Weather By Day

August Great Falls Weather 
August Great Falls Weather
Record High: 106°F
Normal High: 81°F
Normal Low: 50°F
Record Low: 34°F
Avg Monthly Rain: 1.65"
Rec 1 Day Rain: 2.72"
Avg Monthly Snow: 0.1"
Rec 1 Day Snow: 0.2"

Great Falls Weather In August

The hottest August day in Great Falls for the past 73 years was 106 degrees Fahrenheit, most recently encountered on August 5, 1892, and the typical high is 81. The coldest day reported in Great Falls in August for the past 73 years was 34 on August 31, 1930, and the regular low is 50.

According to National Weather Service Great Falls August Weather data, on August 25, 1933, the recorded high temperature did not exceed 51 degrees Fahrenheit, the lowest high measured in Great Falls in the past 73 years. NWS weather data additionally shows that on August 1, 1900, the lowest recorded temperature on that day did not drop below 72 degrees, the highest low measured in Great Falls in the last 73 years.

Historical weather data accumulated by the National Weather Service shows that the average daily high temperature in Great Falls on August First is 85 degrees Fahrenheit and the average high on the last day of August is 78 degrees. The low recorded temperature in Great Falls on August First averages 56 degrees Fahrenheit and the low temperature on the final day of August averages 50 degrees.

Great Falls usually receives an average of 1.65 inches of rain during August. The most precipitation measured in a single day, as indicated by August Great Falls Weather data, was 2.72 inches on August 22, 1933. Great Falls receives an average of 0.1 inches of snow in August.On August 18, 1924 Great Falls received 0.2 inches of precipitation, the highest snowfall recorded in a single day in August.