Weather on May 27
Fullerton, CA
55 Years of Data
About This Date
May 27th in Fullerton, CA typically brings pleasant spring weather, with average highs around 76°F and lows near 57°F. Over 54 years of records, the warmest May 27th was in 2014 (75°F average), while the coldest was 1980 (56°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 6% of May 27th dates historically. 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 May 27th in Fullerton, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 62° | 70° | — | — |
| 2024 | 73° | 57° | 65° | — | — |
| 2023 | 72° | 58° | 65° | — | — |
| 2022 | 79° | 62° | 70° | — | — |
| 2021 | 78° | 60° | 69° | — | — |
| 2020 | 84° | 61° | 72° | — | — |
| 2019 | 69° | 53° | 61° | 0.2" | — |
| 2018 | 76° | 59° | 67° | — | — |
| 2017 | 77° | 58° | 67° | — | — |
| 2016 | 76° | 59° | 67° | — | — |
| 2015 | 76° | 59° | 67° | — | — |
| 2014warmest | 85° | 65° | 75° | — | — |
| 2013 | 75° | 61° | 68° | — | — |
| 2012 | 77° | 52° | 64° | — | — |
| 2011 | 78° | 59° | 69° | — | — |
| 2010 | 73° | 59° | 66° | — | — |
| 2009 | 78° | 61° | 69° | — | — |
| 2008 | 75° | 52° | 63° | — | — |
| 2007 | 76° | 60° | 68° | — | — |
| 2006 | 74° | 61° | 67° | — | — |
| 2005 | 74° | 61° | 67° | — | — |
| 2004 | 73° | 56° | 64° | — | — |
| 2003 | 87° | 59° | 73° | — | — |
| 2002 | 74° | 57° | 65° | — | — |
| 2001 | 69° | 60° | 65° | — | — |
| 2000 | 90° | 58° | 74° | — | — |
| 1999 | 76° | 59° | 67° | — | — |
| 1998 | 69° | 50° | 60° | — | — |
| 1997 | 88° | 60° | 74° | — | — |
| 1996 | 72° | 58° | 65° | — | — |
| 1995 | 72° | 58° | 65° | — | — |
| 1994 | 77° | 55° | 66° | — | — |
| 1993 | 76° | 57° | 66° | — | — |
| 1992 | 76° | 61° | 68° | — | — |
| 1991 | 71° | 58° | 64° | — | — |
| 1990 | 72° | 52° | 62° | — | — |
| 1989 | 74° | 59° | 66° | — | — |
| 1988 | 72° | 54° | 63° | — | — |
| 1987 | 69° | 55° | 62° | — | — |
| 1986 | 76° | 60° | 68° | — | — |
| 1985 | 71° | 59° | 65° | — | — |
| 1983 | 81° | 62° | 71° | — | — |
| 1982 | 65° | 56° | 60° | — | — |
| 1981 | 79° | 50° | 64° | 0.18" | — |
| 1980coldest | 68° | 45° | 56° | — | — |
| 1979 | 71° | 56° | 63° | 0.08" | — |
| 1978 | 84° | 49° | 66° | — | — |
| 1977 | 75° | 51° | 63° | — | — |
| 1976 | 76° | 56° | 66° | — | — |
| 1975 | 71° | 56° | 63° | — | — |
| 1974 | 88° | 52° | 70° | — | — |
| 1973 | 93° | 49° | 71° | — | — |
| 1972 | 92° | 48° | 70° | — | — |
| 1971 | 66° | 50° | 58° | — | — |
Fullerton, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Fullerton, CA Monthly Precipitation
Average rainfall per month, in inches.
Fullerton, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Fullerton, CA
Fullerton, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.