Weather on January 20
Vacaville, CA
55 Years of Data
Avg High
58°F
Avg Low
38°F
Warmest
1971
57°F avg
Coldest
1992
39°F avg
About This Date
January 20th in Vacaville, CA typically brings cool winter weather, with average highs around 58°F and lows near 38°F. Over 56 years of records, the warmest January 20th was in 1971 (57°F average), while the coldest was 1992 (39°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 32% of January 20th dates historically, with the wettest January 20th recording 6.32" of rain. The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
Planning for January 20th in Vacaville, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 52° | 39° | 45° | — | — |
| 2025 | 64° | 32° | 48° | — | — |
| 2024 | 60° | 50° | 55° | 0.99" | — |
| 2023 | 56° | 34° | 45° | — | — |
| 2022 | 64° | 36° | 50° | — | — |
| 2021 | 70° | 38° | 54° | — | — |
| 2020 | 53° | 41° | 47° | — | — |
| 2019 | 63° | 47° | 55° | 0.41" | — |
| 2018 | 61° | 36° | 48° | — | — |
| 2017 | 56° | 46° | 51° | 2.62" | — |
| 2016 | 60° | 43° | 51° | — | — |
| 2015 | 62° | 38° | 50° | — | — |
| 2014 | 70° | 30° | 50° | — | — |
| 2013 | 65° | 25° | 45° | — | — |
| 2012 | 56° | 42° | 49° | 5.46" | — |
| 2011 | 65° | 37° | 51° | — | — |
| 2010 | 53° | 46° | 50° | 4.19" | — |
| 2009 | 72° | 39° | 55° | — | — |
| 2008 | 54° | 37° | 45° | — | — |
| 2007 | 68° | 29° | 48° | — | — |
| 2006 | 56° | 32° | 44° | 0.03" | — |
| 2005 | 48° | 41° | 45° | 0.03" | — |
| 2004 | 60° | 37° | 49° | 0.03" | — |
| 2003 | 45° | 41° | 43° | 0.25" | — |
| 2002 | 57° | 32° | 45° | — | — |
| 2001 | 53° | 32° | 43° | — | — |
| 2000 | 60° | 45° | 52° | — | — |
| 1999 | 57° | 51° | 54° | 0.05" | — |
| 1998 | 54° | 39° | 46° | 0.03" | — |
| 1997 | 57° | 41° | 49° | 0.56" | — |
| 1996 | 55° | 39° | 47° | — | — |
| 1995 | 51° | 39° | 45° | 1.3" | — |
| 1994 | 64° | 34° | 49° | — | — |
| 1993 | 57° | 45° | 51° | 6.32" | — |
| 1992coldest | 44° | 34° | 39° | — | — |
| 1991 | 65° | 45° | 55° | — | — |
| 1990 | 60° | 31° | 45° | — | — |
| 1989 | 62° | 35° | 49° | — | — |
| 1988 | 60° | 30° | 45° | — | — |
| 1987 | 67° | 32° | 49° | — | — |
| 1986 | 59° | 40° | 49° | — | — |
| 1985 | 44° | 38° | 41° | — | — |
| 1984 | 53° | 30° | 42° | — | — |
| 1983 | 55° | 30° | 43° | — | — |
| 1982 | 58° | 39° | 48° | 1.57" | — |
| 1981 | 59° | 50° | 55° | 0.05" | — |
| 1980 | 58° | 32° | 45° | — | — |
| 1979 | 53° | 33° | 43° | — | — |
| 1978 | 62° | 42° | 52° | — | — |
| 1977 | 47° | 35° | 41° | — | — |
| 1976 | 69° | 33° | 51° | — | — |
| 1975 | 51° | 37° | 44° | — | — |
| 1974 | 59° | 45° | 52° | — | — |
| 1973 | 53° | 38° | 45° | — | — |
| 1972 | 51° | 41° | 46° | 0.03" | — |
| 1971warmest | 65° | 50° | 57° | 0.03" | — |
56 years of data from VACAVILLE/NUT TREE AP ASOS