December weather in Irvine, CA
The average temperature in Irvine in December is 56.3°F (42.8°F–69.9°F). Average precipitation: 2.25 inches.
December is a winter month in Irvine, and is cooler than the annual average of 64.9°F. Daily temperatures swing about 27.1°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 9h 46m. For travel, December is a comfortable month to visit.
Avg High
69.9°F
Avg Low
42.8°F
Precipitation
2.25 in
Daylight
9h 46m
December records in Irvine
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 91.0°F (1959) | 27.0°F (1936) | 0.81 in (1923) |
| December 2 | 91.9°F (1958) | 32.0°F (1945) | 1.37 in (1961) |
| December 3 | 95.0°F (1958) | 30.0°F (1919) | 1.70 in (1966) |
| December 4 | 91.0°F (1979) | 30.9°F (1920) | 1.94 in (1974) |
| December 5 | 91.0°F (1979) | 28.0°F (1948) | 1.43 in (1966) |
| December 6 | 89.1°F (1979) | 30.0°F (1936) | 5.17 in (1997) |
| December 7 | 84.9°F (1938) | 30.0°F (1960) | 0.97 in (1992) |
| December 8 | 89.1°F (1938) | 25.0°F (1998) | 0.57 in (1984) |
| December 9 | 87.1°F (1957) | 27.0°F (1960) | 2.00 in (1931) |
| December 10 | 88.0°F (1958) | 28.0°F (1916) | 1.30 in (1941) |
| December 11 | 89.1°F (1958) | 27.0°F (1949) | 1.31 in (1943) |
| December 12 | 84.0°F (1924) | 26.1°F (1949) | 1.25 in (1906) |
| December 13 | 84.0°F (1998) | 28.0°F (1920) | 1.25 in (1933) |
| December 14 | 90.0°F (1953) | 28.0°F (1971) | 0.56 in (1922) |
| December 15 | 87.1°F (1942) | 28.9°F (1935) | 1.29 in (1936) |
| December 16 | 89.1°F (1980) | 28.9°F (1935) | 1.48 in (1938) |
| December 17 | 88.0°F (1998) | 26.1°F (1924) | 1.38 in (1902) |
| December 18 | 86.0°F (1917) | 28.9°F (1924) | 2.40 in (1938) |
| December 19 | 84.0°F (1985) | 27.0°F (1924) | 1.45 in (1970) |
| December 20 | 87.1°F (1929) | 28.9°F (1924) | 1.13 in (1921) |
| December 21 | 82.9°F (1960) | 24.1°F (1968) | 1.53 in (1921) |
| December 22 | 84.9°F (1960) | 28.0°F (1968) | 1.91 in (1945) |
| December 23 | 82.0°F (1989) | 26.1°F (1990) | 2.20 in (1945) |
| December 24 | 84.9°F (1950) | 27.0°F (1953) | 1.85 in (1940) |
| December 25 | 86.0°F (1947) | 25.0°F (1924) | 1.60 in (1916) |
| December 26 | 91.0°F (1980) | 23.0°F (1924) | 1.60 in (1946) |
| December 27 | 87.1°F (1956) | 28.9°F (1916) | 1.65 in (1923) |
| December 28 | 88.0°F (1917) | 28.9°F (1930) | 1.43 in (1936) |
| December 29 | 88.0°F (1929) | 27.0°F (1954) | 1.98 in (1977) |
| December 30 | 97.0°F (1980) | 24.1°F (1918) | 3.02 in (1951) |
| December 31 | 86.0°F (1997) | 24.1°F (1918) | 1.31 in (1936) |