Weather on May 17
Fullerton, CA
55 Years of Data
Avg High
77°F
Avg Low
56°F
Warmest
2008
81°F avg
Coldest
1977
56°F avg
About This Date
May 17th in Fullerton, CA typically brings pleasant spring weather, with average highs around 77°F and lows near 56°F. Over 55 years of records, the warmest May 17th was in 2008 (81°F average), while the coldest was 1977 (56°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 17th dates historically, with the wettest May 17th recording 3.91" of rain. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for May 17th in Fullerton, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 58° | 61° | — | — |
| 2024 | 71° | 60° | 66° | — | — |
| 2023 | 77° | 59° | 68° | — | — |
| 2022 | 77° | 61° | 69° | — | — |
| 2021 | 71° | 58° | 64° | — | — |
| 2020 | 80° | 63° | 71° | — | — |
| 2019 | 73° | 53° | 63° | — | — |
| 2018 | 74° | 56° | 65° | — | — |
| 2017 | 67° | 55° | 61° | — | — |
| 2016 | 75° | 62° | 69° | — | — |
| 2015 | 74° | 56° | 65° | — | — |
| 2014 | 94° | 63° | 78° | — | — |
| 2013 | 75° | 62° | 69° | — | — |
| 2012 | 76° | 60° | 68° | — | — |
| 2011 | 66° | 51° | 59° | 3.91" | — |
| 2010 | 68° | 57° | 63° | — | — |
| 2009 | 82° | 60° | 71° | — | — |
| 2008warmest | 99° | 64° | 81° | — | — |
| 2007 | 74° | 59° | 66° | — | — |
| 2006 | 79° | 62° | 70° | — | — |
| 2005 | 76° | 60° | 68° | — | — |
| 2004 | 77° | 63° | 70° | — | — |
| 2003 | 79° | 60° | 69° | — | — |
| 2002 | 75° | 59° | 67° | — | — |
| 2001 | 77° | 60° | 69° | — | — |
| 2000 | 84° | 52° | 68° | — | — |
| 1999 | 79° | 51° | 65° | — | — |
| 1998 | 76° | 49° | 62° | — | — |
| 1997 | 82° | 65° | 73° | — | — |
| 1996 | 77° | 59° | 68° | — | — |
| 1995 | 71° | 52° | 61° | — | — |
| 1994 | 67° | 52° | 59° | 0.05" | — |
| 1993 | 77° | 61° | 69° | — | — |
| 1992 | 78° | 60° | 69° | — | — |
| 1991 | 73° | 57° | 65° | — | — |
| 1990 | 77° | 58° | 67° | — | — |
| 1989 | 69° | 58° | 63° | — | — |
| 1988 | 71° | 59° | 65° | — | — |
| 1987 | 73° | 63° | 68° | — | — |
| 1986 | 86° | 55° | 71° | — | — |
| 1985 | 71° | 56° | 63° | — | — |
| 1984 | 76° | 55° | 65° | — | — |
| 1983 | 90° | 55° | 72° | — | — |
| 1982 | 88° | 50° | 69° | — | — |
| 1981 | 84° | 47° | 65° | — | — |
| 1980 | 80° | 50° | 65° | — | — |
| 1979 | 76° | 52° | 64° | — | — |
| 1978 | 92° | 54° | 73° | — | — |
| 1977coldest | 70° | 43° | 56° | — | — |
| 1976 | 81° | 54° | 67° | — | — |
| 1975 | 76° | 49° | 62° | — | — |
| 1974 | 71° | 49° | 60° | — | — |
| 1973 | 75° | 54° | 64° | — | — |
| 1972 | 73° | 56° | 64° | — | — |
| 1971 | 86° | 43° | 64° | — | — |
55 years of data from ANAHEIM