Weather on January 21
Antioch, CA
55 Years of Data
Avg High
56°F
Avg Low
40°F
Warmest
1993
58°F avg
Coldest
1985
37°F avg
About This Date
January 21st in Antioch, CA typically brings cool winter weather, with average highs around 56°F and lows near 40°F. Over 55 years of records, the warmest January 21st was in 1993 (58°F average), while the coldest was 1985 (37°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 29% of January 21st dates historically, with the wettest January 21st recording 1.19" of rain. The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
Planning for January 21st in Antioch, CA? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 58° | 50° | 54° | — | — |
| 2025 | 59° | 44° | 52° | — | — |
| 2024 | 55° | 48° | 52° | — | — |
| 2023 | 50° | 39° | 45° | — | — |
| 2022 | 59° | 50° | 55° | — | — |
| 2021 | 64° | 38° | 51° | — | — |
| 2020 | 59° | 44° | 52° | 0.03" | — |
| 2019 | 58° | 48° | 53° | — | — |
| 2018 | 51° | 41° | 46° | — | — |
| 2017 | 56° | 44° | 50° | 0.71" | — |
| 2016 | 61° | 49° | 55° | 0.2" | — |
| 2015 | 60° | 36° | 48° | — | — |
| 2014 | 69° | 39° | 54° | — | — |
| 2013 | 59° | 33° | 46° | — | — |
| 2012 | 58° | 42° | 50° | — | — |
| 2011 | 65° | 41° | 53° | — | — |
| 2010 | 53° | 42° | 48° | — | — |
| 2009 | 58° | 47° | 52° | — | — |
| 2008 | 49° | 35° | 42° | 1.19" | — |
| 2007 | 62° | 31° | 46° | — | — |
| 2006 | 55° | 36° | 45° | 0.08" | — |
| 2005 | 43° | 39° | 41° | — | — |
| 2004 | 59° | 32° | 46° | — | — |
| 2003 | 48° | 44° | 46° | — | — |
| 2002 | 51° | 37° | 44° | — | — |
| 2001 | 50° | 38° | 44° | — | — |
| 2000 | 62° | 43° | 52° | — | — |
| 1999 | 59° | 47° | 53° | 0.18" | — |
| 1998 | 52° | 38° | 45° | — | — |
| 1997 | 58° | 44° | 51° | 0.05" | — |
| 1996 | 60° | 41° | 51° | 0.53" | — |
| 1995 | 47° | — | — | 0.69" | — |
| 1994 | 61° | 37° | 49° | — | — |
| 1993warmest | 65° | 51° | 58° | 1.17" | — |
| 1992 | 39° | 35° | 37° | — | — |
| 1991 | 64° | 45° | 54° | — | — |
| 1990 | 57° | 31° | 44° | — | — |
| 1989 | 58° | 32° | 45° | 0.05" | — |
| 1988 | 54° | 38° | 46° | — | — |
| 1987 | 56° | 31° | 43° | — | — |
| 1985coldest | 39° | 36° | 37° | — | — |
| 1984 | 50° | 40° | 45° | 0.05" | — |
| 1983 | 55° | 39° | 47° | — | — |
| 1982 | 42° | — | — | 0.91" | — |
| 1981 | 55° | 47° | 51° | 0.13" | — |
| 1980 | 57° | 33° | 45° | — | — |
| 1979 | 51° | 35° | 43° | — | — |
| 1978 | 61° | 39° | 50° | — | — |
| 1977 | 46° | 33° | 40° | 0.1" | — |
| 1976 | 65° | 31° | 48° | — | — |
| 1975 | — | 25° | — | — | — |
| 1974 | 57° | 45° | 51° | — | — |
| 1973 | 55° | 40° | 47° | 0.97" | — |
| 1972 | 56° | 42° | 49° | — | — |
| 1971 | 66° | 40° | 53° | — | — |
55 years of data from ANTIOCH FIBREBRD MILLS