Weather on October 21
Chico, CA
55 Years of Data
Avg High
77°F
Avg Low
48°F
Warmest
2020
77°F avg
Coldest
2004
48°F avg
About This Date
October 21st in Chico, CA typically brings pleasant fall weather, with average highs around 77°F and lows near 48°F — a 29°F daily swing. Over 55 years of records, the warmest October 21st was in 2020 (77°F average), while the coldest was 2004 (48°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 13% of October 21st dates historically, with the wettest October 21st recording 2.13" of rain. The last decade has been 6.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.2°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Chico, CA? Great weather for outdoor activities.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 64° | 72° | — | — |
| 2024 | 89° | 43° | 66° | — | — |
| 2023 | 74° | 56° | 65° | — | — |
| 2022 | 81° | 62° | 71° | — | — |
| 2021 | 63° | 54° | 58° | 0.3" | — |
| 2020warmest | 86° | 68° | 77° | — | — |
| 2019 | 81° | 62° | 71° | — | — |
| 2018 | 82° | 66° | 74° | — | — |
| 2017 | 65° | 41° | 53° | — | — |
| 2016 | 80° | 46° | 63° | — | — |
| 2015 | 80° | 63° | 71° | — | — |
| 2014 | 70° | 45° | 57° | 0.08" | — |
| 2013 | 82° | 39° | 61° | — | — |
| 2012 | 67° | 54° | 60° | — | — |
| 2011 | 81° | 52° | 66° | — | — |
| 2010 | 69° | 53° | 61° | — | — |
| 2009 | 76° | 44° | 60° | — | — |
| 2008 | 78° | 41° | 60° | — | — |
| 2007 | 75° | 37° | 56° | — | — |
| 2006 | 86° | 44° | 65° | — | — |
| 2005 | 81° | 44° | 62° | — | — |
| 2004coldest | 58° | 38° | 48° | 0.05" | — |
| 2003 | 90° | 51° | 70° | — | — |
| 2002 | 90° | 41° | 65° | — | — |
| 2001 | 76° | 47° | 61° | — | — |
| 2000 | 71° | 50° | 61° | — | — |
| 1999 | 85° | 42° | 63° | — | — |
| 1998 | 87° | 43° | 65° | — | — |
| 1997 | 84° | 45° | 64° | — | — |
| 1996 | 66° | 32° | 49° | — | — |
| 1995 | 76° | 51° | 63° | — | — |
| 1994 | 79° | 38° | 58° | — | — |
| 1993 | 77° | 50° | 64° | — | — |
| 1992 | 79° | 52° | 65° | 2.13" | — |
| 1991 | 83° | 57° | 70° | — | — |
| 1990 | 78° | 41° | 60° | — | — |
| 1989 | 81° | 56° | 68° | 0.46" | — |
| 1988 | — | 50° | — | — | — |
| 1987 | 83° | 46° | 64° | — | — |
| 1986 | 75° | 43° | 59° | — | — |
| 1985 | 65° | 47° | 56° | 1.7" | — |
| 1984 | 63° | 42° | 52° | — | — |
| 1983 | — | 47° | — | — | — |
| 1982 | 73° | 58° | 65° | — | — |
| 1981 | 82° | 46° | 64° | — | — |
| 1980 | 80° | 46° | 63° | — | — |
| 1979 | 60° | 38° | 49° | 0.38" | — |
| 1978 | 79° | 46° | 62° | — | — |
| 1977 | 65° | 44° | 54° | — | — |
| 1976 | 85° | 44° | 64° | — | — |
| 1975 | 80° | 47° | 63° | — | — |
| 1974 | 86° | 44° | 65° | — | — |
| 1973 | 67° | 54° | 60° | — | — |
| 1972 | 69° | 51° | 60° | — | — |
| 1971 | 72° | 38° | 55° | — | — |
55 years of data from CHICO UNIV FARM