Weather By Day

December Flagstaff Weather 
December Flagstaff Weather
Record High: 68°F
Normal High: 44°F
Normal Low: 17°F
Record Low: -23°F
Avg Monthly Rain: 1.83"
Rec 1 Day Rain: 3.33"
Avg Monthly Snow: 15.8"
Rec 1 Day Snow: 26.8"

Flagstaff Weather In December

The highest recorded temperature for Flagstaff Arizona for the past 61 years in December was 68 degrees Fahrenheit, most recently encountered on December 11, 1950, and the regular high is 44. The lowest reported temperature in December for Flagstaff for the past 61 years was -23 registered on December 30, 1990, and the regular low is 17.

National Weather Service historical Flagstaff December Weather data indicates that on December 3, 1978, the recorded high did not exceed 10 degrees Fahrenheit, the lowest high measured in Flagstaff in the past 61 years. The Weather Service additionally shows that on December 6, 1966, the low for the day did not drop below 42 degrees, the highest low temperature in Flagstaff in the last 61 years.

Historical weather data accumulated by the National Weather Service shows that the average daily high temperature in Flagstaff on December First is 47 degrees Fahrenheit and the average high on the last day of December is 40 degrees. The average recorded low temperature in Flagstaff on December First is 20 degrees Fahrenheit and the average low on the last day of December is 14 degrees.

Flagstaff typically receives an average of 1.83 inches of precipitation during the month. The most precipitation measured in a single day, as indicated by December Flagstaff Weather data, was 3.33 inches on December 29, 2004. Flagstaff receives an average of 15.8 inches of snow in December.On December 13, 1967 Flagstaff received 26.8 inches of rain, the greatest snowfall measured in a single day in December.