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Yankton May Weather

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

Typical Yankton May Weather 1991–2020
Average daily high	71.9 °F
Average daily low	47.8 °F
Average monthly precipitation	3.5 inches
Average monthly snow	0.2 inches
Daily chance of precipitation	37.7%
Daily chance of snow	0.35%

Yankton May Weather Records 1932–2024
Highest temperature	107 °F	May 30, 1934
Lowest temperature	24 °F	May 8, 1980
Highest daily low	80 °F	May 31, 1934
Lowest daily high	35 °F	May 5, 1944
Hottest average high temperature	87.8 °F	1934
Coldest average high temperature	60.4 °F	1935
Most daily precipitation	3.7 inches	May 23, 1972
Most monthly precipitation	11.7 inches	1972
Most daily snow	3.2 inches	May 5, 1944
Most monthly snow	3.5 inches	2017

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	66.0	41.2	96	25
May 2	66.5	41.6	96	27
May 3	66.9	42.0	95	25
May 4	67.3	42.4	94	26
May 5	67.8	42.7	91	28
May 6	68.2	43.1	97	24
May 7	68.6	43.5	91	27
May 8	69.0	44.1	91	24
May 9	69.2	44.6	95	28
May 10	69.4	45.0	95	27
May 11	69.7	45.4	93	24
May 12	70.1	45.8	93	25
May 13	70.5	46.3	91	25
May 14	70.8	46.7	97	29
May 15	71.3	47.0	98	29
May 16	71.8	47.4	95	28
May 17	72.2	47.9	101	28
May 18	72.7	48.4	102	31
May 19	73.0	48.8	103	32
May 20	73.3	49.2	102	34
May 21	73.5	49.5	94	30
May 22	73.8	49.8	93	30
May 23	74.3	50.2	93	31
May 24	74.7	50.6	99	36
May 25	75.0	51.0	92	37
May 26	75.3	51.3	97	37
May 27	75.8	51.8	98	35
May 28	76.3	52.3	101	31
May 29	76.7	52.7	106	30
May 30	77.0	53.1	107	35
May 31	77.3	53.5	104	35

Weather Station Details

Years	Station	Coordinates
1932–2024	Yankton 2 E	location