Boise, ID: 2025

31 December 2025: 2025 averaged 55.5°F in Boise, ID, the warmest year since 1934, 2nd warmest of 147.

2025

Mean temperature: 55.5°F; Warmest since 1934; 2nd warmest of 147
Precipitation: 12.35 in; Wettest since 2024; 66th wettest of 148

A normal year in Boise, ID (1991 to 2020): a mean temperature of 52.9°F, between 52.3°F and 54.4°F in eight years of ten and 11.21 in of precipitation, between 8.50 in and 15.05 in in eight years of ten.

The mean temperature of every year in Boise, ID since 1878: 55.5°F in 2025; the highest is 55.9°F, in 1934.

Normal range, 52.3 to 54.4°F

Every year, ranked, as a table

Every year in Boise, ID from 1875 to 2025, 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
2025	55.5	2	66.9	2	44.1	3	12.35	66	0
2024	55.4	3	66.8	4	44.1	3	15.63	11	0
2023	54.6	8	65.6	13	43.6	8	13.79	43	0
2022	52.7	32	64.2	39	41.2	37	11.62	88	0
2021	55.3	5	66.8	4	43.7	5	12.24	69	0
2020	54	13	65.6	13	42.5	15	14.53	24	0
2019	53	22	64	44	41.9	22	14.53	24	0
2018	54.1	12	65.5	16	42.7	13	10.65	106	0
2017	52.9	26	63.7	56	42.2	18	15.37	14	0
2016	54.3	9	65.6	13	43.1	10	8.72	133	0
2015	55.4	3	66.5	8	44.3	1	10.96	101	0
2014	54.2	10	65.1	20	43.4	9	15.47	12	0
2013	51.8	63	63.4	71	40.2	68	9.55	119	0
2012	55.3	5	66.9	2	43.7	5	11.59	89	0
2011	52.5	39	63.7	56	41.3	33	10.49	108	0
2010	53.4	16	63.8	50	42.9	12	15.01	21	0
2009	52.6	37	63.2	77	42	21	11.32	93	0
2008	52.4	44	63.6	62	41.2	37	9.22	126	0
2007	54.2	10	66	11	42.4	16	8.10	140	0
2006	53.8	14	65	22	42.6	14	12.08	75	0
2005	52.5	39	63.6	62	41.3	33	13.53	50	0
2004	53.1	20	63.8	50	42.4	16	11.47	90	0
2003	54.9	7	66.1	10	43.7	5	10.11	111	0
2002	52.5	39	63.7	56	41.3	33	6.96	147	0
2001	52.9	26	64.3	35	41.4	31	8.54	137	0
2000	52.7	32	64	44	41.5	27	12.04	80	0
1999	52.7	32	64.3	35	41.1	41	8.59	136	0
1998	53.8	14	64.6	28	43	11	16.71	6	0
1997	52.9	26	64.4	33	41.5	27	11.09	98	0
1996	52.3	46	63.5	67	41.2	37	14.16	34	0
1995	52.3	46	64.2	39	40.4	59	14.07	37	0
1994	52.4	44	64.9	23	40	72	9.40	125	0
1993	48.8	141	60.5	143	37.1	139	12.76	58	0
1992	53.3	18	66.2	9	40.4	59	7.67	145	0
1991	51.2	83	63.7	56	38.6	113	9.47	122	0
1990	51.7	68	64.7	26	38.7	110	12.07	76	0
1989	50.2	120	62.8	87	37.5	131	10.44	110	0
1988	51.9	59	64.9	23	39	100	11.30	95	0
1987	52.8	30	65.9	12	39.7	78	8.49	138	0
1986	51.8	63	64	44	39.6	82	14.31	31	0
1985	45.9	147	58	150	33.8	148	11.14	97	0
1984	47.9	146	58.5	149	37.2	138	13.24	55	0
1983	51.2	83	62.4	105	39.9	74	18.77	3	0
1982	48.7	143	60.5	143	36.9	141	13.83	40	0
1981	51.7	68	64	44	39.5	87	15.28	16	0
1980	50.9	94	62.7	91	39.1	96	15.21	17	0
1979	50.4	113	62.6	95	38.2	124	12.07	76	0
1978	51.1	86	63.1	80	39.1	96	11.83	84	0
1977	50.8	101	62.6	95	39	100	12.20	71	0
1976	49.9	128	62.3	109	37.5	131	12.20	71	0
1975	50.8	101	61.9	122	39.7	78	13.69	46	0
1974	52.2	51	63.9	48	40.4	59	9.46	123	0
1973	52.9	26	64.4	33	41.5	27	11.37	92	0
1972	50.9	94	62.3	109	39.6	82	11.31	94	0
1971	51.5	76	62.4	105	40.6	55	11.84	83	0
1970	52	58	63.1	80	40.9	44	14.18	33	0
1969	51.8	63	63.6	62	40	72	12.31	68	0
1968	52.3	46	63.9	48	40.7	52	10.97	100	0
1967	52.3	46	64.1	43	40.5	57	7.68	144	0
1966	51.7	68	64.3	35	39.1	96	6.64	148	0
1965	51.1	86	62.6	95	39.6	82	12.52	63	0
1964	48.5	144	60.1	146	37	140	15.77	10	0
1963	52.5	39	63.8	50	41.2	37	13.25	54	0
1962	50.4	113	62	119	38.7	110	10.68	104	0
1961	52.2	51	64.3	35	40.1	70	9.18	128	0
1960	51	90	63.5	67	38.6	113	10.92	103	0
1959	50.4	113	62.7	91	38.1	127	10.01	113	0
1958	53.1	20	64.5	31	41.7	24	14.32	30	0
1957	50.1	122	61.4	131	38.8	109	12.59	61	0
1956	50.3	116	61.9	122	38.6	113	11.82	85	0
1955	48.8	141	60.1	146	37.4	134	12.19	73	0
1954	51.4	78	63.8	50	38.9	106	8.16	139	0
1953	51.6	73	63.6	62	39.6	82	13.80	42	0
1952	50.5	109	62.4	105	38.6	113	9.22	126	0
1951	50	125	61.5	128	38.6	113	13.69	46	0
1950	50.9	94	62.4	105	39.5	87	13.99	38	0
1949	50.1	122	62.5	101	37.8	128	7.43	146	0
1948	49.3	140	61.2	136	37.4	134	11.91	82	0
1947	51.1	86	63	85	39.3	92	10.08	112	0
1946	50.9	94	62.8	87	39.1	96	9.86	115	0
1945	50.7	104	62.1	116	39.3	92	13.44	51	0
1944	49.9	128	61.2	136	38.6	113	10.45	109	0
1943	51	90	62.8	87	39.2	94	9.92	114	0
1942	49.7	131	61.2	136	38.2	124	14.48	26	0
1941	51.9	59	63.2	77	40.6	55	13.81	41	0
1940	53	22	64.5	31	41.6	26	13.75	45	0
1939	53.3	18	65.2	17	41.3	33	8.08	141	0
1938	52.8	30	63.4	71	42.2	18	16.40	8	0
1937	51.7	68	63.1	80	40.3	63	12.60	60	0
1936	52.5	39	64.2	39	40.8	49	9.79	116	0
1935	50.5	109	61.5	128	39.4	89	9.09	129	0
1934	55.9	1	67.6	1	44.2	2	10.62	107	0
1933	51.8	63	63.5	67	40.1	70	7.95	142	0
1932	50.3	116	61.3	133	39.2	94	13.09	56	0
1931	52.1	54	63.7	56	40.5	57	9.41	124	0
1930	50.3	116	61.6	126	39	100	14.46	28	0
1929	50.2	120	61.8	124	38.5	120	8.83	132	0
1928	51.7	68	63	85	40.3	63	9.53	121	0
1927	51.4	78	62.1	116	40.7	52	15.41	13	0
1926	53.4	16	65.1	20	41.8	23	11.65	87	0
1925	53	22	63.8	50	42.2	18	13.79	43	0
1924	50.7	104	62.5	101	38.9	106	8.66	134	0
1923	51.3	80	62.3	109	40.3	63	12.47	65	0
1922	50.3	116	61.6	126	39	100	12.00	81	0
1921	52.3	46	63.8	50	40.9	44	12.07	76	0
1920	50.5	109	61.4	131	39.6	82	13.57	48	0
1919	50.6	108	62.2	114	39	100	11.46	91	0
1918	51.9	59	63.1	80	40.8	49	12.73	59	0
1917	50.9	94	62	119	39.7	78	14.48	26	0
1916	49.6	133	60.9	140	38.2	124	14.76	23	0
1915	52.1	54	63.1	80	41.1	41	13.31	52	0
1914	52.2	51	63.4	71	41	43	8.60	135	0
1913	50	125	60.3	145	39.7	78	16.04	9	0
1912	49.6	133	59.7	148	39.4	89	18.10	4	0
1911	49.8	130	60.6	142	39	100	15.35	15	0
1910	51.9	59	63.4	71	40.4	59	12.07	76	0
1909	51.6	73	62.3	109	40.9	44	15.06	20	0
1908	51.1	86	61.8	124	40.3	63	12.33	67	0
1907	52.1	54	62.6	95	41.5	27	16.52	7	0
1906	51.6	73	62.2	114	40.9	44	14.19	32	0
1905	51	90	62.3	109	39.8	75	9.77	117	0
1904	53	22	64.6	28	41.4	31	14.08	36	0
1903	50.9	94	62.1	116	39.8	75	9.55	119	0
1902	51.2	83	62.6	95	39.8	75	12.15	74	0
1901	52.7	32	64.6	28	40.7	52	9.59	118	0
1900	52.6	37	64.2	39	40.9	44	12.77	57	0
1899	50.1	122	61.3	133	38.9	106	14.81	22	0
1898	49.4	138	62.6	95	36.3	143	8.84	131	0
1897	50.9	94	63.3	76	38.4	122	17.00	5	0
1896	50.5	109	62.5	101	38.6	113	22.97	1	0
1895	49.5	136	63.4	71	35.6	147	7.90	143	0
1894	50.7	104	63.6	62	37.8	128	14.12	35	0
1893	48.5	144	60.7	141	36.3	143	13.89	39	0
1892	49.4	138	62.8	87	36	146	11.75	86	0
1891	49.7	131	62	119	37.4	134	13.31	52	0
1890	49.6	133	62.5	101	36.6	142	12.53	62	0
1889	51.3	80	64.9	23	37.7	130	10.95	102	0
1888	51.8	63	65.2	17	38.5	120	11.09	98	0
1887	51.3	80	65.2	17	37.4	134	11.29	96	0
1886	50.8	101	63.2	77	38.3	123	12.23	70	0
1885	52.7	32	63.7	56	41.7	24	12.51	64	0
1884	50.7	104	61.2	136	40.2	68	21.03	2	0
1883					36.1	145	15.11	19	38
1882	49.5	136	61.5	128	37.5	131	14.43	29	4
1881	51	90	62.7	91	39.4	89	13.56	49	4
1880	50	125	61.3	133	38.7	110	10.66	105	0
1879	51.5	76	62.7	91	40.3	63	15.17	18	0
1878	52.1	54	63.5	67	40.8	49	8.88	130	2
1877			64.7	26					181
1876			66.6	7					366
1875			66.8	4					365

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1934	55.9
2025	55.5
2024	55.4
2015	55.4
2021	55.3
2012	55.3
2003	54.9
2023	54.6
2016	54.3
2014	54.2
More years share the last value

Coldest
Year	Mean, °F
1985	45.9
1984	47.9
1964	48.5
1893	48.5
1982	48.7
1993	48.8
1955	48.8
1948	49.3
1898	49.4
1892	49.4

Wettest
Year	Precipitation, in
1896	22.97
1884	21.03
1983	18.77
1912	18.10
1897	17.00
1998	16.71
1907	16.52
1938	16.40
1913	16.04
1964	15.77

Driest
Year	Precipitation, in
1966	6.64
2002	6.96
1949	7.43
1992	7.67
1967	7.68
1895	7.90
1933	7.95
1939	8.08
2007	8.10
1954	8.16

The hottest, coldest and wettest days

Hottest day: 104°F; 8 July 2025
Coldest night: 5°F; 12 February 2025
Wettest day: 0.93 in; 21 December 2025

Month by month

Month	Mean temperature	Precipitation
January	31.5°F 70th warmest of 148	1.07 in 44th driest of 148
February	35.2°F 62nd coldest of 147	3.07 in 6th wettest of 148
March	46.8°F 18th warmest of 148	0.83 in 50th driest of 148
April	52.2°F 36th warmest of 148	0.43 in 17th driest of 148
May	62.3°F 13th warmest of 148	0.81 in 54th driest of 148
June	70.5°F 12th warmest of 148	0.15 in 20th driest of 148
July	78.1°F 21st warmest of 148	0.32 in 41st wettest of 148
August	76.7°F 18th warmest of 149	0.51 in 22nd wettest of 148
September	70.7°F 4th warmest of 149	0.81 in 32nd wettest of 148
October	52.7°F 70th warmest of 148	1.70 in 24th wettest of 148
November	46.3°F 6th warmest of 149	0.38 in 20th driest of 148
December	41.6°F 3rd warmest of 148	2.27 in 22nd wettest of 148

Hot days and freezes

Boise, ID has had 60 days at 90°F or above in 2025 through 31 December, the most by that date since 2024, tied 19th most of 150 (with 2008).
Boise, ID has had 7 days at 100°F or above in 2025 through 31 December, the most by that date since 2024, tied 41st most of 150 (with 2002, 1996, 1939 and 4 other years).
Boise, ID has had 86 freezing nights (a low of 32°F or below) in 2025 through 31 December, the most by that date since 2024, tied 140th most of 148 (with 1983).
The first freeze of fall 2025 in Boise, ID came on Thursday 30 October 2025, the earliest since 2024, tied 131st earliest of 148 (with 1922 and 1903).
The last freeze of spring 2025 in Boise, ID came on Friday 4 April 2025, the latest since 2024, tied 144th latest of 148 (with 1934).

Daily records set

Date	Record	Value	Before	Check
24 December	Warmest day	60°F	59°F 1885	Provisional
23 December	Warmest day	61°F	57°F 1885	Provisional
17 December	Warmest day	58°F	55°F 1917	Provisional
31 May	Warmest day	100°F	98°F 1910	Provisional

Daily records set and not listed: 0

Every month, season and year

Months

Seasons

Years

2025
2026

Boise, ID the day's answers

All-time records

Every answer in words

2025 brought 12.35 in of precipitation in Boise, ID, the wettest year since 2024, 66th wettest of 148.
The hottest day of 2025 in Boise, ID: 104°F on Tuesday 8 July 2025.
The coldest night of 2025 in Boise, ID: a low of 5°F on Wednesday 12 February 2025.
The wettest day of 2025 in Boise, ID: 0.93 in on Sunday 21 December 2025.