December weather in Pasadena, CA
The average temperature in Pasadena in December is 56.0°F (44.7°F–67.2°F). Average precipitation: 3.33 inches.
December is a winter month in Pasadena, and is cooler than the annual average of 66°F. Daily temperatures swing about 22.5°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 9h 44m. For travel, December is a comfortable month to visit.
Avg High
67.2°F
Avg Low
44.7°F
Precipitation
3.33 in
Daylight
9h 44m
December records in Pasadena
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 89.1°F (1959) | 35.1°F (1933) | 0.99 in (1925) |
| December 2 | 89.1°F (1958) | 35.1°F (1913) | 1.88 in (2014) |
| December 3 | 93.0°F (1958) | 33.1°F (1909) | 2.99 in (1966) |
| December 4 | 90.0°F (1939) | 30.0°F (1909) | 2.71 in (1974) |
| December 5 | 87.1°F (1979) | 32.0°F (1913) | 1.50 in (1987) |
| December 6 | 90.0°F (1938) | 33.1°F (1909) | 1.98 in (1997) |
| December 7 | 89.1°F (1940) | 30.0°F (1916) | 3.50 in (1992) |
| December 8 | 91.9°F (1938) | 28.0°F (1978) | 1.39 in (1926) |
| December 9 | 89.1°F (1950) | 27.0°F (1951) | 3.13 in (1909) |
| December 10 | 93.0°F (1950) | 32.0°F (1916) | 2.68 in (1941) |
| December 11 | 88.0°F (1958) | 30.0°F (1932) | 3.42 in (2022) |
| December 12 | 86.0°F (2010) | 27.0°F (1949) | 3.65 in (1906) |
| December 13 | 84.9°F (1958) | 30.9°F (1931) | 3.42 in (1933) |
| December 14 | 86.0°F (2017) | 30.0°F (1914) | 1.06 in (2021) |
| December 15 | 84.9°F (1942) | 32.0°F (1931) | 2.55 in (1938) |
| December 16 | 84.9°F (1980) | 30.9°F (1915) | 2.02 in (1988) |
| December 17 | 84.9°F (1958) | 30.0°F (1916) | 2.35 in (1940) |
| December 18 | 87.1°F (1917) | 28.0°F (1908) | 2.43 in (1938) |
| December 19 | 86.0°F (1917) | 28.9°F (1916) | 3.43 in (2010) |
| December 20 | 84.0°F (1917) | 32.0°F (1967) | 3.36 in (1921) |
| December 21 | 88.0°F (1917) | 28.0°F (1968) | 2.23 in (1970) |
| December 22 | 81.0°F (1933) | 26.1°F (1990) | 4.85 in (2010) |
| December 23 | 86.0°F (1950) | 26.1°F (1990) | 2.08 in (1940) |
| December 24 | 87.1°F (1950) | 28.0°F (1990) | 2.68 in (1916) |
| December 25 | 84.9°F (1947) | 28.0°F (1924) | 2.57 in (1983) |
| December 26 | 84.9°F (1980) | 28.9°F (1911) | 2.83 in (1946) |
| December 27 | 84.9°F (1947) | 25.0°F (1916) | 3.55 in (1906) |
| December 28 | 86.0°F (1917) | 30.9°F (1912) | 3.90 in (2004) |
| December 29 | 87.1°F (1917) | 27.0°F (1988) | 4.51 in (1965) |
| December 30 | 87.1°F (1945) | 28.9°F (1911) | 3.39 in (2021) |
| December 31 | 87.1°F (1917) | 26.1°F (1918) | 6.17 in (1933) |