December weather in Basalt, ID
The average temperature in Basalt in December is 24.8°F (17.5°F–32.1°F). Average precipitation: 1.11 inches. Average snowfall is 3.3 inches.
December is a winter month in Basalt, and is cooler than the annual average of 47.2°F. Daily temperatures swing about 14.6°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 8h 48m. For travel, December is cold.
Avg High
32.1°F
Avg Low
17.5°F
Precipitation
1.11 in
Snow
3.3 in
December records in Basalt
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 61.0°F (1995) | -5.1°F (1931) | 0.60 in (1982) |
| December 2 | 59.0°F (1926) | -4.0°F (1931) | 0.88 in (1901) |
| December 3 | 57.9°F (1980) | -5.1°F (1931) | 0.74 in (1966) |
| December 4 | 55.9°F (2021) | -24.0°F (1992) | 0.60 in (1906) |
| December 5 | 55.9°F (1946) | -29.0°F (1972) | 0.30 in (1909) |
| December 6 | 62.1°F (1945) | -13.0°F (1972) | 0.40 in (1899) |
| December 7 | 54.0°F (1915) | -8.0°F (1972) | 0.50 in (1950) |
| December 8 | 50.0°F (1915) | -16.1°F (1971) | 0.30 in (1947) |
| December 9 | 57.9°F (2015) | -26.0°F (1919) | 0.80 in (2004) |
| December 10 | 57.9°F (2015) | -27.0°F (1972) | 0.59 in (2016) |
| December 11 | 57.0°F (1933) | -26.0°F (1972) | 0.45 in (1937) |
| December 12 | 57.0°F (2014) | -20.0°F (1932) | 0.43 in (1995) |
| December 13 | 57.9°F (2014) | -24.0°F (1932) | 0.44 in (1974) |
| December 14 | 57.0°F (1958) | -20.0°F (1932) | 0.33 in (1966) |
| December 15 | 55.9°F (1946) | -24.0°F (1926) | 0.29 in (2024) |
| December 16 | 53.1°F (2025) | -18.0°F (1931) | 0.78 in (2016) |
| December 17 | 57.9°F (1962) | -17.0°F (1964) | 0.31 in (2016) |
| December 18 | 55.9°F (1917) | -22.0°F (1924) | 0.30 in (1929) |
| December 19 | 53.1°F (1979) | -29.9°F (1924) | 0.34 in (2010) |
| December 20 | 54.0°F (1941) | -25.1°F (1924) | 0.44 in (1996) |
| December 21 | 54.0°F (1955) | -20.0°F (1983) | 0.52 in (1921) |
| December 22 | 55.0°F (1917) | -29.0°F (1990) | 0.44 in (2008) |
| December 23 | 54.0°F (1955) | -27.0°F (1990) | 0.70 in (2023) |
| December 24 | 54.0°F (1936) | -24.0°F (1990) | 0.40 in (1904) |
| December 25 | 54.0°F (2025) | -20.0°F (1924) | 0.93 in (1955) |
| December 26 | 57.9°F (1980) | -25.1°F (1904) | 0.53 in (1971) |
| December 27 | 55.9°F (1980) | -20.9°F (1904) | 0.71 in (1996) |
| December 28 | 55.9°F (2025) | -15.0°F (1930) | 0.47 in (1963) |
| December 29 | 69.1°F (1976) | -13.0°F (1930) | 0.82 in (1992) |
| December 30 | 54.0°F (1917) | -16.1°F (1916) | 0.67 in (1965) |
| December 31 | 55.9°F (2011) | -25.1°F (1900) | 1.17 in (1967) |