Weather on December 15
Antioch, CA
55 Years of Data
Avg High
54°F
Avg Low
38°F
Warmest
1983
59°F avg
Coldest
1972
27°F avg
About This Date
December 15th in Antioch, CA typically brings cool winter weather, with average highs around 54°F and lows near 38°F. Over 55 years of records, the warmest December 15th was in 1983 (59°F average), while the coldest was 1972 (27°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 20% of December 15th dates historically, with the wettest December 15th recording 1.98" of rain. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for December 15th in Antioch, CA? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 48° | 54° | — | — |
| 2024 | 48° | 42° | 45° | — | — |
| 2023 | 52° | 45° | 48° | — | — |
| 2022 | 52° | 37° | 44° | — | — |
| 2021 | 49° | 38° | 43° | — | — |
| 2020 | 56° | 41° | 48° | — | — |
| 2019 | 57° | 44° | 51° | — | — |
| 2018 | 58° | 45° | 51° | — | — |
| 2017 | 56° | 47° | 51° | — | — |
| 2016 | 61° | 51° | 56° | 1.45" | — |
| 2015 | 52° | 33° | 42° | — | — |
| 2014 | 51° | 46° | 49° | 1.98" | — |
| 2013 | 59° | 36° | 47° | — | — |
| 2012 | 45° | 36° | 40° | — | — |
| 2011 | 69° | 41° | 55° | — | — |
| 2010 | 61° | 37° | 49° | — | — |
| 2009 | 52° | 44° | 48° | — | — |
| 2008 | 40° | 28° | 34° | — | — |
| 2007 | 55° | 35° | 45° | — | — |
| 2006 | 55° | 35° | 45° | — | — |
| 2005 | 55° | 30° | 43° | — | — |
| 2004 | 54° | 39° | 46° | — | — |
| 2003 | 53° | 36° | 44° | — | — |
| 2002 | 56° | 48° | 52° | — | — |
| 2001 | 54° | 36° | 45° | — | — |
| 2000 | 54° | 47° | 50° | — | — |
| 1999 | 56° | 34° | 45° | — | — |
| 1998 | 59° | 44° | 52° | — | — |
| 1997 | 53° | 38° | 45° | 0.28" | — |
| 1996 | 59° | 37° | 48° | — | — |
| 1995 | 57° | 47° | 52° | 0.94" | — |
| 1994 | 48° | 42° | 45° | 0.79" | — |
| 1993 | 55° | 39° | 47° | 0.38" | — |
| 1992 | 53° | 34° | 43° | — | — |
| 1991 | 43° | 36° | 39° | — | — |
| 1990 | 50° | 37° | 44° | 0.15" | — |
| 1989 | 60° | 31° | 45° | — | — |
| 1988 | 63° | 42° | 52° | — | — |
| 1987 | 53° | 33° | 43° | — | — |
| 1986 | 46° | 42° | 44° | — | — |
| 1985 | 50° | 26° | 38° | — | — |
| 1984 | 56° | 37° | 46° | — | — |
| 1983warmest | 65° | 53° | 59° | 0.03" | — |
| 1982 | 46° | 40° | 43° | — | — |
| 1981 | 60° | 50° | 55° | — | — |
| 1980 | 52° | 28° | 40° | — | — |
| 1979 | 58° | 28° | 43° | — | — |
| 1978 | 62° | 34° | 48° | — | — |
| 1977 | 62° | 43° | 52° | 0.99" | — |
| 1976 | 64° | 28° | 46° | — | — |
| 1975 | 54° | 23° | 38° | — | — |
| 1974 | 53° | 44° | 49° | — | — |
| 1973 | 59° | 40° | 49° | 0.05" | — |
| 1972coldest | 32° | 22° | 27° | — | — |
| 1971 | 50° | 36° | 43° | 0.03" | — |
55 years of data from ANTIOCH FIBREBRD MILLS