Weather on October 15
Irvine, CA
55 Years of Data
Avg High
80°F
Avg Low
55°F
Warmest
1997
82°F avg
Coldest
1980
54°F avg
About This Date
October 15th in Irvine, CA typically brings warm fall weather, with average highs around 80°F and lows near 55°F — a 25°F daily swing. Over 55 years of records, the warmest October 15th was in 1997 (82°F average), while the coldest was 1980 (54°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 2% of October 15th dates historically, with the wettest October 15th recording 1.27" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for October 15th in Irvine, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 53° | 62° | — | — |
| 2024 | 76° | 60° | 68° | — | — |
| 2023 | 84° | 55° | 70° | — | — |
| 2022 | 68° | 58° | 63° | 1.27" | — |
| 2021 | 89° | 57° | 73° | — | — |
| 2020 | 97° | 63° | 80° | — | — |
| 2019 | 86° | 53° | 70° | — | — |
| 2018 | 79° | 45° | 62° | — | — |
| 2017 | 96° | 58° | 77° | — | — |
| 2016 | 76° | 58° | 67° | — | — |
| 2015 | 85° | 68° | 76° | — | — |
| 2014 | 83° | 62° | 72° | — | — |
| 2013 | 90° | 58° | 74° | — | — |
| 2012 | 94° | 61° | 77° | — | — |
| 2011 | 81° | 58° | 69° | — | — |
| 2010 | 72° | 56° | 64° | — | — |
| 2009 | 84° | 53° | 69° | — | — |
| 2008 | 95° | 59° | 77° | — | — |
| 2007 | 65° | 50° | 57° | — | — |
| 2006 | 70° | 51° | 60° | — | — |
| 2005 | 79° | 52° | 65° | — | — |
| 2004 | 84° | 57° | 71° | — | — |
| 2003 | 83° | 54° | 68° | — | — |
| 2002 | 74° | 55° | 64° | — | — |
| 2001 | 94° | 53° | 73° | — | — |
| 2000 | 77° | 50° | 64° | — | — |
| 1999 | 78° | 60° | 69° | — | — |
| 1998 | 76° | 60° | 68° | — | — |
| 1997warmest | 106° | 58° | 82° | — | — |
| 1996 | 79° | 53° | 66° | — | — |
| 1995 | 78° | 54° | 66° | — | — |
| 1994 | 75° | 59° | 67° | — | — |
| 1993 | 78° | 56° | 67° | — | — |
| 1992 | 75° | 57° | 66° | — | — |
| 1991 | 79° | 57° | 68° | — | — |
| 1990 | 75° | 61° | 68° | — | — |
| 1989 | 72° | 52° | 62° | — | — |
| 1988 | 77° | 49° | 63° | — | — |
| 1987 | 73° | 61° | 67° | — | — |
| 1986 | 84° | 50° | 67° | — | — |
| 1985 | 90° | 70° | 80° | — | — |
| 1984 | 77° | 55° | 66° | — | — |
| 1983 | 71° | 58° | 64° | — | — |
| 1982 | 86° | 52° | 69° | — | — |
| 1981 | 67° | 42° | 54° | — | — |
| 1980coldest | 63° | 45° | 54° | — | — |
| 1979 | 81° | 59° | 70° | — | — |
| 1978 | 83° | 55° | 69° | — | — |
| 1977 | 83° | 55° | 69° | — | — |
| 1976 | 81° | 61° | 71° | — | — |
| 1975 | 85° | 47° | 66° | — | — |
| 1974 | 83° | 49° | 66° | — | — |
| 1973 | 89° | 49° | 69° | — | — |
| 1972 | 75° | 47° | 61° | — | — |
| 1971 | 69° | 58° | 63° | — | — |
55 years of data from IRVINE RCH