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St. George May Weather

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

Typical St. George May Weather 1991–2020
Average daily high	86.3 °F
Average daily low	57.0 °F
Average monthly precipitation	0.3 inches
Average monthly snow	none
Daily chance of precipitation	10.0%
Daily chance of snow	0%

St. George May Weather Records 1893–2024
Highest temperature	108 °F	May 28, 2003
Lowest temperature	20 °F	May 3, 1899
Highest daily low	77 °F	May 28, 2003
Lowest daily high	51 °F	May 1, 1915
Hottest average high temperature	94.1 °F	1984
Coldest average high temperature	76.3 °F	1917
Most daily precipitation	1.5 inches	May 11, 1958
Most monthly precipitation	2.1 inches	2019
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
May 1	81.8	52.2	97	25
May 2	82.2	52.6	99	26
May 3	82.6	53.0	102	20
May 4	83.0	53.4	100	27
May 5	83.2	53.8	99	31
May 6	83.5	54.0	99	28
May 7	83.8	54.3	99	33
May 8	84.1	54.6	99	31
May 9	84.2	54.8	99	32
May 10	84.5	55.0	100	28
May 11	84.7	55.4	102	32
May 12	84.9	55.6	105	31
May 13	85.2	55.9	105	36
May 14	85.5	56.2	103	34
May 15	85.9	56.6	101	32
May 16	86.2	56.9	100	33
May 17	86.6	57.3	100	30
May 18	87.0	57.7	99	35
May 19	87.4	58.0	99	31
May 20	87.8	58.3	103	30
May 21	88.2	58.6	100	34
May 22	88.6	59.0	103	33
May 23	89.0	59.3	104	37
May 24	89.3	59.6	104	39
May 25	89.6	60.0	104	37
May 26	89.8	60.3	102	38
May 27	90.1	60.5	104	40
May 28	90.4	60.8	108	37
May 29	90.6	61.1	105	38
May 30	90.9	61.3	107	40
May 31	91.2	61.5	108	38

Weather Station Details

Years	Station	Coordinates
1893–2024	St. George	location