Weather on January 9
Antioch, CA
55 Years of Data
Avg High
53°F
Avg Low
40°F
Warmest
2025
57°F avg
Coldest
2011
35°F avg
About This Date
January 9th in Antioch, CA typically brings cool winter weather, with average highs around 53°F and lows near 40°F. Over 56 years of records, the warmest January 9th was in 2025 (57°F average), while the coldest was 2011 (35°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 30% of January 9th dates historically, with the wettest January 9th recording 2.57" of rain. The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for January 9th in Antioch, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 42° | 40° | 41° | — | — |
| 2025warmest | 65° | 49° | 57° | — | — |
| 2024 | 50° | 39° | 45° | — | — |
| 2023 | 54° | 47° | 50° | — | — |
| 2022 | 46° | 41° | 44° | — | — |
| 2021 | 61° | 41° | 51° | — | — |
| 2020 | 52° | 42° | 47° | 0.38" | — |
| 2019 | 64° | 49° | 56° | 0.05" | — |
| 2018 | 53° | 44° | 49° | — | — |
| 2017 | 59° | 51° | 55° | 0.69" | — |
| 2016 | 56° | 44° | 50° | — | — |
| 2015 | 61° | 47° | 54° | — | — |
| 2014 | 62° | 47° | 54° | — | — |
| 2013 | 56° | 39° | 47° | — | — |
| 2012 | 70° | 36° | 53° | — | — |
| 2011coldest | 44° | 27° | 35° | — | — |
| 2010 | 46° | 39° | 43° | — | — |
| 2009 | 50° | 43° | 46° | — | — |
| 2008 | 47° | 43° | 45° | 0.13" | — |
| 2007 | 61° | 34° | 47° | — | — |
| 2006 | 57° | 39° | 48° | — | — |
| 2005 | 54° | 41° | 47° | 0.05" | — |
| 2004 | 60° | 42° | 51° | — | — |
| 2003 | 58° | 43° | 50° | — | — |
| 2002 | 62° | 39° | 51° | — | — |
| 2001 | 48° | 40° | 44° | — | — |
| 2000 | 60° | 38° | 49° | — | — |
| 1999 | 40° | 32° | 36° | — | — |
| 1998 | 46° | 44° | 45° | 0.03" | — |
| 1997 | 55° | 36° | 45° | — | — |
| 1996 | 48° | 43° | 45° | — | — |
| 1995 | 56° | 50° | 53° | — | — |
| 1994 | 49° | 36° | 42° | 0.08" | — |
| 1993 | 54° | 39° | 46° | 0.33" | — |
| 1992 | 51° | 30° | 41° | — | — |
| 1991 | 49° | 44° | 46° | 0.2" | — |
| 1990 | 64° | 49° | 56° | — | — |
| 1989 | 48° | 37° | 43° | 0.13" | — |
| 1988 | 50° | 44° | 47° | 0.03" | — |
| 1987 | 43° | 33° | 38° | — | — |
| 1986 | 60° | 39° | 50° | — | — |
| 1985 | 56° | 41° | 48° | 0.03" | — |
| 1984 | 46° | 43° | 44° | — | — |
| 1983 | 46° | 35° | 41° | — | — |
| 1982 | 49° | 29° | 39° | — | — |
| 1981 | 45° | 39° | 42° | — | — |
| 1980 | 53° | 46° | 50° | 0.43" | — |
| 1979 | 52° | 47° | 49° | 1.98" | — |
| 1978 | 57° | 50° | 54° | 1.5" | — |
| 1977 | 55° | 28° | 42° | — | — |
| 1976 | 59° | 34° | 46° | 0.25" | — |
| 1975 | — | 38° | — | — | — |
| 1974 | 54° | 29° | 41° | — | — |
| 1973 | 47° | 38° | 42° | 2.57" | — |
| 1972 | 54° | 27° | 40° | — | — |
| 1971 | 48° | 32° | 40° | — | — |
56 years of data from ANTIOCH FIBREBRD MILLS