Weather on May 15
Vista, CA
55 Years of Data
Avg High
70°F
Avg Low
56°F
Warmest
2014
82°F avg
Coldest
1989
56°F avg
About This Date
May 15th in Vista, CA typically brings pleasant spring weather, with average highs around 70°F and lows near 56°F. Over 55 years of records, the warmest May 15th was in 2014 (82°F average), while the coldest was 1989 (56°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 11% of May 15th dates historically, with the wettest May 15th recording 1.09" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for May 15th in Vista, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 56° | 60° | — | — |
| 2024 | 60° | 57° | 59° | — | — |
| 2023 | 64° | 59° | 62° | — | — |
| 2022 | 71° | 58° | 64° | — | — |
| 2021 | 65° | 59° | 62° | — | — |
| 2020 | 71° | 60° | 66° | — | — |
| 2019 | 66° | 62° | 64° | — | — |
| 2018 | 66° | 59° | 63° | — | — |
| 2017 | 61° | 56° | 58° | — | — |
| 2016 | 68° | 59° | 64° | — | — |
| 2015 | 65° | 55° | 60° | 1.09" | — |
| 2014warmest | 97° | 67° | 82° | — | — |
| 2013 | 68° | 62° | 65° | — | — |
| 2012 | 68° | 60° | 64° | — | — |
| 2011 | 65° | 56° | 60° | 0.08" | — |
| 2010 | 64° | 57° | 61° | — | — |
| 2009 | 67° | 58° | 62° | — | — |
| 2008 | 71° | 57° | 64° | — | — |
| 2007 | 62° | 57° | 60° | — | — |
| 2006 | 68° | 60° | 64° | — | — |
| 2005 | 72° | 60° | 66° | — | — |
| 2004 | 78° | 57° | 68° | — | — |
| 2003 | 64° | 52° | 58° | — | — |
| 2002 | 64° | 57° | 61° | — | — |
| 2001 | 67° | 58° | 62° | — | — |
| 2000 | 67° | 53° | 60° | — | — |
| 1999 | 63° | 55° | 59° | — | — |
| 1998 | 66° | 50° | 58° | — | — |
| 1997 | 86° | 60° | 73° | — | — |
| 1996 | 80° | 62° | 71° | — | — |
| 1995 | 70° | 49° | 59° | 0.13" | — |
| 1994 | 68° | 57° | 63° | 0.13" | — |
| 1993 | 86° | 61° | 73° | — | — |
| 1992 | 75° | 61° | 68° | — | — |
| 1991 | 76° | 49° | 62° | — | — |
| 1990 | 69° | 57° | 63° | — | — |
| 1989coldest | 60° | 52° | 56° | 0.05" | — |
| 1988 | 72° | 55° | 63° | — | — |
| 1987 | 72° | 58° | 65° | — | — |
| 1986 | 70° | 57° | 63° | — | — |
| 1985 | 75° | 51° | 63° | — | — |
| 1984 | 73° | 53° | 63° | — | — |
| 1983 | 75° | 55° | 65° | — | — |
| 1982 | 73° | 55° | 64° | — | — |
| 1981 | 69° | 55° | 62° | 0.08" | — |
| 1980 | 67° | 54° | 60° | — | — |
| 1979 | 81° | 56° | 68° | — | — |
| 1978 | 75° | 53° | 64° | — | — |
| 1977 | 65° | 49° | 57° | — | — |
| 1976 | 73° | 52° | 62° | — | — |
| 1975 | 64° | 53° | 59° | — | — |
| 1974 | 67° | 52° | 59° | — | — |
| 1973 | 70° | 57° | 63° | — | — |
| 1972 | 82° | 55° | 69° | — | — |
| 1971 | 68° | 52° | 60° | — | — |
55 years of data from CARLSBAD MCCLELLAN PALOMAR AP