Boise December 18 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of December 18.

December 18 All-Time Records
1940–2022

55 °F

-3 °F

17 °F

Highest daily low

38 °F

0.5 inches

3.5 inches

December 18 Average Weather
1991–2020 ¹

Average high

38.3 °F

Average low

24.8 °F

Chance precipitation

38.9%

Chance snow

17.8%

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2021	35	25	0.00	0.0
2020	43	32	0.00	0.0
2019	35	22	0.00	0.0
2018	45	38	0.15	0.0
2017	45	29	0.00	0.0
2016	17	0	0.00	0.0
2015	43	35	0.04	0.0
2014	47	34	0.00	0.0
2013	26	21	0.00	0.0
2012	35	20	0.00	0.0
2011	38	19	0.00	0.0
2010	41	29	0.09	0.8
2009	45	32	0.01	0.0
2008	34	17	0.00	0.0
2007	42	36	0.18	0.0
2006	32	16	0.00	0.0
2005	27	8	0.02	0.5
2004	34	28	0.00	0.0
2003	42	29	0.00	0.0
2002	41	25	0.00	0.0
2001	40	27	0.01	0.0
2000	37	20	0.00	0.0
1999	49	33	0.01	0.0
1998	34	20	0.00	0.0
1997	39	26	0.00	0.0
1996	28	14	0.00	0.0
1995	36	25	0.00	0.0
1994	45	34	0.07	0.0
1993	41	21	0.00	0.0
1992	26	5	0.07	0.9
1991	53	28	0.05	0.0
1990	44	24	0.09	1.6
1989	35	15	0.00	0.0
1988	38	16	0.00	0.0
1987	34	18	0.00	0.0
1986	24	19	0.04	0.4
1985	17	-3	0.00	0.0
1984	19	-1	0.00	0.0
1983	30	24	0.10	1.0
1982	45	30	0.00	0.0
1981	41	31	0.26	0.0
1980	30	22	0.00	0.0
1979	55	25	0.00	0.0
1978	35	22	0.06	1.0
1977	39	30	0.01	0.1
1976	39	13	0.00	0.0
1975	24	9	0.00	0.0
1974	37	25	0.00	0.0
1973	47	33	0.00	0.0
1972	48	34	0.11	0.0
1971	32	14	0.00	0.0
1970	32	25	0.00	0.0
1969	46	32	0.00	0.0
1968	35	27	0.22	2.3
1967	34	19	0.08	0.7
1966	31	23	0.01	0.1
1965	29	14	0.00	0.0
1964	23	8	0.00	0.0
1963	36	23	0.00	0.0
1962	45	38	0.00	0.0
1961	37	25	0.00	0.0
1960	51	32	0.16	0.0
1959	42	22	0.00	0.0
1958	41	28	0.00	0.0
1957	46	33	0.06	0.0
1956	46	30	0.00	0.0
1955	49	31	0.03	0.0
1954	32	12	0.00	0.0
1953	37	29	0.02	0.0
1952	36	31	0.00	0.0
1951	43	25	0.31	3.5
1950	39	28	0.00	0.0
1949	40	20	0.20	3.2
1948	30	10	0.00	0.0
1947	45	31	0.00	0.0
1946	32	16	0.00	0.0
1945	24	0	0.00	0.0
1944	27	11	0.00	0.0
1943	37	21	0.00	0.0
1942	31	27	0.00	0.0
1941	46	36	0.46	0.0
1940	44	37	0.04	0.0

All-Time Highest Temperatures in Boise on December 18

All-Time Lowest Temperatures in Boise on December 18

Lowest High Temperatures in Boise on December 18

All-Time Most Precipitation in Boise on December 18

All-Time Most Snow in Boise on December 18

Weather Station Details

Years	Station	Coordinates
1940–2022		location