Weather on December 18
Tracy, CA
55 Years of Data
Avg High
56°F
Avg Low
36°F
Warmest
1986
59°F avg
Coldest
1985
37°F avg
About This Date
December 18th in Tracy, CA typically brings cool winter weather, with average highs around 56°F and lows near 36°F. Over 55 years of records, the warmest December 18th was in 1986 (59°F average), while the coldest was 1985 (37°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 35% of December 18th dates historically, with the wettest December 18th recording 2.44" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 18th in Tracy, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 43° | 54° | — | — |
| 2024 | 51° | 32° | 42° | 0.03" | — |
| 2023 | 62° | 42° | 52° | 0.86" | — |
| 2022 | 55° | 32° | 44° | — | — |
| 2021 | 53° | 34° | 43° | 0.03" | — |
| 2020 | 61° | 32° | 46° | — | — |
| 2019 | 54° | 31° | 42° | — | — |
| 2018 | 61° | 34° | 47° | 0.08" | — |
| 2017 | 62° | 29° | 45° | — | — |
| 2016 | 51° | 30° | 41° | — | — |
| 2015 | 56° | 29° | 42° | — | — |
| 2014 | 60° | 46° | 53° | 0.58" | — |
| 2013 | 60° | 32° | 46° | — | — |
| 2012 | 52° | 40° | 46° | 0.03" | — |
| 2011 | 55° | 32° | 44° | — | — |
| 2010 | 55° | 48° | 52° | 0.46" | — |
| 2009 | 59° | 44° | 52° | — | — |
| 2008 | 29° | 50° | 39° | — | — |
| 2007 | 55° | 43° | 49° | 1.02" | — |
| 2006 | 54° | 33° | 43° | — | — |
| 2005 | 57° | 44° | 51° | 2.44" | — |
| 2004 | 57° | 31° | 44° | 0.03" | — |
| 2003 | 55° | 34° | 44° | — | — |
| 2002 | 60° | 39° | 50° | 0.18" | — |
| 2001 | 50° | 39° | 45° | — | — |
| 2000 | 62° | 31° | 46° | — | — |
| 1999 | 57° | 36° | 46° | — | — |
| 1998 | 64° | 32° | 48° | — | — |
| 1997 | 57° | 32° | 45° | — | — |
| 1996 | 46° | 36° | 41° | — | — |
| 1995 | 58° | 36° | 47° | — | — |
| 1994 | 46° | 40° | 43° | — | — |
| 1993 | 52° | 27° | 39° | — | — |
| 1992 | 51° | 34° | 42° | 0.43" | — |
| 1991 | 57° | 34° | 45° | 0.08" | — |
| 1990 | 57° | 31° | 44° | — | — |
| 1989 | 52° | 29° | 40° | — | — |
| 1988 | 57° | 36° | 46° | 0.25" | — |
| 1987 | — | 30° | — | — | — |
| 1986warmest | 64° | 53° | 59° | 0.58" | — |
| 1985coldest | 44° | 31° | 37° | — | — |
| 1984 | 48° | 33° | 41° | — | — |
| 1983 | 56° | 47° | 51° | — | — |
| 1982 | 57° | 39° | 48° | — | — |
| 1981 | 59° | 39° | 49° | 0.15" | — |
| 1980 | 62° | 36° | 49° | — | — |
| 1979 | 53° | 24° | 39° | — | — |
| 1978 | 56° | 39° | 47° | 0.13" | — |
| 1977 | 56° | 35° | 45° | 0.3" | — |
| 1976 | 56° | 32° | 44° | — | — |
| 1975 | 60° | 27° | 43° | — | — |
| 1974 | 62° | 30° | 46° | — | — |
| 1973 | 59° | 41° | 50° | — | — |
| 1972 | 46° | 41° | 44° | 0.46" | — |
| 1971 | 54° | 26° | 40° | — | — |
55 years of data from TRACY CARBONA