Weather By Day

December Weather In Great Falls  
December Great Falls Weather
Record High: 69°F
Normal High: 34°F
Normal Low: 14°F
Record Low: -38°F
Avg Monthly Rain: 0.67"
Rec 1 Day Rain: 0.7"
Avg Monthly Snow: 8.1"
Rec 1 Day Snow: 14"

Great Falls Weather In December

The highest recorded temperature in December for Great Falls Montana for the past 73 years was 69 degrees Fahrenheit, most recently measured on December 11, 1939, and the typical high is 34. In the last 73 years the highest reported temperature in Great Falls for December was -38 most recently encountered on December 3, 1919, while the regular low temperature for a given day during the month is 14.

US National Weather Service historical Great Falls December Weather data records that on December 17, 1924, the high temperature did not exceed -24 degrees Fahrenheit, the lowest high measured in Great Falls in the past 73 years. Weather Service records additionally indicate that on December 12, 1924, the low for the day was not measured below 51 degrees, the highest low temperature recorded in Great Falls in the last 73 years.

National Weather Service data shows that the high temperature in Great Falls on December First averages 40 degrees Fahrenheit and the high on the final day of December averages 34 degrees. The low recorded temperature in Great Falls on December First averages 21 degrees Fahrenheit and the low temperature on the final day of December averages 16 degrees.

Great Falls receives an average of 0.67 inches of precipitation during December. According to December Great Falls Weather records, the most rain measured in a single day in December was 0.7 inches on December 30, 1917. Great Falls receives an average of 8.1 inches of snow in December.On December 12, 1932 Great Falls received 14 inches of rain, the greatest snowfall measured in a single day in December.