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Grand Forks May Weather

Averages and records for weather in Grand Forks, North Dakota in the month of May.

Typical Grand Forks May Weather 1991–2020
Average daily high	66.8 °F
Average daily low	43.6 °F
Average monthly precipitation	3.1 inches
Average monthly snow	0.1 inches
Daily chance of precipitation	33.8%
Daily chance of snow	0.67%

Grand Forks May Weather Records 1893–2024
Highest temperature	105 °F	May 30, 1934
Lowest temperature	5 °F	May 3, 1967
Highest daily low	74 °F	May 31, 1988
Lowest daily high	28 °F	May 2, 1967
Hottest average high temperature	80.8 °F	1977
Coldest average high temperature	57.4 °F	1927
Most daily precipitation	3.7 inches	May 31, 1991
Most monthly precipitation	8.0 inches	1896
Most daily snow	4.1 inches	May 8, 1938
Most monthly snow	6.7 inches	1924

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	60.2	37.3	89	17
May 2	60.7	37.8	91	14
May 3	61.2	38.1	91	5
May 4	61.7	38.5	94	21
May 5	62.1	38.9	96	20
May 6	62.6	39.4	86	19
May 7	63.0	39.9	88	20
May 8	63.5	40.3	92	22
May 9	63.8	40.8	90	20
May 10	64.2	41.2	94	19
May 11	64.5	41.6	95	22
May 12	64.9	41.9	95	19
May 13	65.4	42.3	92	21
May 14	65.9	42.7	91	25
May 15	66.3	43.2	96	28
May 16	66.9	43.6	89	24
May 17	67.4	44.1	91	25
May 18	67.8	44.6	92	27
May 19	68.1	45.0	95	24
May 20	68.5	45.4	90	20
May 21	68.9	45.8	100	25
May 22	69.3	46.2	95	25
May 23	69.7	46.6	95	27
May 24	70.2	47.0	91	27
May 25	70.6	47.4	93	29
May 26	71.0	47.9	92	30
May 27	71.5	48.4	99	21
May 28	71.9	48.7	95	25
May 29	72.2	49.1	96	32
May 30	72.5	49.6	105	29
May 31	72.8	50.0	97	25

Weather Station Details

Years	Station	Coordinates
1893–2024	Grand Forks	location