Weather on May 15
Chico, CA
55 Years of Data
Avg High
81°F
Avg Low
54°F
Warmest
1987
82°F avg
Coldest
1982
48°F avg
About This Date
May 15th in Chico, CA typically brings warm spring weather, with average highs around 81°F and lows near 54°F — a 27°F daily swing. Over 55 years of records, the warmest May 15th was in 1987 (82°F average), while the coldest was 1982 (48°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 5% of May 15th dates historically, with the wettest May 15th recording 0.69" of rain. The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.
Planning for May 15th in Chico, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 61° | 69° | — | — |
| 2024 | 91° | 69° | 80° | — | — |
| 2023 | 95° | 56° | 75° | — | — |
| 2022 | 85° | 65° | 75° | — | — |
| 2021 | 73° | 48° | 61° | — | — |
| 2020 | 73° | 52° | 62° | — | — |
| 2019 | 74° | 58° | 66° | — | — |
| 2018 | 82° | 53° | 68° | — | — |
| 2017 | 73° | 41° | 57° | — | — |
| 2016 | 77° | 53° | 65° | — | — |
| 2015 | 69° | 50° | 60° | — | — |
| 2014 | 88° | 75° | 81° | — | — |
| 2013 | 80° | 59° | 70° | — | — |
| 2012 | 80° | 52° | 66° | — | — |
| 2011 | 56° | 45° | 50° | — | — |
| 2010 | 85° | 53° | 69° | — | — |
| 2009 | 93° | 55° | 74° | — | — |
| 2008 | 95° | 70° | 82° | — | — |
| 2007 | 95° | 63° | 79° | — | — |
| 2006 | 98° | 63° | 80° | — | — |
| 2005 | 70° | 64° | 67° | — | — |
| 2004 | 82° | 60° | 71° | — | — |
| 2003 | 88° | 54° | 71° | — | — |
| 2002 | 88° | 46° | 67° | — | — |
| 2001 | 76° | 55° | 65° | — | — |
| 2000 | 69° | 49° | 59° | 0.69" | — |
| 1999 | 73° | 42° | 58° | — | — |
| 1998 | 66° | 46° | 56° | — | — |
| 1997 | 90° | 60° | 75° | — | — |
| 1996 | 78° | 61° | 69° | — | — |
| 1995 | 65° | 47° | 56° | 0.58" | — |
| 1994 | 81° | 53° | 67° | 0.03" | — |
| 1993 | 79° | 48° | 63° | — | — |
| 1992 | 86° | 51° | 69° | — | — |
| 1991 | 78° | 44° | 61° | — | — |
| 1990 | 80° | 48° | 64° | — | — |
| 1989 | 81° | 51° | 66° | — | — |
| 1988 | 89° | 52° | 70° | — | — |
| 1987warmest | 101° | 63° | 82° | — | — |
| 1986 | 84° | 46° | 65° | — | — |
| 1985 | 85° | 47° | 66° | — | — |
| 1984 | 72° | 49° | 60° | — | — |
| 1983 | 79° | 51° | 65° | — | — |
| 1982coldest | 59° | 37° | 48° | — | — |
| 1981 | 76° | 55° | 65° | — | — |
| 1980 | 78° | 51° | 65° | — | — |
| 1979 | 91° | 53° | 72° | — | — |
| 1978 | 77° | 52° | 64° | — | — |
| 1977 | 70° | 49° | 59° | — | — |
| 1976 | 88° | 55° | 71° | — | — |
| 1975 | 74° | 45° | 59° | — | — |
| 1974 | 79° | 49° | 64° | — | — |
| 1973 | 87° | 63° | 75° | — | — |
| 1972 | 90° | 61° | 75° | — | — |
| 1971 | 85° | 53° | 69° | — | — |
55 years of data from CHICO UNIV FARM