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Summit May Weather

Averages and records for weather in Summit, South Dakota in the month of May.

Typical Summit May Weather 1991–2020
Average daily high	67.6 °F
Average daily low	42.8 °F
Average monthly precipitation	3.1 inches
Average monthly snow	0.1 inches
Daily chance of precipitation	34.4%
Daily chance of snow	0.22%

Summit May Weather Records 1956–2024
Highest temperature	95 °F	May 1, 1959
Lowest temperature	15 °F	May 3, 2005
Highest daily low	72 °F	May 3, 1985
Lowest daily high	33 °F	May 2, 1967
Hottest average high temperature	75.5 °F	1977
Coldest average high temperature	61.8 °F	1996
Most daily precipitation	3.3 inches	May 24, 1973
Most monthly precipitation	9.3 inches	1962
Most daily snow	2.5 inches	May 11, 1967
Most monthly snow	2.5 inches	1967

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	61.5	36.5	95	20
May 2	62.0	37.0	92	18
May 3	62.5	37.3	82	15
May 4	63.1	37.7	84	19
May 5	63.5	38.1	89	23
May 6	63.9	38.5	89	21
May 7	64.3	39.0	83	19
May 8	64.6	39.4	83	22
May 9	64.9	39.8	85	24
May 10	65.2	40.2	87	20
May 11	65.6	40.7	82	22
May 12	66.0	41.1	87	22
May 13	66.3	41.5	86	23
May 14	66.7	42.0	89	25
May 15	67.2	42.4	86	20
May 16	67.6	42.9	87	23
May 17	68.1	43.4	90	28
May 18	68.4	43.8	88	27
May 19	68.7	44.2	92	29
May 20	68.9	44.6	92	27
May 21	69.2	44.8	91	28
May 22	69.5	45.2	88	21
May 23	69.9	45.4	84	30
May 24	70.3	45.8	92	26
May 25	70.7	46.2	87	30
May 26	71.1	46.7	89	29
May 27	71.5	47.2	93	29
May 28	71.9	47.6	93	28
May 29	72.2	48.0	88	36
May 30	72.4	48.3	89	31
May 31	72.6	48.7	85	34

Weather Station Details

Years	Station	Coordinates
1956–2024	Summit 1 W	location