Riverton December Weather

Averages and records for weather in Riverton, Wyoming in the month of December.
Typical Riverton December Weather
1991–2020
Average daily high 30.8 °F
Average daily low 4.9 °F
Average monthly precipitation 0.3 inches
Average monthly snow 5.3 inches
Daily chance of precipitation 13.3%
Daily chance of snow 14.9%
Riverton December Weather Records
1907–2024
Highest temperature 65 °F December 2, 1995
Lowest temperature -46 °F December 23, 1983
Highest daily low 42 °F December 23, 1964
Lowest daily high -23 °F December 22, 1990
Hottest average high temperature 48.1 °F 1933
Coldest average high temperature 11.7 °F 1983
Most daily precipitation 0.7 inches December 2, 1982
Most monthly precipitation 1.0 inches 1955
Most daily snow 15.0 inches December 9, 1985
Most monthly snow 19.0 inches 1985
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 36.4 10.7 60 -22
December 2 35.9 10.4 65 -24
December 3 35.4 10.0 63 -30
December 4 34.9 9.5 57 -25
December 5 34.4 9.1 61 -34
December 6 34.0 8.7 63 -41
December 7 33.6 8.4 63 -41
December 8 33.2 8.1 57 -38
December 9 32.9 7.8 63 -40
December 10 32.5 7.3 65 -37
December 11 32.1 7.0 60 -37
December 12 31.7 6.6 61 -35
December 13 31.4 6.1 60 -32
December 14 31.1 5.8 59 -31
December 15 30.8 5.6 60 -30
December 16 30.6 5.2 59 -29
December 17 30.3 5.1 62 -31
December 18 30.0 4.8 64 -41
December 19 29.8 4.5 58 -45
December 20 29.6 4.3 54 -44
December 21 29.5 4.1 57 -40
December 22 29.3 3.9 58 -44
December 23 29.1 3.7 57 -46
December 24 28.9 3.6 56 -43
December 25 28.7 3.3 56 -33
December 26 28.6 3.3 57 -30
December 27 28.5 3.2 59 -29
December 28 28.3 3.1 53 -26
December 29 28.1 2.9 54 -32
December 30 27.9 2.8 55 -42
December 31 27.8 2.6 59 -46
Weather Station Details
Years Station Coordinates
1907–2024 Riverton location