Average December Temperature in Twin Falls by Year

This page contains a list of the average monthly high and low temperatures in Twin Falls, Idaho for the month of December each year between 1925 and 2023. It is based on NOAA data.

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What Was the Hottest December Ever in Twin Falls?

1933 was the warmest December in the history of Twin Falls, Idaho. The average daily high temperature was 50.2 °F, and the average low was 28.1 °F.

What Was the Coldest December Ever in Twin Falls?

1985 was the coolest December in the history of Twin Falls, Idaho. The average daily high temperature was 23.1 °F, and the average low was 2.4 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	29	39.9	25.1
2022	73	35.7	20.0
2021	23	41.7	24.4
2020	56	39.4	19.6
2019	50	36.6	22.7
2018	68	35.9	20.1
2017	75	35.8	19.4
2016	92	32.5	15.7
2015	72	35.5	20.4
2014	3	44.7	27.9
2013	82	36.2	16.5
2012	26	40.2	25.2
2011	57	40.9	18.0
2010	10	41.3	27.8
2009	87	33.1	16.9
2008	54	39.1	19.9
2007	48	38.3	21.6
2006	66	37.7	18.7
2005	78	34.7	19.1
2004	22	40.5	25.6
2003	11	41.3	27.3
2002	16	42.3	24.8
2001	79	33.4	20.1
2000	67	35.0	21.0
1999	60	36.8	21.2
1998	74	37.1	18.6
1997	64	36.4	20.3
1996	32	39.5	24.6
1995	28	40.7	24.3
1994	84	33.7	18.3
1993	49	38.6	21.1
1992	93	32.3	15.5
1991	47	39.6	20.4
1990	98	29.3	6.0
1989	45	40.6	20.1
1988	85	33.1	18.0
1987	71	37.5	18.4
1986	76	38.7	16.5
1985	99	23.1	2.4
1984	96	31.9	13.0
1983	89	30.3	18.5
1982	55	36.6	22.4
1981	17	41.8	25.1
1980	21	43.2	23.0
1979	33	41.7	22.3
1978	86	33.8	16.3
1977	7	42.2	27.5
1976	38	44.6	18.0
1975	8	44.1	25.5
1974	41	39.1	22.0
1973	12	42.5	25.9
1972	88	33.7	16.1
1971	81	36.0	17.3
1970	58	38.2	20.5
1969	25	41.2	24.3
1968	44	38.9	21.9
1967	80	35.6	17.8
1966	42	38.6	22.3
1965	43	41.0	19.8
1964	15	41.6	25.7
1963	69	36.2	19.7
1962	24	43.1	22.6
1961	53	37.6	21.5
1960	46	39.9	20.3
1959	51	41.3	18.0
1958	2	46.6	27.5
1957	13	43.6	24.3
1956	36	41.9	20.7
1955	18	42.1	24.6
1954	65	38.0	18.5
1953	30	40.9	23.5
1952	27	42.4	22.9
1951	77	35.2	19.4
1950	14	44.4	23.0
1949	63	40.3	17.2
1948	95	33.1	12.3
1947	52	39.2	20.0
1946	20	42.9	23.4
1945	59	39.4	18.9
1944	61	40.0	17.8
1943	35	42.6	20.7
1942	19	43.1	23.2
1941	34	40.8	22.8
1940	39	45.1	17.0
1939	5	49.0	21.4
1938	40	41.6	20.0
1937	9	43.9	25.4
1936	37	42.4	20.2
1935	62	40.2	17.6
1934	31	41.1	23.1
1933	1	50.2	28.1
1932	94	33.5	12.2
1931	83	37.5	15.0
1930	97	31.6	8.4
1929	6	45.8	23.9
1928	91	35.7	13.0
1927	90	35.2	13.5
1926	70	36.7	19.3
1925	4	43.5	28.5

Weather Station Details

Years	Station	Coordinates
1998–2024	Magic Valley Regional Airport	location
1977–1997	Twin Falls 6 E	location
1925–1976	Twin Falls 3 SE	location