Weather on October 18
Chico, CA
55 Years of Data
Avg High
79°F
Avg Low
48°F
Warmest
2020
81°F avg
Coldest
1984
47°F avg
About This Date
October 18th in Chico, CA typically brings pleasant fall weather, with average highs around 79°F and lows near 48°F — a 31°F daily swing. Over 54 years of records, the warmest October 18th was in 2020 (81°F average), while the coldest was 1984 (47°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 4% of October 18th dates historically, with the wettest October 18th recording 0.66" of rain. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for October 18th in Chico, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 60° | 68° | — | — |
| 2024 | 72° | 50° | 61° | — | — |
| 2023 | 87° | 50° | 69° | — | — |
| 2022 | 84° | 64° | 74° | — | — |
| 2021 | 76° | 46° | 61° | 0.41" | — |
| 2020warmest | 89° | 73° | 81° | — | — |
| 2019 | 73° | 47° | 60° | — | — |
| 2018 | 89° | 40° | 64° | — | — |
| 2017 | 82° | 40° | 61° | — | — |
| 2016 | 64° | 51° | 58° | — | — |
| 2015 | 69° | 54° | 61° | — | — |
| 2014 | 76° | 58° | 67° | — | — |
| 2013 | 83° | 39° | 61° | — | — |
| 2012 | 90° | 48° | 69° | — | — |
| 2011 | 87° | 53° | 70° | — | — |
| 2010 | 89° | 41° | 65° | — | — |
| 2009 | 72° | 55° | 63° | — | — |
| 2008 | 81° | 48° | 64° | — | — |
| 2007 | 66° | 56° | 61° | — | — |
| 2006 | 75° | 35° | 55° | — | — |
| 2005 | 92° | 52° | 72° | — | — |
| 2004 | 87° | 46° | 67° | — | — |
| 2003 | 84° | 51° | 68° | — | — |
| 2002 | 73° | 45° | 59° | — | — |
| 2001 | 80° | 45° | 62° | — | — |
| 2000 | 84° | 49° | 66° | — | — |
| 1999 | 80° | 37° | 59° | — | — |
| 1998 | 83° | 43° | 63° | — | — |
| 1997 | 86° | 44° | 65° | — | — |
| 1996 | 77° | 39° | 58° | 0.66" | — |
| 1995 | 78° | 50° | 64° | — | — |
| 1994 | 74° | 38° | 56° | — | — |
| 1993 | 78° | 42° | 60° | — | — |
| 1992 | 81° | 49° | 65° | — | — |
| 1991 | 92° | 51° | 71° | — | — |
| 1990 | 62° | 47° | 54° | — | — |
| 1989 | 83° | 49° | 66° | — | — |
| 1988 | — | 53° | — | — | — |
| 1987 | 87° | 41° | 64° | — | — |
| 1986 | 65° | 39° | 52° | — | — |
| 1985 | 75° | 53° | 64° | — | — |
| 1984coldest | 61° | 33° | 47° | — | — |
| 1983 | 80° | 45° | 62° | — | — |
| 1982 | 86° | 44° | 65° | — | — |
| 1981 | 73° | 53° | 63° | — | — |
| 1979 | 83° | 48° | 65° | — | — |
| 1978 | 85° | 49° | 67° | — | — |
| 1977 | 85° | 47° | 66° | — | — |
| 1976 | 84° | 45° | 64° | — | — |
| 1975 | 76° | 52° | 64° | — | — |
| 1974 | 89° | 44° | 67° | — | — |
| 1973 | 78° | 58° | 68° | — | — |
| 1972 | 74° | 49° | 61° | — | — |
| 1971 | 65° | 37° | 51° | — | — |
54 years of data from CHICO UNIV FARM