Weather on December 31
Concord, CA
55 Years of Data
Avg High
55°F
Avg Low
39°F
Warmest
1996
62°F avg
Coldest
1978
36°F avg
About This Date
December 31st in Concord, CA typically brings cool winter weather, with average highs around 55°F and lows near 39°F. Over 55 years of records, the warmest December 31st was in 1996 (62°F average), while the coldest was 1978 (36°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 27% of December 31st dates historically, with the wettest December 31st recording 7.72" of rain. The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
Planning for December 31st in Concord, CA? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 49° | 43° | 46° | — | — |
| 2024 | 58° | 35° | 46° | — | — |
| 2023 | 58° | 46° | 52° | 0.43" | — |
| 2022 | 59° | 51° | 55° | 7.72" | — |
| 2021 | 54° | 35° | 44° | — | — |
| 2020 | 61° | 42° | 51° | 0.03" | — |
| 2019 | 65° | 38° | 51° | — | — |
| 2018 | 57° | 38° | 47° | — | — |
| 2017 | 61° | 39° | 50° | — | — |
| 2016 | 54° | 38° | 46° | — | — |
| 2015 | 52° | 29° | 41° | — | — |
| 2014 | 60° | 30° | 45° | — | — |
| 2013 | 63° | 34° | 48° | — | — |
| 2012 | 51° | 30° | 41° | — | — |
| 2011 | 59° | 36° | 47° | — | — |
| 2010 | 46° | 32° | 39° | — | — |
| 2009 | 57° | 48° | 53° | — | — |
| 2008 | 46° | 38° | 42° | — | — |
| 2007 | 54° | 31° | 42° | — | — |
| 2006 | 56° | 36° | 46° | — | — |
| 2005 | 62° | 50° | 56° | 5.69" | — |
| 2004 | 56° | 44° | 50° | 0.79" | — |
| 2003 | 57° | 39° | 48° | — | — |
| 2002 | 58° | 42° | 50° | 1.78" | — |
| 2001 | 59° | 48° | 54° | — | — |
| 2000 | 60° | 32° | 46° | — | — |
| 1999 | 55° | 34° | 44° | — | — |
| 1998 | 61° | 41° | 51° | — | — |
| 1997 | 59° | 41° | 50° | — | — |
| 1996warmest | 68° | 56° | 62° | 0.3" | — |
| 1995 | 66° | 56° | 61° | — | — |
| 1994 | 45° | 36° | 40° | 0.38" | — |
| 1993 | 52° | 38° | 45° | — | — |
| 1992 | 58° | 48° | 53° | — | — |
| 1991 | 56° | 46° | 51° | — | — |
| 1990 | 51° | 27° | 39° | — | — |
| 1989 | 53° | 34° | 43° | — | — |
| 1988 | 39° | 35° | 37° | 1.47" | — |
| 1987 | 49° | 31° | 40° | — | — |
| 1986 | 47° | 37° | 42° | 0.08" | — |
| 1985 | 58° | 48° | 53° | — | — |
| 1984 | 49° | 31° | 40° | — | — |
| 1983 | 60° | 45° | 52° | 0.1" | — |
| 1982 | 46° | 34° | 40° | — | — |
| 1981 | 57° | 50° | 54° | 0.13" | — |
| 1980 | 45° | 40° | 42° | — | — |
| 1979 | 64° | 46° | 55° | 0.13" | — |
| 1978coldest | 45° | 27° | 36° | — | — |
| 1977 | 55° | 38° | 46° | 0.03" | — |
| 1976 | 55° | 33° | 44° | 2.87" | — |
| 1975 | 57° | 40° | 48° | — | — |
| 1974 | 55° | 32° | 44° | — | — |
| 1973 | 52° | 34° | 43° | — | — |
| 1972 | 58° | 29° | 43° | — | — |
| 1971 | 52° | 33° | 42° | — | — |
55 years of data from CONCORD BUCHANAN FLD