Weather on December 20
Tracy, CA
55 Years of Data
Avg High
54°F
Avg Low
36°F
Warmest
1981
59°F avg
Coldest
1989
33°F avg
About This Date
December 20th in Tracy, CA typically brings cool winter weather, with average highs around 54°F and lows near 36°F. Over 55 years of records, the warmest December 20th was in 1981 (59°F average), while the coldest was 1989 (33°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 31% of December 20th dates historically, with the wettest December 20th recording 2.36" of rain. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in Tracy, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 43° | 51° | — | — |
| 2024 | 51° | 40° | 45° | — | — |
| 2023 | 65° | 51° | 58° | 0.76" | — |
| 2022 | 42° | 33° | 38° | — | — |
| 2021 | 53° | 28° | 41° | 0.03" | — |
| 2020 | 57° | 32° | 45° | — | — |
| 2019 | 60° | 30° | 45° | — | — |
| 2018 | 60° | 41° | 51° | — | — |
| 2017 | 64° | 32° | 48° | 0.18" | — |
| 2016 | 52° | 25° | 38° | — | — |
| 2015 | 55° | 43° | 49° | 0.03" | — |
| 2014 | 59° | 52° | 55° | 0.71" | — |
| 2013 | 60° | 38° | 49° | — | — |
| 2012 | 51° | 20° | 35° | — | — |
| 2011 | 58° | 28° | 43° | — | — |
| 2010 | 61° | 50° | 55° | — | — |
| 2009 | 58° | 44° | 51° | — | — |
| 2008 | 50° | 36° | 43° | 0.1" | — |
| 2007 | 57° | 37° | 47° | 0.28" | — |
| 2006 | 51° | 31° | 41° | — | — |
| 2005 | 60° | 45° | 52° | — | — |
| 2004 | 43° | 37° | 40° | — | — |
| 2003 | 52° | 46° | 49° | 0.91" | — |
| 2002 | 52° | 34° | 43° | 2.36" | — |
| 2001 | 49° | 35° | 42° | 0.08" | — |
| 2000 | 59° | 32° | 46° | — | — |
| 1999 | 64° | 31° | 47° | — | — |
| 1998 | 46° | 37° | 42° | 0.13" | — |
| 1997 | 52° | 32° | 42° | — | — |
| 1996 | 43° | 36° | 39° | — | — |
| 1995 | 47° | 37° | 42° | 0.05" | — |
| 1994 | 52° | 44° | 48° | — | — |
| 1993 | 39° | 26° | 33° | — | — |
| 1992 | 54° | 35° | 44° | — | — |
| 1991 | 58° | 34° | 46° | — | — |
| 1990 | 47° | 29° | 38° | — | — |
| 1989coldest | 39° | 27° | 33° | — | — |
| 1988 | 50° | 37° | 44° | 1.35" | — |
| 1987 | 56° | — | — | — | — |
| 1986 | 59° | 33° | 46° | — | — |
| 1985 | 40° | 31° | 35° | — | — |
| 1984 | 56° | 36° | 46° | — | — |
| 1983 | 54° | 41° | 47° | — | — |
| 1982 | 45° | 38° | 41° | 0.38" | — |
| 1981warmest | 69° | 48° | 59° | 0.36" | — |
| 1980 | 61° | 39° | 50° | — | — |
| 1979 | 50° | 39° | 45° | 0.69" | — |
| 1978 | 50° | 30° | 40° | — | — |
| 1977 | 53° | 34° | 43° | — | — |
| 1976 | 62° | 34° | 48° | — | — |
| 1975 | 55° | 33° | 44° | — | — |
| 1974 | 47° | 42° | 44° | — | — |
| 1973 | 45° | 41° | 43° | — | — |
| 1972 | 62° | 52° | 57° | 0.05" | — |
| 1971 | 55° | 31° | 43° | — | — |
55 years of data from TRACY CARBONA