Fairbanks, AK weather in August: average temperature & climate

For comparison, the hottest month in Fairbanks , July , has days with highs of 69°F (21°C) and lows of 52°F (11°C) . The coldest month, January has days with highs of 3°F (-16°C) and lows of -8°F (-22°C) . This graph shows how an average day looks like in Fairbanks in August based on historical data.

The average temperature in Fairbanks in August for a typical day ranges from a high of 65°F (18°C) to a low of 47°F (8°C) . Some would describe it as moderately chilly, humid but cool .

The wettest month in Fairbanks is July where a typical day has a 30 % chance of precipitation and gets 0.12 inches (3.0 mm) of precipitation, while the dryest month in Fairbanks is April where a typical day has a 4 % chance of precipitation and gets 0.11 inches (2.7 mm) of precipitation. These graphs show the probability of it raining/snowing in August and the amount of rainfall.

In Fairbanks in August , there’s a 28 % chance of rain on an average day. And on the average day it rains or snows, we get 0.38 in ( 9.7 mm) of precipitation. In more common terms of how much that is, some would describe it as light rain .

The average amount of time that the sky is clear or sunny (partly cloudy or less) in Fairbanks during August is 8.1 hours ( 34 % of the day). For comparison, the month with the most clear, sunny days in Fairbanks is March with an average of 10.7 hours per day while August has the shortest amount of cloud-free hours with only 8.1 hours per day. This graph shows the average amount of sunshine in Fairbanks in August based on historical data.

The day with the longest amount of daylight in Fairbanks is June 22nd with 21.9 hours while December 22nd has the shortest amount of daylight with only 3.7 hours.

The average day in Fairbanks during August has 16.6 hours of daylight, with sunrise at 5:36 AM and sunset at 10:11 PM .

In August , Fairbanks is moderately humid with an average amount of 75 % (relative humidity), which could be described as humid but cool . January has the highest relative humidity at 99 % and is the least humid in May at 63 %. This graph shows the average amount of humidity in Fairbanks throughout August based on historical data.

Historically, the wind in Fairbanks during August blows at an average speed of 8.9 mph (14.3 kph) . The windiest month is December with an average wind speed of 14.3 mph (22.9 kph) , while the calmest month is July with an average wind speed of 8.5 mph (13.7 kph) . This graph shows the average wind speed in Fairbanks in August based on historical data.

With an average high of 65°F (18°C) and a low of 47°F (8°C) , it generally feels moderately chilly, humid but cool . There might also be a small chance of rain. With that in mind, most people would dress in something moderately warm like a sweater .

We’ve collected the weather data for Fairbanks during all other months of the year too:

Where does this data come from

Weather data for Fairbanks was collected from the MERRA-2 project from NASA, which used a climate model combined with historical data from weather stations around the world to estimate what the conditions were like for every point on the Earth.

For all data based on historical data, we’ve averaged the data from the past 11 years (2010-2020). For example, for the hourly temperature at 10am, we’ve looked at the temperature at 10am on every day in August (e.g., August 1, August 2, etc. in 2010, 2011, etc.) and took the arithmetic mean. We did not smooth the data, so for example, our daily temperature line will have some randomness due to the fact that weather is random in the first place.