Weather on October 31
Chico, CA
55 Years of Data
Avg High
70°F
Avg Low
45°F
Warmest
2020
71°F avg
Coldest
1971
46°F avg
About This Date
October 31st in Chico, CA typically brings pleasant fall weather, with average highs around 70°F and lows near 45°F — a 25°F daily swing. Over 55 years of records, the warmest October 31st was in 2020 (71°F average), while the coldest was 1971 (46°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 20% of October 31st dates historically, with the wettest October 31st recording 2.84" of rain. The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.
Planning for October 31st in Chico, CA? Great weather for outdoor activities.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 62° | 69° | — | — |
| 2024 | 57° | 46° | 52° | — | — |
| 2023 | 72° | 56° | 64° | — | — |
| 2022 | 68° | 53° | 61° | — | — |
| 2021 | 62° | 49° | 55° | — | — |
| 2020warmest | 80° | 63° | 71° | — | — |
| 2019 | 71° | 29° | 50° | — | — |
| 2018 | 76° | 45° | 60° | — | — |
| 2017 | 71° | 45° | 58° | — | — |
| 2016 | 62° | 53° | 58° | 0.41" | — |
| 2015 | 77° | 62° | 70° | — | — |
| 2014 | 77° | 50° | 64° | — | — |
| 2013 | 72° | 44° | 58° | — | — |
| 2012 | 63° | 52° | 57° | — | — |
| 2011 | 84° | 39° | 62° | — | — |
| 2010 | 70° | 49° | 59° | — | — |
| 2009 | 76° | 45° | 60° | — | — |
| 2008 | 78° | 50° | 64° | 1.75" | — |
| 2007 | 72° | 46° | 59° | — | — |
| 2006 | 69° | 30° | 50° | — | — |
| 2005 | 73° | 41° | 57° | — | — |
| 2004 | 66° | 37° | 52° | — | — |
| 2003 | 65° | 45° | 55° | 0.1" | — |
| 2002 | 69° | 31° | 50° | — | — |
| 2001 | 62° | 50° | 56° | 1.14" | — |
| 2000 | 59° | 35° | 47° | 0.13" | — |
| 1999 | 77° | 43° | 60° | — | — |
| 1998 | 72° | 36° | 54° | — | — |
| 1997 | 74° | 55° | 64° | — | — |
| 1996 | 63° | 49° | 56° | 0.13" | — |
| 1995 | 79° | 51° | 65° | — | — |
| 1994 | 77° | 37° | 57° | — | — |
| 1993 | 82° | 49° | 65° | — | — |
| 1992 | 65° | 53° | 59° | 0.03" | — |
| 1991 | 67° | 33° | 50° | — | — |
| 1990 | 71° | 55° | 63° | 1.27" | — |
| 1989 | 68° | 34° | 51° | — | — |
| 1988 | — | 46° | — | — | — |
| 1987 | 71° | 48° | 60° | — | — |
| 1986 | 70° | 43° | 56° | — | — |
| 1985 | 69° | 40° | 54° | — | — |
| 1984 | 62° | 39° | 51° | — | — |
| 1983 | 59° | 56° | 57° | 2.84" | — |
| 1982 | 71° | 39° | 55° | 0.61" | — |
| 1981 | 73° | 42° | 58° | — | — |
| 1980 | 68° | 38° | 53° | — | — |
| 1979 | 63° | 39° | 51° | — | — |
| 1978 | 64° | 43° | 53° | — | — |
| 1977 | 68° | 41° | 55° | — | — |
| 1976 | 69° | 40° | 54° | — | — |
| 1975 | 66° | 44° | 55° | — | — |
| 1974 | 63° | 50° | 56° | 1.37" | — |
| 1973 | 79° | 52° | 65° | — | — |
| 1972 | 63° | 34° | 48° | — | — |
| 1971coldest | 65° | 28° | 46° | — | — |
55 years of data from CHICO UNIV FARM