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Rock Hill September Weather

Averages and records for weather in Rock Hill, South Carolina in the month of September.

Typical Rock Hill September Weather 1991–2020
Average daily high	83.7 °F
Average daily low	63.5 °F
Average monthly precipitation	3.4 inches
Average monthly snow	none
Daily chance of precipitation	22.2%
Daily chance of snow	0%

Rock Hill September Weather Records 1899–2024
Highest temperature	106 °F	September 7, 1925
Lowest temperature	37 °F	September 30, 1967
Highest daily low	83 °F	September 1, 1912
Lowest daily high	54 °F	September 26, 1956
Hottest average high temperature	94.6 °F	1925
Coldest average high temperature	73.9 °F	1917
Most daily precipitation	5.6 inches	September 16, 1962
Most monthly precipitation	13.4 inches	1924
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	87.3	67.1	100	54
September 2	87.1	66.9	100	50
September 3	86.9	66.6	101	50
September 4	86.6	66.4	104	48
September 5	86.4	66.2	103	53
September 6	86.2	65.9	101	51
September 7	86.0	65.7	106	49
September 8	85.8	65.5	105	50
September 9	85.7	65.3	101	50
September 10	85.4	65.0	100	46
September 11	85.1	64.8	96	45
September 12	84.8	64.5	98	44
September 13	84.5	64.3	95	48
September 14	84.2	64.0	96	45
September 15	83.9	63.7	98	46
September 16	83.6	63.3	99	48
September 17	83.3	62.9	98	47
September 18	83.0	62.5	98	48
September 19	82.7	62.1	98	46
September 20	82.4	61.8	100	43
September 21	82.2	61.5	98	42
September 22	81.9	61.2	96	42
September 23	81.5	60.9	96	41
September 24	81.2	60.6	96	42
September 25	80.8	60.3	96	41
September 26	80.5	60.0	96	43
September 27	80.2	59.7	96	42
September 28	79.9	59.4	96	45
September 29	79.5	59.1	96	40
September 30	79.2	58.7	94	37

Weather Station Details

Years	Station	Coordinates
1899–2024	Winthrop University	location