Weather on January 4
Santa Rosa, CA
55 Years of Data
Avg High
56°F
Avg Low
39°F
Warmest
2026
59°F avg
Coldest
1993
38°F avg
About This Date
January 4th in Santa Rosa, CA typically brings cool winter weather, with average highs around 56°F and lows near 39°F. Over 56 years of records, the warmest January 4th was in 2026 (59°F average), while the coldest was 1993 (38°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 45% of January 4th dates historically, with the wettest January 4th recording 7.8" of rain. The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.9°F warmer on this date compared to 20-30 years ago.
Planning for January 4th in Santa Rosa, 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° | 56° | 59° | 1.14" | — |
| 2025 | 58° | 42° | 50° | — | — |
| 2024 | 62° | 38° | 50° | 0.03" | — |
| 2023 | 56° | 43° | 49° | 2.08" | — |
| 2022 | 60° | 50° | 55° | 0.43" | — |
| 2021 | 60° | 49° | 54° | 2.13" | — |
| 2020 | 58° | 40° | 49° | 0.33" | — |
| 2019 | 56° | 31° | 43° | — | — |
| 2018 | 59° | 51° | 55° | 0.28" | — |
| 2017 | 54° | 42° | 48° | — | — |
| 2016 | 51° | 43° | 47° | — | — |
| 2015 | 57° | 37° | 47° | — | — |
| 2014 | 68° | 46° | 57° | — | — |
| 2013 | 56° | 39° | 47° | — | — |
| 2012 | 72° | 35° | 53° | — | — |
| 2011 | 57° | 29° | 43° | — | — |
| 2010 | 60° | 43° | 51° | — | — |
| 2009 | 55° | 28° | 42° | — | — |
| 2008 | 56° | 48° | 52° | 5.77" | — |
| 2007 | 55° | 46° | 51° | 0.3" | — |
| 2006 | 65° | 50° | 57° | 0.46" | — |
| 2005 | 53° | 38° | 45° | 0.23" | — |
| 2004 | 53° | 27° | 40° | — | — |
| 2003 | 62° | 45° | 53° | — | — |
| 2002 | 57° | 37° | 47° | — | — |
| 2001 | 63° | 35° | 49° | — | — |
| 2000 | 54° | 39° | 46° | 0.08" | — |
| 1999 | 55° | 32° | 44° | — | — |
| 1998 | 54° | 43° | 48° | 1.96" | — |
| 1997 | 56° | 39° | 47° | 0.03" | — |
| 1996 | 60° | 39° | 50° | — | — |
| 1995 | 53° | 47° | 50° | 1.65" | — |
| 1994 | 50° | 44° | 47° | 0.41" | — |
| 1993coldest | 49° | 28° | 38° | — | — |
| 1992 | 56° | 48° | 52° | 0.05" | — |
| 1991 | 57° | 39° | 48° | — | — |
| 1990 | 56° | 30° | 43° | — | — |
| 1989 | 51° | 31° | 41° | — | — |
| 1988 | 50° | 44° | 47° | 4.14" | — |
| 1987 | 51° | 43° | 47° | 0.61" | — |
| 1986 | 56° | 48° | 52° | 2.08" | — |
| 1985 | 55° | 29° | 42° | — | — |
| 1984 | 52° | 43° | 47° | — | — |
| 1983 | 49° | 38° | 43° | — | — |
| 1982 | 48° | 41° | 45° | 7.8" | — |
| 1981 | 56° | 47° | 51° | 0.43" | — |
| 1980 | 56° | 42° | 49° | 0.05" | — |
| 1979 | 58° | 34° | 46° | — | — |
| 1978 | 58° | 49° | 53° | 0.76" | — |
| 1977 | 58° | 32° | 45° | — | — |
| 1976 | 56° | 29° | 42° | — | — |
| 1975 | 59° | 37° | 48° | — | — |
| 1974 | 48° | 36° | 42° | 1.02" | — |
| 1973 | 56° | 27° | 41° | — | — |
| 1972 | 57° | 28° | 43° | — | — |
| 1971 | 55° | 26° | 41° | — | — |
56 years of data from SANTA ROSA