Weather on January 3
Vacaville, CA
55 Years of Data
Avg High
54°F
Avg Low
36°F
Warmest
2026
58°F avg
Coldest
1974
36°F avg
About This Date
January 3rd in Vacaville, CA typically brings cool winter weather, with average highs around 54°F and lows near 36°F. Over 56 years of records, the warmest January 3rd was in 2026 (58°F average), while the coldest was 1974 (36°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 34% of January 3rd dates historically, with the wettest January 3rd recording 5.11" 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 January 3rd in Vacaville, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 63° | 53° | 58° | 1.8" | — |
| 2025 | 62° | 43° | 52° | 0.28" | — |
| 2024 | 57° | 37° | 47° | 0.28" | — |
| 2023 | 47° | 41° | 44° | — | — |
| 2022 | 53° | 39° | 46° | 1.24" | — |
| 2021 | 60° | 41° | 51° | — | — |
| 2020 | 58° | 36° | 47° | — | — |
| 2019 | 56° | 28° | 42° | — | — |
| 2018 | 58° | 41° | 49° | 1.02" | — |
| 2017 | 50° | 45° | 47° | 5.11" | — |
| 2016 | 57° | 37° | 47° | — | — |
| 2015 | 54° | 27° | 41° | — | — |
| 2014 | 66° | 31° | 49° | — | — |
| 2013 | 54° | 24° | 39° | — | — |
| 2012 | 66° | 33° | 50° | — | — |
| 2011 | 52° | 34° | 43° | — | — |
| 2010 | 55° | — | — | — | — |
| 2009 | 56° | 35° | 45° | — | — |
| 2008 | 57° | 39° | 48° | 1.83" | — |
| 2007 | 59° | 33° | 46° | — | — |
| 2006 | 53° | 45° | 49° | 0.43" | — |
| 2005 | 48° | 43° | 45° | 0.99" | — |
| 2004 | 51° | 28° | 40° | — | — |
| 2003 | 61° | 38° | 49° | — | — |
| 2002 | 58° | 40° | 49° | — | — |
| 2001 | 63° | 29° | 46° | — | — |
| 2000 | 56° | 31° | 43° | — | — |
| 1999 | 53° | 32° | 43° | — | — |
| 1998 | 59° | 46° | 53° | 0.84" | — |
| 1997 | 61° | 46° | 53° | 0.28" | — |
| 1996 | 62° | 39° | 51° | — | — |
| 1995 | 50° | 42° | 46° | 2.16" | — |
| 1994 | 50° | 41° | 46° | — | — |
| 1993 | 47° | 26° | 36° | — | — |
| 1992 | 54° | 34° | 44° | — | — |
| 1991 | 53° | 32° | 43° | — | — |
| 1990 | 56° | 29° | 42° | — | — |
| 1989 | 46° | 29° | 37° | — | — |
| 1988 | 44° | 40° | 42° | 2.16" | — |
| 1987 | 53° | 46° | 50° | 1.27" | — |
| 1986 | 54° | 42° | 48° | — | — |
| 1985 | 55° | 25° | 40° | — | — |
| 1984 | 48° | 35° | 42° | — | — |
| 1983 | 44° | 32° | 38° | — | — |
| 1982 | 45° | 28° | 36° | 0.08" | — |
| 1981 | 52° | 40° | 46° | 0.08" | — |
| 1980 | 52° | 38° | 45° | — | — |
| 1979 | 53° | 29° | 41° | — | — |
| 1978 | 55° | 45° | 50° | 0.28" | — |
| 1977 | 59° | 43° | 51° | 0.48" | — |
| 1976 | 50° | 25° | 37° | — | — |
| 1975 | 56° | 25° | 40° | — | — |
| 1974coldest | 45° | 27° | 36° | 0.03" | — |
| 1973 | 53° | 26° | 40° | — | — |
| 1972 | 48° | 32° | 40° | — | — |
| 1971 | 49° | 32° | 40° | — | — |
56 years of data from VACAVILLE/NUT TREE AP ASOS