December weather in Brea, CA
The average temperature in Brea in December is 59.4°F (48.2°F–70.6°F). Average precipitation: 2.39 inches.
December is a winter month in Brea, and is cooler than the annual average of 67.7°F. Daily temperatures swing about 22.4°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 9h 45m. For travel, December is a comfortable month to visit.
Avg High
70.6°F
Avg Low
48.2°F
Precipitation
2.39 in
Daylight
9h 45m
December records in Brea
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 84.0°F (2013) | 37.0°F (1991) | 0.35 in (2014) |
| December 2 | 84.0°F (2015) | 39.0°F (2004) | 0.56 in (2014) |
| December 3 | 82.9°F (1990) | 43.0°F (1991) | 1.26 in (2012) |
| December 4 | 82.9°F (2006) | 39.9°F (2004) | 0.80 in (2019) |
| December 5 | 84.9°F (2023) | 41.0°F (2011) | 2.07 in (1997) |
| December 6 | 82.0°F (1989) | 41.0°F (1998) | 2.20 in (2018) |
| December 7 | 84.0°F (2015) | 37.9°F (1998) | 4.06 in (1992) |
| December 8 | 84.0°F (1990) | 37.0°F (2009) | 0.25 in (1992) |
| December 9 | 84.0°F (2025) | 39.9°F (1997) | 0.25 in (1996) |
| December 10 | 89.1°F (2004) | 39.0°F (2001) | 0.81 in (1996) |
| December 11 | 87.1°F (2017) | 37.9°F (2001) | 1.33 in (2022) |
| December 12 | 91.0°F (2010) | 39.9°F (1992) | 1.89 in (2009) |
| December 13 | 84.9°F (2010) | 37.0°F (1992) | 1.79 in (2009) |
| December 14 | 84.0°F (2004) | 37.0°F (1992) | 1.38 in (2021) |
| December 15 | 84.0°F (2013) | 36.0°F (2001) | 1.92 in (2008) |
| December 16 | 86.0°F (1998) | 37.9°F (2001) | 1.26 in (2016) |
| December 17 | 87.1°F (1998) | 37.0°F (1990) | 1.50 in (2012) |
| December 18 | 86.0°F (2004) | 35.1°F (2010) | 0.73 in (2010) |
| December 19 | 84.9°F (2004) | 36.0°F (2012) | 1.82 in (2010) |
| December 20 | 82.9°F (2020) | 37.9°F (1992) | 1.35 in (2010) |
| December 21 | 84.0°F (2020) | 33.1°F (1990) | 1.78 in (2010) |
| December 22 | 79.0°F (2020) | 36.0°F (1990) | 2.55 in (2010) |
| December 23 | 84.0°F (1989) | 32.0°F (1998) | 0.87 in (2019) |
| December 24 | 84.0°F (1989) | 35.1°F (1998) | 1.99 in (2025) |
| December 25 | 84.0°F (2006) | 37.9°F (1998) | 0.36 in (2003) |
| December 26 | 84.0°F (2022) | 35.1°F (2008) | 1.42 in (2019) |
| December 27 | 88.0°F (2013) | 36.0°F (2003) | 0.43 in (1996) |
| December 28 | 84.0°F (2017) | 37.0°F (2003) | 1.20 in (2020) |
| December 29 | 84.9°F (2017) | 37.9°F (2015) | 1.09 in (2004) |
| December 30 | 84.0°F (1997) | 39.0°F (2012) | 0.92 in (2021) |
| December 31 | 78.1°F (1997) | 34.0°F (2010) | 1.36 in (2016) |