Weather on March 15
Fullerton, CA
55 Years of Data
Avg High
72°F
Avg Low
49°F
Warmest
2015
76°F avg
Coldest
1977
50°F avg
About This Date
March 15th in Fullerton, CA typically brings pleasant spring weather, with average highs around 72°F and lows near 49°F. Over 56 years of records, the warmest March 15th was in 2015 (76°F average), while the coldest was 1977 (50°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 14% of March 15th dates historically, with the wettest March 15th recording 4.37" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for March 15th in Fullerton, CA? Great weather for outdoor activities.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 78° | 58° | 68° | — | — |
| 2025 | 66° | 44° | 55° | — | — |
| 2024 | 66° | 52° | 59° | — | — |
| 2023 | 61° | 56° | 58° | 3.78" | — |
| 2022 | 79° | 53° | 66° | — | — |
| 2021 | 64° | 52° | 58° | 0.38" | — |
| 2020 | 65° | 55° | 60° | 0.2" | — |
| 2019 | 76° | 52° | 64° | — | — |
| 2018 | 65° | 54° | 59° | 0.25" | — |
| 2017 | 89° | 58° | 73° | — | — |
| 2016 | 82° | 52° | 67° | — | — |
| 2015warmest | 93° | 59° | 76° | — | — |
| 2014 | 92° | 51° | 71° | — | — |
| 2013 | 81° | 54° | 67° | — | — |
| 2012 | 68° | 53° | 61° | — | — |
| 2011 | 83° | 52° | 67° | — | — |
| 2010 | 85° | 47° | 66° | — | — |
| 2009 | 64° | 50° | 57° | — | — |
| 2008 | 65° | 49° | 57° | — | — |
| 2007 | 78° | 53° | 66° | — | — |
| 2006 | 66° | 44° | 55° | — | — |
| 2005 | 79° | 52° | 65° | — | — |
| 2004 | 75° | 56° | 65° | — | — |
| 2003 | 66° | 57° | 62° | 4.37" | — |
| 2002 | 68° | 40° | 54° | — | — |
| 2001 | 66° | 53° | 60° | — | — |
| 2000 | 76° | 52° | 64° | — | — |
| 1999 | 62° | 46° | 54° | 0.94" | — |
| 1998 | 72° | 50° | 61° | — | — |
| 1997 | 74° | 53° | 63° | — | — |
| 1996 | 69° | 47° | 58° | — | — |
| 1995 | 78° | 53° | 66° | — | — |
| 1994 | 83° | 55° | 69° | — | — |
| 1993 | 72° | 58° | 65° | — | — |
| 1992 | 69° | 48° | 59° | — | — |
| 1991 | 58° | 42° | 50° | — | — |
| 1990 | 79° | 45° | 62° | — | — |
| 1989 | 69° | 49° | 59° | — | — |
| 1988 | 70° | 46° | 58° | — | — |
| 1987 | 64° | 46° | 55° | 0.41" | — |
| 1986 | 61° | 45° | 53° | — | — |
| 1985 | 65° | 51° | 58° | — | — |
| 1984 | 68° | 51° | 60° | — | — |
| 1983 | 70° | 46° | 58° | — | — |
| 1982 | 63° | 46° | 54° | 0.36" | — |
| 1981 | 77° | 43° | 60° | — | — |
| 1980 | 73° | 45° | 59° | — | — |
| 1979 | 65° | 43° | 54° | — | — |
| 1978 | 82° | 46° | 64° | — | — |
| 1977coldest | 67° | 34° | 50° | — | — |
| 1976 | 78° | 42° | 60° | — | — |
| 1975 | 64° | 38° | 51° | — | — |
| 1974 | 79° | 44° | 61° | — | — |
| 1973 | 74° | 38° | 56° | — | — |
| 1972 | 77° | 52° | 64° | — | — |
| 1971 | 73° | 39° | 56° | — | — |
56 years of data from ANAHEIM