Lewiston, ID: May

31 May 2026: May 2026 averaged 62.5°F in Lewiston, ID, the warmest May since 2023, tied 19th warmest of 136 (with 1944).

May 2026

Mean temperature: 62.5°F; Warmest since 2023; 19th warmest of 136
Precipitation: 0.77 in; Driest since 2025; 30th driest of 137

A normal May in Lewiston, ID (1991 to 2020): a mean temperature of 60.2°F, between 55.3°F and 62.9°F in eight years of ten and 1.39 in of precipitation, between 0.60 in and 3.26 in in eight years of ten.

The mean temperature of every May in Lewiston, ID since 1882: 62.5°F in 2026; the highest is 66.6°F, in 2023.

Normal range, 55.3 to 62.9°F

Every year, ranked, as a table

Every May in Lewiston, ID from 1882 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	Days missing
2026	62.5	19	75.7	23	49.3	22	0.77	108	0
2025	62.1	24	75.4	28	48.8	28	0.51	123	0
2024	59.8	64	72.1	66	47.5	56	0.79	106	0
2023	66.6	1	79.6	6	53.6	1	0.71	111	0
2022	56.1	118	66	129	46.3	85	1.91	35	0
2021	61.3	35	74.7	35	47.9	49	0.16	136	0
2020	60.2	53	72	68	48.5	33	3.10	11	0
2019	62.7	18	75.5	24	49.9	13	0.80	105	0
2018	64.9	5	76.6	20	53.2	2	2.77	17	0
2017	59.6	70	72.1	66	47.1	66	1.49	58	0
2016	61.9	26	73.9	44	50	11	1.53	56	0
2015	63.5	13	76.7	17	50.3	9	1.11	81	0
2014	61.5	30	74.8	32	48.2	41	0.52	122	0
2013	61.1	40	74.5	36	47.6	54	0.86	99	0
2012	57.6	102	69.4	99	45.9	97	0.72	110	0
2011	55.1	129	65.6	132	44.7	112	3.57	4	0
2010	54.8	131	65.7	131	44	121	1.88	36	0
2009	60.2	53	73.5	48	46.9	70	0.86	99	0
2008	61	42	73.1	57	48.9	27	0.95	96	0
2007	60.5	48	73.6	47	47.3	62	0.82	103	0
2006	61.3	35	74	43	48.5	33	1.65	45	0
2005	60.6	46	71.5	78	49.6	16	3.22	8	0
2004	58.5	91	68.6	110	48.5	33	3.12	10	0
2003	57.4	103	68.6	110	46.2	88	2.10	28	0
2002	56.7	109	68.8	106	44.7	112	0.57	119	0
2001	60.2	53	73.9	44	46.5	78	0.60	115	0
2000	58.6	88	70.2	91	47.1	66	1.46	61	0
1999	55.3	128	67	125	43.5	126	1.31	72	0
1998	58.9	82	69	104	48.7	30	3.78	2	0
1997	61.5	30	73.2	53	49.8	14	0.81	104	0
1996	54.1	135	64	136	44.2	117	2.75	18	0
1995	59.8	64	71	83	48.6	32	0.93	97	0
1994	61.5	30	73.5	48	49.6	16	1.21	77	0
1993	62.9	17	75.3	30	50.5	6	1.97	32	0
1992	63	16	77.7	14	48.3	38	0.49	126	0
1991	55.9	123	67.5	119	44.2	117	3.74	3	0
1990	58.8	84	69.3	102	48.3	38	2.39	23	0
1989	59.3	77	70.7	86	48	47	2.57	21	0
1988	58.8	84	71.2	81	46.5	78	0.91	98	0
1987	62.3	22	74.2	38	50.4	7	0.84	101	0
1986	60.1	56	72	68	48.2	41	1.39	64	0
1985	60.3	51	73	59	47.5	56	1.29	73	0
1984	56.1	118	68	114	44.1	119	1.68	43	0
1983	59.5	72	72.9	61	46	93	1.15	79	0
1982	57.2	106	69.6	93	44.8	110	0.65	114	0
1981	57	107	67.6	117	46.3	85	1.11	81	0
1980	58.2	95	69.4	99	47	69	1.87	37	0
1979	59.1	80	70.9	85	47.4	60	1.56	53	0
1978	56	122	66.1	128	45.9	97	1.06	84	0
1977	56.5	113	67	125	46	93	1.63	48	0
1976	59.7	68	73.3	50	46.1	92	1.41	63	0
1975	57.8	98	69.4	99	46.2	88	1.01	91	0
1974	56.3	116	67.8	116	44.8	110	0.76	109	0
1973	61.1	40	75.4	28	46.8	72	1.58	52	0
1972	61	42	74.2	38	47.8	52	1.61	49	0
1971	60.4	49	72.9	61	47.9	49	1.92	34	0
1970	59.3	77	71.9	70	46.6	75	1.26	74	0
1969	61.4	34	74.8	32	48	47	1.25	75	0
1968	58.6	88	70.6	87	46.5	78	0.97	94	0
1967	58.2	95	70.5	88	46	93	1.17	78	0
1966	61.2	38	75.5	24	46.8	72	0.42	129	0
1965	56.6	111	69.5	97	43.7	123	0.48	127	0
1964	57.4	103	69.6	93	45.2	104	0.27	134	0
1963	60	61	73.2	53	46.7	74	0.46	128	0
1962	54.7	132	64.5	135	44.9	108	2.83	16	0
1961	56.8	108	68.7	109	44.9	108	1.86	39	0
1960	54.9	130	67.1	123	42.8	132	1.67	44	0
1959	54.4	134	66.3	127	42.5	134	1.03	87	0
1958	64.6	8	79.2	8	50.1	10	1.00	92	0
1957	60.7	45	71.7	73	49.6	16	3.14	9	0
1956	60.1	56	72.2	64	47.9	49	3.37	6	0
1955	53.3	136	65.5	133	41.1	136	0.96	95	0
1954	59.1	80	73.2	53	45.1	105	0.84	101	0
1953	54.7	132	67.1	123	42.4	135	1.93	33	0
1952	59.4	75	71.6	77	47.1	66	1.82	41	0
1951	57.8	98	71.9	70	43.7	123	1.05	85	0
1950	55.9	123	68.8	106	43	130	1.34	68	0
1949	61.7	29	74.2	38	49.3	22	1.56	53	0
1948	55.7	125	66	129	45.5	101	4.80	1	0
1947	64.7	7	78.9	11	50.4	7	0.38	132	0
1946	61.8	27	79.1	9	44.5	115	1.64	46	0
1945	61.5	30	76.5	21	46.5	78	1.35	67	0
1944	62.5	19	77.5	15	47.5	56	0.50	124	0
1943	56.7	109	69.6	93	43.8	122	1.60	50	0
1942	57.8	98	69.8	92	45.7	100	3.40	5	0
1941	62	25	73.3	50	50.7	5	3.35	7	0
1940	64.4	9	80	5	48.7	30	1.38	65	0
1939	63.6	12	79.1	9	48.1	45	0.79	106	0
1938	60	61	75.5	24	44.5	115	0.60	115	0
1937	61.8	27	77.8	13	45.8	99	0.53	121	0
1936	66.2	2	82.3	2	50	11	0.68	112	0
1935	59.9	63	76.7	17	43.1	129	0.41	130	0
1934	65.4	4	81.3	4	49.6	16	1.03	87	0
1933	56.6	111	68.2	113	45.1	105	1.50	57	0
1932	59.4	75	71.4	79	47.4	60	2.56	22	0
1931	63.9	11	78.2	12	49.6	16	0.36	133	0
1930	58.5	91	70.5	88	46.5	78	1.64	46	0
1929	60.1	56	74.1	41	46.2	88	0.56	120	0
1928	64.8	6	81.4	3	48.2	41	0.23	135	0
1927	56.4	115	67.3	122	45.4	103	1.04	86	0
1926	60.4	49	73	59	47.8	52	1.46	61	0
1925	63.3	15	76.8	16	49.7	15	2.37	24	0
1924	65.8	3	82.7	1	49	26	trace	137	0
1923	59.7	68	71.7	73	47.6	54	1.03	87	0
1922	58.9	82	72.2	64	45.5	101	0.60	115	0
1921	60.1	56	73.3	50	46.9	70	1.34	68	0
1920	56.5	113	68.4	112	44.6	114	1.54	55	0
1919	59.5	72	72.5	63	46.4	83	0.98	93	0
1918	56.1	118	69.5	97	42.6	133	0.66	113	0
1917	57.3	105	67.9	115	46.6	75	2.27	26	0
1916	55.5	127	67.4	121	43.5	126	1.47	60	0
1915	58.7	87	68.9	105	48.5	33	2.85	15	0
1914	62.4	21	76.7	17	48.2	41	1.15	79	0
1913	59.5	72	71.7	73	47.3	62	1.60	50	0
1912	59.6	70	71.7	73	47.5	56	2.67	20	0
1911	55.6	126	67.5	119	43.7	123	1.86	39	0
1910	62.2	23	76.1	22	48.3	38	1.87	37	0
1909	57.7	101	69.1	103	46.4	83	1.32	71	0
1908	56.3	116	67.6	117	45	107	1.23	76	0
1907	61.2	38	75.2	31	47.3	62	1.03	87	0
1906	59.8	64	71.2	81	48.4	37	2.33	25	0
1905	58.1	97	69.6	93	46.6	75	1.37	66	0
1904	60.6	46	73.1	57	48.1	45	0.58	118	0
1903	58.8	84	71.3	80	46.3	85	1.49	58	0
1902	59.8	64	70.5	88	49.1	24	2.72	19	0
1901	63.4	14	75.5	24	51.3	4	1.10	83	0
1900	60.1	56	74.1	41	46	93	2.16	27	1
1899	58.4	94	65.3	134	51.5	3	1.34	68	0
1898	58.5	91	73.7	46	43.4	128	2.06	30	0
1897							2.94	13	6
1896	56.1	118	68.8	106	43	130	1.70	42	2
1895	59.2	79	74.3	37	44.1	119	2.07	29	0
1894	61	42	74.8	32	47.2	65	2.86	14	0
1885	61.3	35	73.2	53	49.5	21	3.02	12	0
1884	64.2	10	79.3	7	49.1	24	0.50	124	0
1883	60.3	51	71.9	70	48.8	28	2.01	31	0
1882	58.6	88	71	83	46.2	88	0.40	131	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2023	66.6
1936	66.2
1924	65.8
1934	65.4
2018	64.9
1928	64.8
1947	64.7
1958	64.6
1940	64.4
1884	64.2

Coldest
Year	Mean, °F
1955	53.3
1996	54.1
1959	54.4
1962	54.7
1953	54.7
2010	54.8
1960	54.9
2011	55.1
1999	55.3
1916	55.5

Wettest
Year	Precipitation, in
1948	4.80
1998	3.78
1991	3.74
2011	3.57
1942	3.40
1956	3.37
1941	3.35
2005	3.22
1957	3.14
2004	3.12

Driest
Year	Precipitation, in
1924	trace
2021	0.16
1928	0.23
1964	0.27
1931	0.36
1947	0.38
1882	0.40
1935	0.41
1966	0.42
1963	0.46

The hottest, coldest and wettest days

Hottest day: 90°F; 12 May 2026
Coldest night: 41°F; 18 May 2026, 17 May 2026
Wettest day: 0.26 in; 26 May 2026

Every month, season and year

Months

Seasons

Years

Lewiston, ID the day's answers

All-time records

Every answer in words

May 2026 brought 0.77 in of precipitation in Lewiston, ID, the driest May since 2025, 30th driest of 137.
The hottest day of May 2026 in Lewiston, ID: 90°F on Tuesday 12 May 2026.
The coldest night of May 2026 in Lewiston, ID: a low of 41°F on Monday 18 May 2026 and Sunday 17 May 2026.
The wettest day of May 2026 in Lewiston, ID: 0.26 in on Tuesday 26 May 2026.