December weather in Susanville, CA
The average temperature in Susanville in December is 32.4°F (22.3°F–42.6°F). Average precipitation: 1.90 inches.
December is a winter month in Susanville, and is cooler than the annual average of 50.2°F. Daily temperatures swing about 20.3°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 9h 7m. For travel, December is cold.
Avg High
42.6°F
Avg Low
22.3°F
Precipitation
1.90 in
Daylight
9h 7m
December records in Susanville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 64.9°F (1929) | 7.0°F (1905) | 1.24 in (1973) |
| December 2 | 60.1°F (1927) | 7.0°F (2022) | 2.03 in (1941) |
| December 3 | 63.0°F (1977) | 8.1°F (1952) | 1.50 in (1915) |
| December 4 | 63.0°F (1979) | 1.0°F (1948) | 1.02 in (1980) |
| December 5 | 63.0°F (1958) | 1.0°F (1972) | 0.70 in (1901) |
| December 6 | 64.0°F (2021) | 3.9°F (1909) | 1.30 in (1894) |
| December 7 | 62.1°F (1958) | -8.0°F (1956) | 1.17 in (1907) |
| December 8 | 60.1°F (1937) | -9.9°F (1956) | 1.70 in (2019) |
| December 9 | 60.1°F (1979) | -22.0°F (1972) | 2.20 in (1929) |
| December 10 | 61.0°F (1981) | -13.0°F (1972) | 3.65 in (1937) |
| December 11 | 61.0°F (2025) | -18.0°F (1972) | 2.55 in (1906) |
| December 12 | 64.9°F (1917) | -9.0°F (1932) | 1.36 in (1995) |
| December 13 | 59.0°F (1969) | -6.0°F (1932) | 1.20 in (1915) |
| December 14 | 57.0°F (1969) | -2.0°F (1932) | 1.76 in (1896) |
| December 15 | 57.9°F (1939) | -5.1°F (1948) | 1.12 in (1899) |
| December 16 | 57.9°F (1939) | 1.9°F (1959) | 1.06 in (1941) |
| December 17 | 57.0°F (2018) | -0.9°F (2008) | 1.31 in (2020) |
| December 18 | 62.1°F (1917) | -0.9°F (1908) | 2.10 in (1894) |
| December 19 | 61.0°F (1917) | 0.0°F (1908) | 3.36 in (1955) |
| December 20 | 57.0°F (1961) | -5.1°F (1949) | 1.75 in (1895) |
| December 21 | 61.0°F (1915) | -4.0°F (1914) | 2.83 in (1964) |
| December 22 | 60.1°F (2014) | -0.9°F (1914) | 3.30 in (1964) |
| December 23 | 60.1°F (2014) | -2.9°F (1948) | 1.55 in (2021) |
| December 24 | 57.9°F (1902) | -7.1°F (1948) | 1.17 in (1969) |
| December 25 | 60.1°F (1902) | 1.0°F (1992) | 1.21 in (1971) |
| December 26 | 63.0°F (1917) | -2.0°F (1914) | 1.45 in (2025) |
| December 27 | 59.0°F (1917) | -8.0°F (1988) | 1.10 in (1931) |
| December 28 | 61.0°F (1917) | 3.9°F (1914) | 0.98 in (1941) |
| December 29 | 60.1°F (1933) | -5.1°F (1974) | 2.50 in (1992) |
| December 30 | 61.0°F (2023) | -5.1°F (1911) | 2.62 in (1904) |
| December 31 | 63.0°F (2017) | -2.9°F (1951) | 2.03 in (2005) |