Freeport December Weather

Averages and records for weather in Freeport, Illinois in the month of December.
Typical Freeport December Weather
1991–2020
Average daily high 33.6 °F
Average daily low 17.9 °F
Average monthly precipitation 1.8 inches
Average monthly snow 8.5 inches
Daily chance of precipitation 28.1%
Daily chance of snow 16.3%
Freeport December Weather Records
1909–2024
Highest temperature 69 °F December 16, 2021
Lowest temperature -29 °F December 27, 1950
Highest daily low 55 °F December 4, 2001
Lowest daily high -12 °F December 22, 1989
Hottest average high temperature 42.8 °F 2015
Coldest average high temperature 19.4 °F 1983
Most daily precipitation 2.0 inches December 15, 1971
Most monthly precipitation 5.1 inches 2015
Most daily snow 13.0 inches December 12, 1909
Most monthly snow 30.2 inches 1909
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 39.1 22.6 61 -1
December 2 38.7 22.3 64 -5
December 3 38.2 21.8 66 -16
December 4 37.7 21.4 67 -4
December 5 37.2 21.0 67 -5
December 6 36.8 20.6 63 -10
December 7 36.3 20.3 62 -13
December 8 35.8 20.0 63 -8
December 9 35.5 19.8 60 -15
December 10 35.2 19.4 57 -20
December 11 34.7 19.0 60 -20
December 12 34.4 18.7 56 -12
December 13 34.1 18.4 60 -14
December 14 33.9 18.3 60 -14
December 15 33.7 18.0 58 -16
December 16 33.5 17.8 69 -16
December 17 33.2 17.5 56 -17
December 18 32.9 17.2 56 -18
December 19 32.6 16.9 55 -20
December 20 32.3 16.7 54 -18
December 21 32.1 16.5 57 -19
December 22 32.0 16.4 52 -18
December 23 31.9 16.1 55 -22
December 24 31.7 15.8 58 -22
December 25 31.4 15.6 57 -23
December 26 31.3 15.4 57 -26
December 27 31.2 15.2 55 -29
December 28 31.1 15.2 59 -23
December 29 31.0 15.0 63 -13
December 30 30.7 14.8 59 -18
December 31 30.5 14.5 57 -20
Weather Station Details
Years Station Coordinates
1973–2024 Freeport Waste Water Treatment location
1909–1973 Freeport location