Weather on May 15
Mission Viejo, CA
55 Years of Data
Avg High
73°F
Avg Low
55°F
Warmest
2014
87°F avg
Coldest
1974
55°F avg
About This Date
May 15th in Mission Viejo, CA typically brings pleasant spring weather, with average highs around 73°F and lows near 55°F. Over 55 years of records, the warmest May 15th was in 2014 (87°F average), while the coldest was 1974 (55°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 7% of May 15th dates historically, with the wettest May 15th recording 2.29" of rain. The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
Planning for May 15th in Mission Viejo, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 50° | 62° | — | — |
| 2024 | 61° | 55° | 58° | — | — |
| 2023 | 70° | 56° | 63° | — | — |
| 2022 | 83° | 55° | 69° | — | — |
| 2021 | 66° | 55° | 61° | — | — |
| 2020 | 76° | 54° | 65° | — | — |
| 2019 | 69° | 56° | 62° | — | — |
| 2018 | 72° | 51° | 61° | — | — |
| 2017 | 61° | 51° | 56° | — | — |
| 2016 | 69° | 57° | 63° | — | — |
| 2015 | 66° | 51° | 59° | — | — |
| 2014warmest | 101° | 74° | 87° | — | — |
| 2013 | 72° | 55° | 63° | — | — |
| 2012 | 76° | 49° | 62° | — | — |
| 2011 | 64° | 46° | 55° | — | — |
| 2010 | 73° | 52° | 62° | — | — |
| 2009 | 77° | 53° | 65° | — | — |
| 2008 | 87° | 57° | 72° | — | — |
| 2007 | 70° | 53° | 61° | — | — |
| 2006 | 61° | 56° | 58° | — | — |
| 2005 | 89° | 52° | 70° | — | — |
| 2004 | 84° | 55° | 70° | — | — |
| 2003 | 72° | 47° | 59° | — | — |
| 2002 | 71° | 53° | 62° | — | — |
| 2001 | 74° | 55° | 64° | — | — |
| 2000 | 74° | 49° | 61° | — | — |
| 1999 | 64° | 51° | 58° | — | — |
| 1998 | 72° | 50° | 61° | — | — |
| 1997 | 82° | 64° | 73° | — | — |
| 1996 | 77° | 62° | 70° | — | — |
| 1995 | 69° | 52° | 60° | 0.05" | — |
| 1994 | 65° | 57° | 61° | — | — |
| 1993 | 87° | 61° | 74° | 0.03" | — |
| 1992 | 76° | 59° | 67° | — | — |
| 1991 | 79° | 54° | 66° | — | — |
| 1990 | 71° | 55° | 63° | — | — |
| 1989 | 61° | 56° | 58° | 2.29" | — |
| 1988 | 72° | 54° | 63° | — | — |
| 1987 | 66° | 55° | 61° | — | — |
| 1986 | 70° | 59° | 64° | — | — |
| 1985 | 78° | 56° | 67° | — | — |
| 1984 | 69° | 52° | 60° | — | — |
| 1983 | 75° | 55° | 65° | — | — |
| 1982 | 73° | 55° | 64° | — | — |
| 1981 | 68° | 56° | 62° | 0.03" | — |
| 1980 | 65° | 55° | 60° | — | — |
| 1979 | 74° | 57° | 65° | — | — |
| 1978 | 74° | 57° | 65° | — | — |
| 1977 | 65° | 57° | 61° | — | — |
| 1976 | 78° | 56° | 67° | — | — |
| 1975 | 68° | 55° | 62° | — | — |
| 1974coldest | 61° | 49° | 55° | — | — |
| 1973 | 74° | 50° | 62° | — | — |
| 1972 | 75° | 53° | 64° | — | — |
| 1971 | 75° | 56° | 65° | — | — |
55 years of data from EL TORO MCAS