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Dayton September Weather

Averages and records for weather in Dayton, Tennessee in the month of September.

Typical Dayton September Weather 1991–2020
Average daily high	81.6 °F
Average daily low	60.1 °F
Average monthly precipitation	4.9 inches
Average monthly snow	none
Daily chance of precipitation	30.4%
Daily chance of snow	0%

Dayton September Weather Records 1956–2024
Highest temperature	100 °F	September 1, 1957
Lowest temperature	30 °F	September 30, 1967
Highest daily low	73 °F	September 14, 2008
Lowest daily high	56 °F	September 23, 1995
Hottest average high temperature	90.6 °F	2019
Coldest average high temperature	76.9 °F	1989
Most daily precipitation	7.6 inches	September 17, 2004
Most monthly precipitation	13.4 inches	1977
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	85.6	64.5	100	54
September 2	85.4	64.2	96	50
September 3	85.1	64.0	99	49
September 4	84.9	63.8	97	51
September 5	84.7	63.5	96	51
September 6	84.5	63.2	97	50
September 7	84.2	63.0	96	49
September 8	83.9	62.7	97	47
September 9	83.7	62.4	96	49
September 10	83.4	62.1	94	49
September 11	83.2	61.8	96	42
September 12	82.8	61.5	93	44
September 13	82.5	61.2	95	46
September 14	82.1	60.8	98	45
September 15	81.8	60.4	94	43
September 16	81.4	59.9	95	47
September 17	81.1	59.4	95	47
September 18	80.8	58.9	95	43
September 19	80.5	58.6	96	42
September 20	80.2	58.2	92	42
September 21	79.9	57.9	91	45
September 22	79.6	57.6	96	36
September 23	79.3	57.2	92	38
September 24	78.9	56.8	92	37
September 25	78.6	56.4	93	37
September 26	78.1	56.0	92	36
September 27	77.8	55.8	90	42
September 28	77.4	55.4	92	40
September 29	77.0	55.1	90	38
September 30	76.7	54.7	94	30

Weather Station Details

Years	Station	Coordinates
1956–2024	Dayton 2SE	location