December weather in Ukiah, CA
The average temperature in Ukiah in December is 45.9°F (36.2°F–55.6°F). Average precipitation: 7.96 inches.
December is a winter month in Ukiah, and is cooler than the annual average of 58.9°F. Daily temperatures swing about 19.4°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 9h 16m. For travel, December is a wet month.
Avg High
55.6°F
Avg Low
36.2°F
Precipitation
7.96 in
Daylight
9h 16m
December records in Ukiah
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 77.0°F (1959) | 23.0°F (1936) | 3.37 in (1960) |
| December 2 | 79.0°F (1958) | 23.0°F (1907) | 2.47 in (1941) |
| December 3 | 80.1°F (1958) | 21.0°F (1925) | 4.04 in (1950) |
| December 4 | 77.0°F (1958) | 21.9°F (1936) | 2.22 in (1945) |
| December 5 | 79.0°F (1925) | 21.9°F (1972) | 2.32 in (1996) |
| December 6 | 78.1°F (1925) | 25.0°F (1903) | 2.19 in (1987) |
| December 7 | 86.0°F (1900) | 21.9°F (1971) | 2.59 in (1952) |
| December 8 | 73.0°F (1979) | 17.1°F (1972) | 2.52 in (2004) |
| December 9 | 70.0°F (1962) | 12.9°F (1972) | 3.18 in (1929) |
| December 10 | 73.0°F (1958) | 19.0°F (1972) | 4.26 in (1937) |
| December 11 | 78.1°F (1958) | 15.1°F (1972) | 3.93 in (1937) |
| December 12 | 72.0°F (1958) | 12.9°F (1932) | 5.41 in (1995) |
| December 13 | 70.0°F (1924) | 15.1°F (1932) | 3.01 in (2002) |
| December 14 | 75.9°F (1958) | 16.0°F (1940) | 4.60 in (2002) |
| December 15 | 75.0°F (1980) | 19.0°F (1932) | 2.00 in (1941) |
| December 16 | 75.0°F (1980) | 24.1°F (1901) | 2.00 in (2002) |
| December 17 | 71.1°F (1958) | 21.0°F (1918) | 1.50 in (1940) |
| December 18 | 73.9°F (1958) | 19.0°F (1924) | 2.25 in (1940) |
| December 19 | 69.1°F (1937) | 21.0°F (1908) | 3.85 in (1955) |
| December 20 | 70.0°F (1937) | 23.0°F (1897) | 1.90 in (2002) |
| December 21 | 68.0°F (1999) | 19.0°F (1998) | 4.23 in (1964) |
| December 22 | 72.0°F (1914) | 15.1°F (1990) | 6.18 in (1964) |
| December 23 | 71.1°F (1925) | 18.0°F (1948) | 4.11 in (1968) |
| December 24 | 73.9°F (1967) | 17.1°F (1930) | 2.67 in (1940) |
| December 25 | 79.0°F (1967) | 19.0°F (1924) | 1.48 in (1983) |
| December 26 | 77.0°F (1967) | 19.0°F (1924) | 3.04 in (1931) |
| December 27 | 77.0°F (1967) | 21.0°F (1923) | 2.35 in (1951) |
| December 28 | 73.0°F (1967) | 19.9°F (1930) | 2.15 in (2005) |
| December 29 | 69.1°F (1967) | 19.0°F (1930) | 2.90 in (2003) |
| December 30 | 70.0°F (1958) | 19.9°F (1915) | 3.05 in (1904) |
| December 31 | 70.0°F (1958) | 18.0°F (1918) | 5.09 in (2005) |