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Whitewater September Weather

Averages and records for weather in Whitewater, Wisconsin in the month of September.

Typical Whitewater September Weather 1991–2020
Average daily high	73.8 °F
Average daily low	50.1 °F
Average monthly precipitation	3.5 inches
Average monthly snow	none
Daily chance of precipitation	35.0%
Daily chance of snow	0%

Whitewater September Weather Records 1941–2024
Highest temperature	100 °F	September 2, 1953
Lowest temperature	26 °F	September 27, 1991
Highest daily low	78 °F	September 12, 1982
Lowest daily high	43 °F	September 29, 1984
Hottest average high temperature	80.3 °F	1978
Coldest average high temperature	65.6 °F	1993
Most daily precipitation	4.1 inches	September 9, 1985
Most monthly precipitation	10.9 inches	1961
Most daily snow	none	-
Most monthly snow	none	-

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
September 1	78.1	55.0	100	38
September 2	77.8	54.7	100	39
September 3	77.7	54.4	95	38
September 4	77.6	54.2	92	35
September 5	77.4	54.0	96	39
September 6	77.1	53.8	94	34
September 7	76.9	53.5	94	34
September 8	76.5	53.2	97	38
September 9	76.2	52.7	96	36
September 10	75.9	52.4	94	34
September 11	75.5	51.9	93	33
September 12	75.2	51.5	93	29
September 13	74.9	51.1	91	32
September 14	74.5	50.8	91	34
September 15	74.0	50.3	91	31
September 16	73.6	50.0	89	32
September 17	73.3	49.6	90	37
September 18	72.8	49.2	91	34
September 19	72.4	48.8	89	32
September 20	72.0	48.4	89	27
September 21	71.5	48.0	90	32
September 22	70.9	47.5	89	27
September 23	70.5	47.1	90	27
September 24	70.3	46.9	93	27
September 25	70.1	46.6	90	34
September 26	69.7	46.2	91	32
September 27	69.3	45.7	90	26
September 28	69.0	45.3	89	28
September 29	68.6	44.9	94	27
September 30	68.2	44.6	90	27

Weather Station Details

Years	Station	Coordinates
1941–2024	Whitewater	location