Mason City January Weather

Averages and records for weather in Mason City, Iowa in the month of January.
Typical Mason City January Weather
1991–2020
Average daily high 24.4 °F
Average daily low 7.5 °F
Average monthly precipitation 0.9 inches
Average monthly snow 11.1 inches
Daily chance of precipitation 26.1%
Daily chance of snow 24.7%
Mason City January Weather Records
1893–2024
Highest temperature 62 °F January 26, 2002
Lowest temperature -34 °F January 31, 1899
Highest daily low 41 °F January 1, 1897
Lowest daily high -17 °F January 30, 2019
Hottest average high temperature 38.6 °F 1933
Coldest average high temperature 8.6 °F 1979
Most daily precipitation 1.8 inches January 4, 1922
Most monthly precipitation 4.6 inches 1897
Most daily snow 12.0 inches January 22, 1982
Most monthly snow 28.2 inches 1999
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
January 1 26.1 9.9 54 -24
January 2 25.9 9.7 48 -23
January 3 25.7 9.5 45 -31
January 4 25.5 9.1 47 -26
January 5 25.3 8.8 57 -31
January 6 25.1 8.5 50 -29
January 7 25.0 8.3 57 -30
January 8 25.0 8.3 57 -20
January 9 24.9 8.2 49 -26
January 10 24.8 8.0 55 -30
January 11 24.6 7.8 48 -24
January 12 24.5 7.7 48 -33
January 13 24.4 7.6 51 -26
January 14 24.3 7.5 51 -22
January 15 24.4 7.4 55 -28
January 16 24.4 7.3 44 -31
January 17 24.4 7.4 49 -24
January 18 24.4 7.4 50 -30
January 19 24.5 7.5 50 -26
January 20 24.6 7.5 52 -25
January 21 24.7 7.6 48 -29
January 22 24.8 7.7 51 -31
January 23 24.8 7.7 53 -29
January 24 24.8 7.8 59 -29
January 25 24.8 7.7 62 -25
January 26 24.8 7.6 62 -26
January 27 24.8 7.6 57 -24
January 28 24.9 7.7 51 -28
January 29 25.0 7.8 50 -28
January 30 25.2 8.0 49 -29
January 31 25.4 8.2 54 -34
Weather Station Details
Years Station Coordinates
1948–2024 Mason City Municipal Airport location
1893–1947 Mason City location