Weather on August 17
Irvine, CA
55 Years of Data
Avg High
87°F
Avg Low
62°F
Warmest
2012
92°F avg
Coldest
1979
64°F avg
About This Date
August 17th in Irvine, CA typically brings warm summer weather, with average highs around 87°F and lows near 62°F — a 25°F daily swing. Over 55 years of records, the warmest August 17th was in 2012 (92°F average), while the coldest was 1979 (64°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 4% of August 17th dates historically, with the wettest August 17th recording 2.9" of rain. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for August 17th in Irvine, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 58° | 70° | — | — |
| 2024 | 92° | 66° | 79° | — | — |
| 2023 | 89° | 60° | 75° | — | — |
| 2022 | 91° | 65° | 78° | — | — |
| 2021 | 88° | 68° | 78° | — | — |
| 2020 | 94° | 69° | 81° | — | — |
| 2019 | 87° | 63° | 75° | — | — |
| 2018 | 91° | 67° | 79° | — | — |
| 2017 | 86° | 57° | 72° | — | — |
| 2016 | 95° | 62° | 79° | — | — |
| 2015 | 96° | 66° | 81° | — | — |
| 2014 | 95° | 68° | 82° | — | — |
| 2013 | 96° | 56° | 76° | — | — |
| 2012warmest | 101° | 83° | 92° | — | — |
| 2011 | 91° | 55° | 73° | — | — |
| 2010 | 98° | 59° | 79° | — | — |
| 2009 | 82° | 60° | 71° | — | — |
| 2008 | 90° | 62° | 76° | — | — |
| 2007 | 95° | 65° | 80° | — | — |
| 2006 | 87° | 60° | 74° | — | — |
| 2005 | 85° | 56° | 70° | — | — |
| 2004 | 87° | 61° | 74° | — | — |
| 2003 | 97° | 64° | 80° | — | — |
| 2002 | 82° | 57° | 70° | — | — |
| 2001 | 86° | 61° | 73° | — | — |
| 2000 | 90° | 66° | 78° | — | — |
| 1999 | 92° | 59° | 75° | — | — |
| 1998 | 86° | 69° | 78° | — | — |
| 1997 | 90° | 64° | 77° | — | — |
| 1996 | 88° | 70° | 79° | — | — |
| 1995 | 85° | 55° | 70° | — | — |
| 1994 | 93° | 66° | 80° | — | — |
| 1993 | 83° | 56° | 69° | — | — |
| 1992 | 100° | 65° | 82° | — | — |
| 1991 | 79° | 65° | 72° | — | — |
| 1990 | 81° | 57° | 69° | — | — |
| 1989 | 80° | 60° | 70° | — | — |
| 1988 | 81° | 58° | 69° | — | — |
| 1987 | 79° | 62° | 70° | — | — |
| 1986 | 83° | 59° | 71° | — | — |
| 1985 | 78° | 64° | 71° | — | — |
| 1984 | 90° | 69° | 79° | — | — |
| 1983 | 86° | 72° | 79° | 1.65" | — |
| 1982 | 83° | 54° | 68° | — | — |
| 1981 | 82° | 62° | 72° | — | — |
| 1980 | 81° | — | — | — | — |
| 1979coldest | 75° | 53° | 64° | — | — |
| 1978 | 81° | 55° | 68° | — | — |
| 1977 | 90° | 69° | 79° | 2.9" | — |
| 1976 | 78° | 53° | 66° | — | — |
| 1975 | 80° | 52° | 66° | — | — |
| 1974 | 81° | 54° | 67° | — | — |
| 1973 | 81° | 62° | 71° | — | — |
| 1972 | 81° | 56° | 68° | — | — |
| 1971 | 83° | 63° | 73° | — | — |
55 years of data from IRVINE RCH