Weather on May 12
San Marcos, CA
55 Years of Data
Avg High
77°F
Avg Low
54°F
Warmest
2013
78°F avg
Coldest
1998
56°F avg
About This Date
May 12th in San Marcos, CA typically brings pleasant spring weather, with average highs around 77°F and lows near 54°F. Over 55 years of records, the warmest May 12th was in 2013 (78°F average), while the coldest was 1998 (56°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 7% of May 12th dates historically, with the wettest May 12th recording 1.47" of rain. 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 12th in San Marcos, CA? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 59° | 69° | — | — |
| 2024 | 82° | 57° | 70° | — | — |
| 2023 | 77° | 58° | 67° | — | — |
| 2022 | 82° | 47° | 64° | — | — |
| 2021 | 79° | 57° | 68° | — | — |
| 2020 | 75° | 56° | 65° | 0.05" | — |
| 2019 | 77° | 58° | 67° | — | — |
| 2018 | 65° | 54° | 59° | — | — |
| 2017 | 77° | 57° | 67° | — | — |
| 2016 | 80° | 60° | 70° | — | — |
| 2015 | 74° | 58° | 66° | — | — |
| 2014 | 92° | 54° | 73° | — | — |
| 2013warmest | 96° | 59° | 78° | — | — |
| 2012 | 75° | 55° | 65° | — | — |
| 2011 | 78° | 55° | 67° | — | — |
| 2010 | 66° | 48° | 57° | — | — |
| 2009 | 65° | 59° | 62° | — | — |
| 2008 | 60° | 54° | 57° | — | — |
| 2007 | 63° | 56° | 59° | — | — |
| 2006 | 65° | 59° | 62° | — | — |
| 2005 | 84° | 50° | 67° | — | — |
| 2004 | 75° | 54° | 64° | — | — |
| 2003 | 84° | 48° | 66° | — | — |
| 2002 | 93° | 50° | 72° | — | — |
| 2001 | 79° | 59° | 69° | — | — |
| 2000 | 83° | 47° | 65° | — | — |
| 1999 | 81° | 51° | 66° | — | — |
| 1998coldest | 61° | 52° | 56° | 1.47" | — |
| 1997 | 85° | 62° | 73° | — | — |
| 1996 | 91° | 51° | 71° | — | — |
| 1995 | 71° | 56° | 63° | — | — |
| 1994 | 69° | 57° | 63° | — | — |
| 1993 | 76° | 59° | 67° | — | — |
| 1992 | 81° | 61° | 71° | — | — |
| 1991 | 72° | 47° | 59° | — | — |
| 1990 | 74° | 57° | 65° | — | — |
| 1989 | 67° | 53° | 60° | — | — |
| 1988 | 91° | 58° | 74° | — | — |
| 1987 | 87° | 60° | 74° | — | — |
| 1986 | 73° | 55° | 64° | — | — |
| 1985 | 68° | 54° | 61° | — | — |
| 1984 | 80° | 54° | 67° | — | — |
| 1983 | 77° | 47° | 62° | — | — |
| 1982 | 73° | 44° | 59° | 0.1" | — |
| 1981 | 79° | 56° | 67° | — | — |
| 1980 | 68° | 47° | 57° | — | — |
| 1979 | 95° | 50° | 73° | — | — |
| 1978 | 90° | 50° | 70° | — | — |
| 1977 | 62° | 52° | 57° | 0.38" | — |
| 1976 | 88° | 54° | 71° | — | — |
| 1975 | 84° | 50° | 67° | — | — |
| 1974 | 72° | 55° | 63° | — | — |
| 1973 | 73° | 56° | 64° | — | — |
| 1972 | 85° | 51° | 68° | — | — |
| 1971 | 72° | 55° | 63° | — | — |
55 years of data from ESCONDIDO #2