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River Falls September Weather

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

Typical River Falls September Weather 1991–2020
Average daily high	71.6 °F
Average daily low	49.2 °F
Average monthly precipitation	3.3 inches
Average monthly snow	none
Daily chance of precipitation	29.3%
Daily chance of snow	0%

River Falls September Weather Records 1918–2024
Highest temperature	103 °F	September 11, 1931
Lowest temperature	22 °F	September 28, 1942
Highest daily low	75 °F	September 13, 1990
Lowest daily high	41 °F	September 26, 1926
Hottest average high temperature	79.5 °F	1998
Coldest average high temperature	62.0 °F	1965
Most daily precipitation	4.3 inches	September 1, 1942
Most monthly precipitation	10.5 inches	1942
Most daily snow	0.4 inches	September 28, 1945
Most monthly snow	0.4 inches	1945

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	76.5	54.4	93	34
September 2	76.3	54.1	95	37
September 3	76.2	53.9	98	31
September 4	76.0	53.6	99	35
September 5	75.7	53.4	100	36
September 6	75.4	53.2	97	37
September 7	75.1	53.0	100	34
September 8	74.7	52.5	93	35
September 9	74.3	52.0	98	32
September 10	73.9	51.6	91	33
September 11	73.5	51.2	103	30
September 12	73.1	50.7	96	31
September 13	72.7	50.3	93	29
September 14	72.3	49.9	93	28
September 15	71.9	49.5	93	28
September 16	71.4	49.1	95	28
September 17	71.0	48.6	92	31
September 18	70.5	48.2	89	23
September 19	70.1	47.7	92	26
September 20	69.6	47.3	92	29
September 21	69.0	46.8	91	27
September 22	68.5	46.3	90	23
September 23	68.1	46.0	91	27
September 24	67.7	45.6	87	27
September 25	67.5	45.2	88	24
September 26	67.0	44.8	92	25
September 27	66.6	44.3	86	27
September 28	66.3	43.9	85	22
September 29	65.8	43.5	80	25
September 30	65.3	43.1	89	25

Weather Station Details

Years	Station	Coordinates
1918–2024	River Falls	location