Weather on March 18
Chico, CA
55 Years of Data
Avg High
67°F
Avg Low
43°F
Warmest
2026
69°F avg
Coldest
2020
39°F avg
About This Date
March 18th in Chico, CA typically brings mild spring weather, with average highs around 67°F and lows near 43°F. Over 56 years of records, the warmest March 18th was in 2026 (69°F average), while the coldest was 2020 (39°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 18% of March 18th dates historically, with the wettest March 18th recording 2.39" of rain. The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
Planning for March 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 |
|---|---|---|---|---|---|
| 2026warmest | 88° | 51° | 69° | — | — |
| 2025 | 55° | 40° | 47° | — | — |
| 2024 | 71° | 53° | 62° | — | — |
| 2023 | 62° | 51° | 57° | — | — |
| 2022 | 69° | 51° | 60° | — | — |
| 2021 | 48° | 45° | 46° | — | — |
| 2020coldest | 43° | 36° | 39° | — | — |
| 2019 | 75° | 57° | 66° | — | — |
| 2018 | 58° | 34° | 46° | — | — |
| 2017 | 77° | 45° | 61° | — | — |
| 2016 | 79° | 41° | 60° | — | — |
| 2015 | 73° | 56° | 64° | — | — |
| 2014 | 72° | 42° | 57° | — | — |
| 2013 | 80° | 39° | 60° | — | — |
| 2012 | 53° | 35° | 44° | — | — |
| 2011 | 50° | 44° | 47° | — | — |
| 2010 | 77° | 41° | 59° | — | — |
| 2009 | 73° | 39° | 56° | — | — |
| 2008 | 75° | 47° | 61° | — | — |
| 2007 | 81° | 50° | 65° | — | — |
| 2006 | 63° | 34° | 48° | — | — |
| 2005 | 69° | 50° | 60° | — | — |
| 2004 | 88° | 48° | 68° | — | — |
| 2003 | 65° | 37° | 51° | — | — |
| 2002 | 58° | 32° | 45° | — | — |
| 2001 | 74° | 39° | 56° | — | — |
| 2000 | 74° | 49° | 61° | — | — |
| 1999 | 66° | 43° | 54° | — | — |
| 1998 | 73° | 41° | 57° | — | — |
| 1997 | 66° | 42° | 54° | — | — |
| 1996 | 82° | 43° | 62° | — | — |
| 1995 | 68° | 48° | 58° | 1.02" | — |
| 1994 | 70° | 44° | 57° | — | — |
| 1993 | 70° | 52° | 61° | — | — |
| 1992 | 64° | 37° | 51° | 0.03" | — |
| 1991 | 50° | 41° | 46° | 2.39" | — |
| 1990 | 74° | 44° | 59° | — | — |
| 1989 | 58° | 50° | 54° | 2.16" | — |
| 1988 | 78° | 37° | 58° | — | — |
| 1987 | 62° | 38° | 50° | — | — |
| 1986 | 65° | 38° | 51° | — | — |
| 1985 | 61° | 46° | 53° | 0.18" | — |
| 1984 | 56° | 42° | 49° | — | — |
| 1983 | 55° | 41° | 48° | 0.13" | — |
| 1982 | 55° | 41° | 48° | 0.15" | — |
| 1981 | 64° | 43° | 53° | — | — |
| 1980 | 62° | 37° | 50° | 0.15" | — |
| 1979 | 62° | 48° | 55° | 0.03" | — |
| 1978 | 80° | 44° | 62° | — | — |
| 1977 | 60° | 31° | 45° | — | — |
| 1976 | 74° | 48° | 61° | — | — |
| 1975 | 57° | 43° | 50° | 0.36" | — |
| 1974 | 70° | 50° | 60° | — | — |
| 1973 | 61° | 31° | 46° | — | — |
| 1972 | 79° | — | — | — | — |
| 1971 | 70° | 32° | 51° | — | — |
56 years of data from CHICO UNIV FARM