Wausau September Weather

Averages and records for weather in Wausau, Wisconsin in the month of September.
Typical Wausau September Weather
1991–2020
Average daily high 70.1 °F
Average daily low 49.3 °F
Average monthly precipitation 3.8 inches
Average monthly snow none
Daily chance of precipitation 38.3%
Daily chance of snow 0%
Wausau September Weather Records
1895–2024
Highest temperature 99 °F September 3, 2023
Lowest temperature 18 °F September 30, 1899
Highest daily low 72 °F September 5, 2023
Lowest daily high 38 °F September 29, 1899
Hottest average high temperature 77.4 °F 1908
Coldest average high temperature 62.4 °F 1965
Most daily precipitation 3.6 inches September 2, 1963
Most monthly precipitation 9.8 inches 1986
Most daily snow 2.0 inches September 26, 1942
Most monthly snow 2.0 inches 1942
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
September 1 75.2 54.3 95 33
September 2 75.1 54.1 95 33
September 3 74.9 53.8 99 33
September 4 74.7 53.6 94 37
September 5 74.4 53.4 91 35
September 6 74.0 53.0 91 34
September 7 73.7 52.7 94 37
September 8 73.2 52.3 91 36
September 9 72.8 51.8 96 35
September 10 72.4 51.4 91 31
September 11 72.0 51.0 97 30
September 12 71.6 50.7 91 32
September 13 71.2 50.3 92 31
September 14 70.7 49.9 94 35
September 15 70.2 49.5 93 30
September 16 69.8 49.1 92 34
September 17 69.4 48.7 87 28
September 18 68.9 48.3 88 33
September 19 68.5 47.9 90 31
September 20 67.9 47.4 89 27
September 21 67.3 46.9 86 30
September 22 66.9 46.5 94 29
September 23 66.6 46.2 91 25
September 24 66.3 45.9 88 28
September 25 65.9 45.6 86 23
September 26 65.5 45.2 84 28
September 27 65.2 44.7 82 28
September 28 64.7 44.3 83 24
September 29 64.3 43.9 85 23
September 30 63.8 43.4 85 18
Weather Station Details
Years Station Coordinates
1942–2024 Wausau Downtown Airport location
1895–1941 Wausau Record Herald location