Weather on December 31
Tracy, CA
55 Years of Data
Avg High
55°F
Avg Low
38°F
Warmest
1996
59°F avg
Coldest
1978
32°F avg
About This Date
December 31st in Tracy, CA typically brings cool winter weather, with average highs around 55°F and lows near 38°F. Over 55 years of records, the warmest December 31st was in 1996 (59°F average), while the coldest was 1978 (32°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 24% of December 31st dates historically, with the wettest December 31st recording 2.64" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for December 31st in Tracy, 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 | 54° | 35° | 44° | — | — |
| 2024 | 58° | 38° | 48° | — | — |
| 2023 | 66° | 52° | 59° | 2.64" | — |
| 2022 | 60° | 51° | 56° | 1.32" | — |
| 2021 | 54° | 39° | 46° | — | — |
| 2020 | — | 28° | — | 0.43" | — |
| 2019 | 61° | 42° | 51° | 0.03" | — |
| 2018 | 57° | 34° | 45° | — | — |
| 2017 | 60° | 40° | 50° | — | — |
| 2016 | 54° | 38° | 46° | — | — |
| 2015 | 48° | 35° | 42° | — | — |
| 2014 | 55° | 33° | 44° | — | — |
| 2013 | 61° | 36° | 48° | — | — |
| 2012 | 51° | 32° | 42° | 0.03" | — |
| 2011 | 62° | 43° | 52° | — | — |
| 2010 | 50° | 31° | 40° | — | — |
| 2009 | 58° | 48° | 53° | — | — |
| 2008 | 42° | 34° | 38° | — | — |
| 2007 | 50° | 39° | 45° | — | — |
| 2006 | 55° | 35° | 45° | — | — |
| 2005 | 65° | — | — | — | — |
| 2004 | 56° | 38° | 47° | — | — |
| 2003 | 50° | 41° | 46° | — | — |
| 2002 | 62° | 25° | 43° | 1.8" | — |
| 2001 | 56° | 50° | 53° | 0.56" | — |
| 2000 | 58° | 31° | 44° | — | — |
| 1999 | 55° | 43° | 49° | — | — |
| 1998 | 62° | 35° | 49° | 0.05" | — |
| 1997 | 55° | 29° | 42° | — | — |
| 1996warmest | 65° | 53° | 59° | — | — |
| 1995 | 68° | 46° | 57° | 0.03" | — |
| 1994 | 45° | 32° | 38° | — | — |
| 1993 | 47° | 37° | 42° | — | — |
| 1992 | 55° | 38° | 46° | — | — |
| 1991 | 60° | 39° | 50° | — | — |
| 1990 | 54° | — | — | — | — |
| 1989 | 50° | 34° | 42° | — | — |
| 1988 | 49° | 32° | 40° | — | — |
| 1987 | 50° | 44° | 47° | — | — |
| 1986 | 55° | 37° | 46° | — | — |
| 1985 | 55° | 49° | 52° | — | — |
| 1984 | 49° | 30° | 39° | — | — |
| 1983 | 60° | 50° | 55° | — | — |
| 1982 | 50° | 26° | 38° | — | — |
| 1981 | 58° | 48° | 53° | — | — |
| 1980 | 45° | 39° | 42° | 0.05" | — |
| 1979 | 58° | 48° | 53° | 0.15" | — |
| 1978coldest | 47° | 17° | 32° | — | — |
| 1977 | 60° | 41° | 51° | — | — |
| 1976 | 52° | 42° | 47° | 0.58" | — |
| 1975 | 57° | 36° | 46° | — | — |
| 1974 | 47° | 34° | 40° | 0.15" | — |
| 1973 | 58° | 37° | 47° | — | — |
| 1972 | 57° | 30° | 44° | — | — |
| 1971 | 49° | 30° | 39° | — | — |
55 years of data from TRACY CARBONA