Challis, ID: May

31 May 2026: May 2026 averaged 55.5°F in Challis, ID, the warmest May since 2025, tied 17th warmest of 105 (with 1987 and 1954).

May 2026

Mean temperature: 55.5°F; Warmest since 2025; 17th warmest of 105
Precipitation: 0.03 in; Driest since 1940; 2nd driest of 111

A normal May in Challis, ID (1991 to 2020): 0.93 in of precipitation, between 0.36 in and 1.46 in in eight years of ten.

The mean temperature of every May in Challis, ID since 1896: 55.5°F in 2026; the highest is 60.4°F, in 1992.

Every year, ranked, as a table

Every May in Challis, ID from 1896 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	55.5	17	72.2	14	38.7	45	0.03	110	0
2025	56.3	12	71.9	15	40.8	12	0.45	84	0
2024	50.6	76	64.9	71	36.3	88	0.50	83	0
2023	56	14	70	23	41.9	8	1.21	37	0
2022	49.8	87	61.5	96	38.1	56	2.23	10	0
2021	52.9	49	66.9	52	38.9	40	0.43	87	0
2020									8
2019	53.9	33	67.5	46	40.2	21	0.89	59	0
2018	58.6	5	73	10	44.2	1	1.06	51	0
2017	53.5	42	69	33	38.1	56	1.18	38	0
2016	52.8	51	66.9	52	38.7	45	1.25	30	0
2015	53.8	35	67	51	40.7	14	1.15	42	0
2014	54.2	27	70	23	38.3	51	0.11	106	0
2013	54	31	68.1	43	39.8	27	0.74	70	0
2012	51.5	69	66.3	61	36.7	78	0.57	80	0
2011	48.8	94	61.3	98	36.2	89	1.14	43	0
2010	45.1	104	56.7	105	33.5	107	2.40	9	0
2009	52.5	56	68.5	37	36.6	80	0.65	76	0
2008	51.5	69	65.7	68	37.2	71	1.31	26	0
2007	53.6	40	70.2	21	37.1	72	0.67	75	0
2006	54.2	27	70.3	20	38.2	55	0.36	92	0
2005	52	64	64.8	72	39.1	37	1.28	29	0
2004	51.7	66	63.8	84	39.6	31	1.65	16	0
2003	52.8	51	67.6	45	37.9	59	0.75	67	0
2002	51.7	66	66.3	61	37.1	72	0.71	72	0
2001	55.3	21	72.4	13	38.3	51	0.07	108	0
2000	53.8	35	66.9	52	40.6	16	0.65	76	0
1999	50.2	82	64.3	76	36.2	89	1.29	28	0
1996					36.9	77	1.33	25	5
1995					39.3	34	1.89	14	6
1994					43.2	3	0.77	66	6
1993	57.5	7	73	10	42.1	5	0.93	57	3
1992	60.4	1	77	3	43.5	2	0.35	94	1
1991	50.2	82	62	94	38.5	49	1.22	35	1
1990	51	75	64.2	79	37.8	61	1.95	11	0
1989	53.1	47	66.9	52	39	39	0.57	80	1
1988	52.7	55	66.7	58	38.7	45	1.39	23	0
1987	55.5	17	68.8	36	42.1	5	2.54	5	0
1986	52.9	49	66.6	60	39.1	37	0.75	67	0
1985	54.2	27	68.4	39	39.9	26	1.02	54	0
1984	52.8	51	66	66	38.9	40	0.81	64	3
1983	51.5	69	64.7	75	37.8	61	0.36	92	2
1982	50.4	78	63.7	85	37.6	66	1.12	46	1
1981	50.5	77	61.4	97	39.6	31	1.90	12	0
1980	52.3	59	63.9	83	40.8	12	2.57	4	0
1979	54	31	67.7	44	40.2	21	0.44	86	0
1978	48.3	96	59.5	102	37	75	1.18	38	1
1977	48.3	96	60.8	100	36.6	80	1.46	18	1
1976	54.3	25	69.8	26	38.8	43	0.75	67	0
1975							0.71	72	17
1974	49.5	89	62.9	92	36.1	92	0.31	98	0
1973	53.8	35	69.8	26	38	58	0.38	91	3
1972	54.6	23	69	33	40	25	1.36	24	2
1971	52.4	58	66.1	65	38.6	48	1.05	52	0
1970	54.4	24	69.2	32	39.6	31	1.14	43	0
1969	59	3	75.5	6	42.5	4	0.16	105	0
1968	52.1	62	66.3	61	37.8	61	0.87	60	0
1967	54.2	27	69.6	31	38.8	43	0.35	94	0
1966	58.7	4	77.5	1	39.8	27	0.34	97	0
1965	50.3	81	64.3	76	36.4	83	1.12	46	0
1964	53.2	46	67.2	48	39.2	35	1.23	33	0
1963	55.6	16	69.7	30	41.4	10	1.02	54	0
1962	51.8	65	64.8	72	38.9	40	2.42	8	0
1961	53.3	44	68.2	41	38.5	49	2.43	6	0
1960	51.2	74	66	66	36.4	83	0.43	87	1
1959	47.4	101	61.8	95	33.6	106	0.91	58	3
1958	58.4	6	75	7	42.1	5	1.40	20	1
1957	53.8	35	67.2	48	40.5	19	3.34	1	0
1956	54.3	25	68.5	37	40.1	24	1.13	45	0
1955	51.6	68	66.7	58	36.4	83	1.10	48	1
1954	55.5	17	71.8	16	39.2	35	0.10	107	0
1953	47.5	100	61.2	99	34.1	104	0.83	63	1
1952	53.7	39	67.5	46	39.8	27	0.78	65	1
1951	52.3	59	67.2	48	37.5	69	1.25	30	0
1950	49.5	89	64.8	72	34.3	102	0.19	101	0
1949	55.4	20	69.8	26	41	11	1.71	15	0
1948	52.3	59	66.8	56	37.7	64	1.18	38	0
1947	55.8	15	71.2	17	40.3	20	1.18	38	0
1946	51.4	73	65.2	70	37.6	66	1.22	35	0
1945	52.1	62	66.2	64	37.9	59	1.40	20	1
1944	53	48	68.2	41	37.7	64	1.30	27	1
1943	49.5	89	63.6	87	35.4	95	0.28	99	0
1942	46.7	103	58.7	103	34.6	101	3.19	2	0
1941	53.3	44	68.3	40	38.3	51	1.24	32	0
1940	57.3	9	76.3	5	38.3	51	trace	111	0
1939	56.6	11	72.5	12	40.6	16	0.61	78	0
1938	51.5	69	66.8	56	36.2	89	1.10	48	0
1937					37.5	69	1.03	53	4
1936	56.9	10	73.9	9	39.8	27	0.24	100	0
1935	50	86	63.6	87	36.4	83	1.08	50	0
1934					40.2	21	0.18	103	5
1933									6
1932	50.4	78	64.3	76	36.5	82	1.47	17	3
1931									6
1930	53.6	40	70.1	22	37	75	0.41	90	0
1929							0.19	101	5
1928	59.1	2	76.4	4	41.7	9	0.84	62	1
1927	50.1	85	64	82	36.4	83	1.00	56	2
1926	53.5	42	71.2	17	35.9	93	0.71	72	0
1925	55.2	22	69.8	26	40.7	14	0.56	82	0
1924	53.9	33	70	23	37.6	66	0.07	108	1
1923	49.7	88	64.2	79	35.3	96	1.40	20	0
1922	49.5	89	64.1	81	34.9	97	0.35	94	0
1921	50.4	78	63.7	85	37.1	72	2.43	6	0
1920	48.9	93	62.9	92	34.8	98	0.61	78	0
1919	52.8	51	68.9	35	36.7	78	0.17	104	0
1918	48.3	96	63.1	91	33.2	108			1
1917	47.8	99	60.8	100	34.7	100	1.23	33	0
1916	44.6	105	58.2	104	31	110	0.45	84	0
1915	47.4	101	63.3	90	31.5	109	3.07	3	0
1914	52.5	56	70.9	19	34.2	103	1.41	19	0
1900	57.4	8	74.1	8	40.6	16	0.86	61	0
1899	50.2	82	65.5	69	34.8	98	1.90	12	0
1898	56.3	12	77.1	2	35.5	94	0.72	71	0
1896	48.7	95	63.4	89	34.1	104	0.43	87	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1992	60.4
1928	59.1
1969	59
1966	58.7
2018	58.6
1958	58.4
1993	57.5
1900	57.4
1940	57.3
1936	56.9

Coldest
Year	Mean, °F
1916	44.6
2010	45.1
1942	46.7
1959	47.4
1915	47.4
1953	47.5
1917	47.8
1978	48.3
1977	48.3
1918	48.3

Wettest
Year	Precipitation, in
1957	3.34
1942	3.19
1915	3.07
1980	2.57
1987	2.54
1961	2.43
1921	2.43
1962	2.42
2010	2.40
2022	2.23

Driest
Year	Precipitation, in
1940	trace
2026	0.03
2001	0.07
1924	0.07
1954	0.10
2014	0.11
1969	0.16
1919	0.17
1934	0.18
1950	0.19
More years share the last value

The hottest, coldest and wettest days

Hottest day: 86°F; 12 May 2026
Coldest night: 26°F; 17 May 2026
Wettest day: 0.02 in; 27 May 2026

Every month, season and year

Months

Seasons

Years

Challis, ID the day's answers

All-time records

Every answer in words

May 2026 brought 0.03 in of precipitation in Challis, ID, the driest May since 1940 (1997 excluded: 31 of 31 days missing; 1998 excluded: 31 of 31 days missing; 2020 excluded: 8 of 31 days missing), 2nd driest of 111.
The hottest day of May 2026 in Challis, ID: 86°F on Tuesday 12 May 2026.
The coldest night of May 2026 in Challis, ID: a low of 26°F on Sunday 17 May 2026.
The wettest day of May 2026 in Challis, ID: 0.02 in on Wednesday 27 May 2026.