Alta December Weather

Averages and records for weather in Alta, Utah in the month of December.
Typical Alta December Weather
1991–2020
Average daily high 30.2 °F
Average daily low 14.1 °F
Average monthly precipitation 5.6 inches
Average monthly snow 74.5 inches
Daily chance of precipitation 46.4%
Daily chance of snow 45.3%
Alta December Weather Records
1905–2024
Highest temperature 59 °F December 14, 1952
Lowest temperature -31 °F December 10, 1978
Highest daily low 36 °F December 9, 1996
Lowest daily high -12 °F December 8, 1978
Hottest average high temperature 41.6 °F 1980
Coldest average high temperature 18.1 °F 1978
Most daily precipitation 5.0 inches December 25, 2002
Most monthly precipitation 25.5 inches 1983
Most daily snow 38.0 inches December 2, 1982
Most monthly snow 244.5 inches 1983
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
December 1 33.2 16.6 52 -3
December 2 32.8 16.4 52 -7
December 3 32.5 16.1 51 -7
December 4 32.2 15.7 52 -4
December 5 31.8 15.4 48 -13
December 6 31.5 15.1 49 -13
December 7 31.3 14.9 51 -14
December 8 31.1 14.8 49 -27
December 9 31.0 14.7 56 -30
December 10 30.9 14.6 54 -31
December 11 30.8 14.5 55 -13
December 12 30.7 14.4 51 -13
December 13 30.6 14.3 53 -9
December 14 30.5 14.2 59 -9
December 15 30.3 14.1 55 -8
December 16 30.2 14.0 52 -5
December 17 30.1 13.9 54 -5
December 18 30.0 13.8 58 -10
December 19 30.0 13.8 54 -4
December 20 30.1 13.9 47 -9
December 21 30.1 13.8 51 -15
December 22 30.1 13.8 49 -20
December 23 30.0 13.7 51 -25
December 24 30.1 13.7 55 -9
December 25 30.0 13.7 50 -7
December 26 30.1 13.7 54 -2
December 27 30.1 13.8 56 -10
December 28 30.1 13.8 52 -8
December 29 30.1 13.8 49 -10
December 30 30.0 13.8 53 -20
December 31 30.1 13.9 52 -20
Weather Station Details
Years Station Coordinates
1905–2024 Alta location