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Sioux Falls May Weather

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

Typical Sioux Falls May Weather 1991–2020
Average daily high	69.7 °F
Average daily low	46.7 °F
Average monthly precipitation	3.9 inches
Average monthly snow	0.1 inches
Daily chance of precipitation	39.1%
Daily chance of snow	0.22%

Sioux Falls May Weather Records 1932–2024
Highest temperature	104 °F	May 30, 1934
Lowest temperature	17 °F	May 4, 1967
Highest daily low	77 °F	May 31, 1934
Lowest daily high	36 °F	May 5, 1944
Hottest average high temperature	85.0 °F	1934
Coldest average high temperature	64.0 °F	1997
Most daily precipitation	4.2 inches	May 29, 2004
Most monthly precipitation	9.0 inches	1936
Most daily snow	3.0 inches	May 5, 1944
Most monthly snow	3.0 inches	1944

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	64.1	40.6	94	21
May 2	64.6	41.0	88	23
May 3	65.0	41.3	92	18
May 4	65.5	41.7	91	17
May 5	65.9	42.0	93	23
May 6	66.3	42.4	89	25
May 7	66.6	42.9	90	26
May 8	66.9	43.5	96	26
May 9	67.0	43.9	94	25
May 10	67.3	44.3	90	25
May 11	67.7	44.7	90	21
May 12	68.0	45.1	94	20
May 13	68.4	45.5	92	24
May 14	68.8	45.9	96	30
May 15	69.3	46.3	92	27
May 16	69.7	46.8	92	23
May 17	70.1	47.2	97	31
May 18	70.4	47.7	98	30
May 19	70.7	48.1	97	28
May 20	71.0	48.4	95	27
May 21	71.3	48.7	93	33
May 22	71.7	49.0	92	27
May 23	72.1	49.4	94	34
May 24	72.5	49.8	96	30
May 25	72.8	50.2	100	33
May 26	73.3	50.6	93	31
May 27	73.8	51.1	95	34
May 28	74.2	51.6	98	30
May 29	74.5	51.9	99	28
May 30	74.8	52.3	104	37
May 31	75.1	52.7	100	33

Weather Station Details

Years	Station	Coordinates
1932–2024	Sioux Falls	location