Weather on August 12
Fullerton, CA
55 Years of Data
Avg High
87°F
Avg Low
65°F
Warmest
1994
87°F avg
Coldest
1979
69°F avg
About This Date
August 12th in Fullerton, CA typically brings warm summer weather, with average highs around 87°F and lows near 65°F. Over 55 years of records, the warmest August 12th was in 1994 (87°F average), while the coldest was 1979 (69°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 12th dates historically, with the wettest August 12th recording 0.91" of rain. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for August 12th in Fullerton, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 66° | 74° | — | — |
| 2024 | 89° | 69° | 79° | — | — |
| 2023 | 85° | 67° | 76° | — | — |
| 2022 | 96° | 68° | 82° | — | — |
| 2021 | 97° | 70° | 83° | — | — |
| 2020 | 91° | 61° | 76° | — | — |
| 2019 | 84° | 66° | 75° | — | — |
| 2018 | 90° | 71° | 80° | — | — |
| 2017 | 88° | 68° | 78° | — | — |
| 2016 | 87° | 66° | 77° | — | — |
| 2015 | 94° | 63° | 78° | — | — |
| 2014 | 87° | 68° | 78° | — | — |
| 2013 | 83° | 62° | 72° | — | — |
| 2012 | 99° | 73° | 86° | — | — |
| 2011 | 82° | 64° | 73° | — | — |
| 2010 | 81° | 57° | 69° | — | — |
| 2009 | 83° | 62° | 72° | — | — |
| 2008 | 84° | 65° | 74° | — | — |
| 2007 | 90° | 66° | 78° | — | — |
| 2006 | 87° | 68° | 78° | — | — |
| 2005 | 82° | 67° | 74° | — | — |
| 2004 | 87° | 67° | 77° | — | — |
| 2003 | 98° | 67° | 82° | — | — |
| 2002 | 85° | 63° | 74° | — | — |
| 2001 | 84° | 66° | 75° | — | — |
| 2000 | 97° | 63° | 80° | — | — |
| 1999 | 82° | 59° | 71° | — | — |
| 1998 | 93° | 70° | 81° | — | — |
| 1997 | 79° | 59° | 69° | — | — |
| 1996 | 92° | 67° | 79° | — | — |
| 1995 | 92° | 63° | 77° | — | — |
| 1994warmest | 102° | 71° | 87° | — | — |
| 1993 | 86° | 62° | 74° | — | — |
| 1992 | 92° | 67° | 79° | — | — |
| 1991 | 89° | 68° | 79° | — | — |
| 1990 | 90° | 68° | 79° | — | — |
| 1989 | 89° | 66° | 78° | — | — |
| 1988 | 79° | 64° | 71° | — | — |
| 1987 | 80° | 63° | 71° | — | — |
| 1986 | 83° | 64° | 73° | — | — |
| 1985 | 79° | 65° | 72° | — | — |
| 1984 | 87° | 67° | 77° | — | — |
| 1983 | 93° | 66° | 80° | — | — |
| 1982 | 81° | 59° | 70° | — | — |
| 1981 | 88° | 61° | 74° | — | — |
| 1980 | 91° | 65° | 78° | — | — |
| 1979coldest | 85° | 53° | 69° | — | — |
| 1978 | 85° | 64° | 74° | — | — |
| 1977 | 88° | 60° | 74° | — | — |
| 1976 | 88° | 53° | 70° | — | — |
| 1975 | 83° | 60° | 71° | — | — |
| 1974 | 79° | 63° | 71° | — | — |
| 1973 | 86° | 60° | 73° | — | — |
| 1972 | 82° | 66° | 74° | 0.91" | — |
| 1971 | 92° | 64° | 78° | — | — |
55 years of data from ANAHEIM