%JulSepFairbanksFairbanksJuneau International AirportJuneau International AirportAnchorageAnchorage
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days in August in Alaska

Growing Degree Days in August in AlaskaAug1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131400°F400°F600°F600°F800°F800°F1,000°F1,000°F1,200°F1,200°FJulSepFairbanksFairbanksJuneau International AirportJuneau International AirportAnchorageAnchorage
The average growing degree days accumulated over the course of August, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Water Temperature in August in Alaska

Average Water Temperature in August in AlaskaAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313148°F48°F49°F49°F50°F50°F51°F51°F52°F52°F53°F53°F54°F54°F55°F55°F56°F56°FJulSep5455545555Juneau International AirportJuneau International Airport
The daily average wide-area surface water temperature.

Average Daily Incident Shortwave Solar Energy in August in Alaska

Average Daily Incident Shortwave Solar Energy in August in AlaskaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 kWh0.0 kWh0.5 kWh0.5 kWh1.0 kWh1.0 kWh1.5 kWh1.5 kWh2.0 kWh2.0 kWh2.5 kWh2.5 kWh3.0 kWh3.0 kWh3.5 kWh3.5 kWh4.0 kWh4.0 kWh4.5 kWh4.5 kWh5.0 kWh5.0 kWh5.5 kWh5.5 kWh6.0 kWh6.0 kWhJulSep4.64.13.34.23.72.93.1FairbanksFairbanksJuneau International AirportJuneau International AirportAnchorageAnchorage
The average daily shortwave solar energy reaching the ground per square meter.

This report illustrates the typical weather for Anchorage, Juneau International Airport, and Fairbanks, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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