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St. George September Weather

Averages and records for weather in St. George, Utah in the month of September.

Typical St. George September Weather 1991–2020
Average daily high	93.4 °F
Average daily low	62.8 °F
Average monthly precipitation	0.5 inches
Average monthly snow	none
Daily chance of precipitation	7.6%
Daily chance of snow	0%

St. George September Weather Records 1893–2024
Highest temperature	112 °F	September 7, 2022
Lowest temperature	25 °F	September 21, 1895
Highest daily low	81 °F	September 5, 2007
Lowest daily high	59 °F	September 24, 1900
Hottest average high temperature	97.8 °F	1995
Coldest average high temperature	77.2 °F	1916
Most daily precipitation	1.8 inches	September 2, 2023
Most monthly precipitation	4.2 inches	1939
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	97.7	68.2	109	45
September 2	97.4	67.8	109	46
September 3	97.1	67.5	110	43
September 4	96.8	67.1	109	42
September 5	96.4	66.7	110	38
September 6	96.2	66.3	110	39
September 7	95.9	66.0	112	39
September 8	95.5	65.6	108	38
September 9	95.2	65.2	107	41
September 10	94.9	64.7	105	38
September 11	94.5	64.3	106	40
September 12	94.2	63.8	105	36
September 13	93.9	63.4	105	33
September 14	93.7	63.1	104	34
September 15	93.4	62.7	103	36
September 16	93.1	62.3	103	33
September 17	92.8	61.9	104	33
September 18	92.4	61.5	104	34
September 19	92.0	61.1	103	33
September 20	91.6	60.6	103	33
September 21	91.2	60.2	103	25
September 22	90.7	59.8	103	31
September 23	90.2	59.3	101	29
September 24	89.7	58.8	100	31
September 25	89.4	58.3	103	31
September 26	89.1	57.8	100	33
September 27	88.7	57.4	102	32
September 28	88.2	56.9	100	31
September 29	87.8	56.5	100	31
September 30	87.5	56.1	99	32

Weather Station Details

Years	Station	Coordinates
1893–2024	St. George	location