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Hartford September Weather

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

Typical Hartford September Weather 1991–2020
Average daily high	72.2 °F
Average daily low	49.0 °F
Average monthly precipitation	3.1 inches
Average monthly snow	none
Daily chance of precipitation	29.1%
Daily chance of snow	0%

Hartford September Weather Records 1893–2024
Highest temperature	97 °F	September 1, 1953
Lowest temperature	23 °F	September 24, 1976
Highest daily low	73 °F	September 7, 1959
Lowest daily high	44 °F	September 29, 1899
Hottest average high temperature	77.8 °F	2005
Coldest average high temperature	64.8 °F	1993
Most daily precipitation	5.2 inches	September 10, 1986
Most monthly precipitation	12.6 inches	1965
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	76.6	54.1	97	38
September 2	76.3	53.8	95	38
September 3	76.2	53.6	93	40
September 4	76.0	53.3	96	36
September 5	75.8	53.1	94	34
September 6	75.5	52.8	96	33
September 7	75.3	52.6	95	36
September 8	75.0	52.2	94	38
September 9	74.6	51.7	94	35
September 10	74.3	51.3	93	36
September 11	73.9	50.8	94	32
September 12	73.6	50.4	89	31
September 13	73.3	50.0	89	32
September 14	72.9	49.6	91	30
September 15	72.5	49.2	85	32
September 16	72.0	48.9	90	31
September 17	71.6	48.5	88	32
September 18	71.2	48.1	90	30
September 19	70.8	47.8	86	29
September 20	70.4	47.5	85	28
September 21	69.9	47.0	87	32
September 22	69.4	46.6	88	26
September 23	69.0	46.2	92	24
September 24	68.7	45.9	91	23
September 25	68.5	45.6	91	29
September 26	68.2	45.2	89	26
September 27	67.8	44.7	84	29
September 28	67.4	44.3	84	29
September 29	67.0	43.9	90	24
September 30	66.6	43.5	88	25

Weather Station Details

Years	Station	Coordinates
1893–2024	Hartford WWTP	location