Weather on August 31
Irvine, CA
55 Years of Data
Avg High
89°F
Avg Low
61°F
Warmest
1995
91°F avg
Coldest
1979
63°F avg
About This Date
August 31st in Irvine, CA typically brings warm summer weather, with average highs around 89°F and lows near 61°F — a 28°F daily swing. Over 55 years of records, the warmest August 31st was in 1995 (91°F average), while the coldest was 1979 (63°F) — a 28°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 August 31st in Irvine, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 67° | 81° | — | — |
| 2024 | 86° | 59° | 73° | — | — |
| 2023 | 82° | 63° | 72° | — | — |
| 2022 | 102° | 67° | 84° | — | — |
| 2021 | 81° | 65° | 73° | — | — |
| 2020 | 83° | 60° | 71° | — | — |
| 2019 | 92° | 61° | 76° | — | — |
| 2018 | 88° | 58° | 73° | — | — |
| 2017 | 103° | 69° | 86° | — | — |
| 2016 | 94° | 65° | 79° | — | — |
| 2015 | 88° | 66° | 77° | — | — |
| 2014 | 93° | 60° | 77° | — | — |
| 2013 | 95° | 62° | 79° | — | — |
| 2012 | 92° | 63° | 77° | — | — |
| 2011 | 87° | 59° | 73° | — | — |
| 2010 | 87° | 51° | 69° | — | — |
| 2009 | 98° | 65° | 81° | — | — |
| 2008 | 90° | 64° | 77° | — | — |
| 2007 | 103° | 71° | 87° | — | — |
| 2006 | 93° | 61° | 77° | — | — |
| 2005 | 85° | 59° | 72° | — | — |
| 2004 | 95° | 58° | 76° | — | — |
| 2003 | 87° | 61° | 74° | — | — |
| 2002 | 89° | 58° | 73° | — | — |
| 2001 | 84° | 63° | 73° | — | — |
| 2000 | 76° | 65° | 70° | — | — |
| 1999 | 86° | 60° | 73° | — | — |
| 1998 | 102° | 71° | 87° | — | — |
| 1997 | 98° | 63° | 80° | — | — |
| 1996 | 100° | 63° | 81° | — | — |
| 1995warmest | 101° | 81° | 91° | — | — |
| 1994 | 83° | 67° | 75° | — | — |
| 1993 | 84° | 58° | 71° | — | — |
| 1992 | 78° | 53° | 66° | — | — |
| 1991 | 81° | 56° | 68° | — | — |
| 1990 | 86° | 58° | 72° | — | — |
| 1989 | 81° | 51° | 66° | — | — |
| 1988 | 82° | 61° | 71° | — | — |
| 1987 | 88° | 60° | 74° | — | — |
| 1986 | 86° | 63° | 74° | — | — |
| 1985 | 94° | 64° | 79° | — | — |
| 1984 | 90° | 66° | 78° | — | — |
| 1983 | 92° | 62° | 77° | — | — |
| 1982 | 89° | 59° | 74° | — | — |
| 1981 | 79° | 59° | 69° | — | — |
| 1980 | 77° | 63° | 70° | — | — |
| 1979coldest | 83° | 43° | 63° | — | — |
| 1978 | 87° | 64° | 76° | — | — |
| 1977 | 81° | 65° | 73° | — | — |
| 1976 | 100° | 59° | 80° | — | — |
| 1975 | 84° | 53° | 69° | — | — |
| 1974 | 82° | 53° | 68° | — | — |
| 1973 | 78° | 59° | 69° | — | — |
| 1972 | 85° | 61° | 73° | — | — |
| 1971 | 84° | 52° | 68° | — | — |
55 years of data from IRVINE RCH