Grand Forks, ND: May

31 May 2026: May 2026 averaged 54.6°F in Grand Forks, ND, the warmest May since 2025, tied 43rd warmest of 86 (with 2014).

May 2026

Mean temperature: 54.6°F; Warmest since 2025; 43rd warmest of 86
Precipitation: 1.78 in; Driest since 2025; 38th driest of 86

A normal May in Grand Forks, ND (1991 to 2020): a mean temperature of 54.4°F, between 50.8°F and 58.5°F in eight years of ten and 2.41 in of precipitation, between 1.10 in and 4.81 in in eight years of ten.

The mean temperature of every May in Grand Forks, ND since 1941: 54.6°F in 2026; the highest is 66.9°F, in 1977.

Normal range, 50.8 to 58.5°F

Every year, ranked, as a table

Every May in Grand Forks, ND from 1941 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank
2026	54.6	43	68.9	31	40.3	57	1.78	49
2025	59.8	9	74.7	6	44.9	20	1.75	50
2024	56.1	31	67.8	43	44.4	24	4.21	11
2023	62.4	2	77	3	47.7	4	1.12	68
2022	54.8	39	65.7	55	43.9	31	5.09	3
2021	53.2	55	68.5	35	37.8	75	2.29	38
2020	52.2	65	64.8	62	39.5	63	1.05	71
2019	51.2	68	64.1	66	38.3	72	1.72	52
2018	60	8	75.8	5	44.2	26	1.55	60
2017	56.2	28	69.2	27	43.2	33	1.11	69
2016	58.3	16	72	15	44.5	23	3.70	19
2015	53	59	65.5	57	40.4	53	4.45	8
2014	54.6	43	65.8	54	43.5	32	2.56	33
2013	54.2	48	65.9	52	42.5	38	4.79	6
2012	57.4	22	70.6	24	44.2	26	1.75	50
2011	53.1	56	63.9	67	42.2	40	2.45	35
2010	56.2	28	67	47	45.5	12	4.56	7
2009	50.8	71	63.9	67	37.7	78	1.29	65
2008	50.6	73	66.1	51	35.1	84	1.00	74
2007	56.5	25	69.1	28	44	30	5.12	2
2006	56.2	28	68.1	41	44.3	25	2.37	36
2005	52.4	64	63.2	71	41.6	46	3.89	15
2004	49.4	77	60.5	81	38.4	71	5.74	1
2003	53.7	51	66.2	50	41.2	47	4.27	10
2002	47.9	85	61.5	74	34.2	85	1.66	56
2001	55.8	32	67.5	45	44.2	26	3.73	18
2000	53.9	50	69	29	38.8	68	0.84	77
1999	55.2	37	65.3	59	45.1	17	5.01	4
1998	58.5	13	72	15	44.9	20	2.37	36
1997	52.7	62	64.9	61	40.5	51	2.06	44
1996	53.1	56	64.4	64	41.9	41	3.16	24
1995	54.2	48	65.9	52	42.6	37	1.96	45
1994	58.6	12	72.2	13	45	19	1.39	61
1993	55.6	33	68.5	35	42.7	36	1.61	58
1992	58.3	16	71.8	17	44.8	22	3.11	26
1991	60.6	5	70.8	23	50.4	2	3.75	17
1990	53.6	52	67.5	45	39.7	61	1.01	73
1989	57.6	20	71	22	44.1	29	2.16	40
1988	61.4	3	75.9	4	46.9	5	1.67	55
1987	60.4	6	73.1	9	47.8	3	3.76	16
1986	58.5	13	71.1	19	45.9	9	1.81	47
1985	60.4	6	74.5	7	46.2	7	4.32	9
1984	53.5	53	67.8	43	39.2	66	0.82	79
1983	51.1	69	64.4	64	37.8	75	1.79	48
1982	56.7	24	67	47	46.5	6	2.81	28
1981	55.3	36	68.8	33	41.7	44	1.25	67
1980	61.4	3	77.5	2	45.4	14	0.83	78
1979	48.1	84	57.9	85	38.3	72	1.66	56
1978	59.8	9	73.6	8	46	8	2.71	29
1977	66.9	1	79.8	1	54	1	3.55	21
1976	55.5	35	72.3	12	38.8	68	0.47	83
1975	55.6	33	68.3	38	42.9	35	0.77	80
1974	49.1	81	57.8	86	40.4	53	3.55	21
1973	54.3	47	68.4	37	40.3	57	2.60	32
1972	57.2	23	69	29	45.3	15	1.32	64
1971	54.5	45	68.3	38	40.7	50	2.10	41
1970	51.6	67	60.9	78	42.3	39	3.90	14
1969	53	59	66.3	49	39.7	61	2.09	42
1968	49.5	76	60.9	78	38.2	74	1.58	59
1967	48.2	83	59.9	82	36.5	82	0.14	86
1966	49.2	79	60.7	80	37.8	75	1.29	65
1965	50.7	72	61.1	77	40.4	53	3.91	13
1964	59	11	72.7	10	45.3	15	1.04	72
1963	53.1	56	65.7	55	40.5	51	0.94	76
1962	54.7	41	63.4	70	45.9	9	4.87	5
1961	53	59	68.9	31	37.2	80	0.75	81
1960	56.5	25	71.1	19	41.8	42	1.35	62
1959	52.6	63	65.4	58	39.8	60	2.46	34
1958	56.5	25	72.6	11	40.4	53	1.09	70
1957	54.7	41	68.2	40	41.2	47	2.23	39
1956	52	66	64.7	63	39.3	65	3.31	23
1955	58.3	16	71.5	18	45.1	17	2.86	27
1954	49.2	79	61.7	73	36.7	81	1.94	46
1953	53.4	54	65	60	41.7	44	2.63	31
1952	54.5	45	69.9	26	39.2	66	0.29	84
1951	57.6	20	72.1	14	43.1	34	0.25	85
1950	49.3	78	58.4	84	40.2	59	3.65	20
1949	54.9	38	68.1	41	41.8	42	3.94	12
1948	54.8	39	68.7	34	40.9	49	0.72	82
1947	48.6	82	61.2	76	36	83	1.33	63
1946	51.1	69	63.5	69	38.6	70	1.68	54
1945	46	86	58.7	83	33.3	86	0.96	75
1944	57.7	19	70	25	45.5	12	3.13	25
1943	49.7	75	61.9	72	37.4	79	2.66	30
1942	50.4	74	61.3	75	39.4	64	2.07	43
1941	58.4	15	71.1	19	45.8	11	1.72	52

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1977	66.9
2023	62.4
1988	61.4
1980	61.4
1991	60.6
1987	60.4
1985	60.4
2018	60
2025	59.8
1978	59.8

Coldest
Year	Mean, °F
1945	46
2002	47.9
1979	48.1
1967	48.2
1947	48.6
1974	49.1
1966	49.2
1954	49.2
1950	49.3
2004	49.4

Wettest
Year	Precipitation, in
2004	5.74
2007	5.12
2022	5.09
1999	5.01
1962	4.87
2013	4.79
2010	4.56
2015	4.45
1985	4.32
2003	4.27

Driest
Year	Precipitation, in
1967	0.14
1951	0.25
1952	0.29
1976	0.47
1948	0.72
1961	0.75
1975	0.77
1984	0.82
1980	0.83
2000	0.84

The hottest, coldest and wettest days

Hottest day: 94°F; 28 May 2026
Coldest night: 21°F; 7 May 2026, 1 May 2026
Wettest day: 0.82 in; 17 May 2026

Every month, season and year

Months

Seasons

Years

Grand Forks, ND the day's answers

All-time records

Every answer in words

May 2026 brought 1.78 in of precipitation in Grand Forks, ND, the driest May since 2025, 38th driest of 86.
The hottest day of May 2026 in Grand Forks, ND: 94°F on Thursday 28 May 2026.
The coldest night of May 2026 in Grand Forks, ND: a low of 21°F on Thursday 7 May 2026 and Friday 1 May 2026.
The wettest day of May 2026 in Grand Forks, ND: 0.82 in on Sunday 17 May 2026.