Weather on October 19
San Marcos, CA
55 Years of Data
Avg High
78°F
Avg Low
54°F
Warmest
2022
78°F avg
Coldest
1971
55°F avg
About This Date
October 19th in San Marcos, CA typically brings pleasant fall weather, with average highs around 78°F and lows near 54°F. Over 55 years of records, the warmest October 19th was in 2022 (78°F average), while the coldest was 1971 (55°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 9% of October 19th dates historically, with the wettest October 19th recording 5.18" of rain. The last decade has been 5.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.3°F warmer on this date compared to 20-30 years ago.
Planning for October 19th in San Marcos, CA? Great weather for outdoor activities.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 89° | 52° | 70° | — | — |
| 2024 | 81° | 49° | 65° | — | — |
| 2023 | 92° | 59° | 75° | — | — |
| 2022warmest | 94° | 63° | 78° | — | — |
| 2021 | 72° | 46° | 59° | — | — |
| 2020 | 86° | 62° | 74° | — | — |
| 2019 | 84° | 55° | 70° | — | — |
| 2018 | 85° | 54° | 69° | — | — |
| 2017 | 77° | 61° | 69° | — | — |
| 2016 | 90° | 55° | 72° | — | — |
| 2015 | 74° | 62° | 68° | — | — |
| 2014 | 79° | 57° | 68° | — | — |
| 2013 | 88° | 51° | 69° | — | — |
| 2012 | 79° | 58° | 68° | — | — |
| 2011 | 73° | 58° | 65° | — | — |
| 2010 | 65° | 58° | 61° | 5.18" | — |
| 2009 | 69° | 63° | 66° | — | — |
| 2008 | 67° | 57° | 62° | — | — |
| 2007 | 89° | 50° | 70° | — | — |
| 2006 | 81° | 55° | 68° | — | — |
| 2005 | 68° | 54° | 61° | — | — |
| 2004 | 70° | 60° | 65° | 1.7" | — |
| 2003 | 75° | 58° | 66° | 0.03" | — |
| 2002 | 71° | 54° | 62° | — | — |
| 2001 | 80° | 50° | 65° | — | — |
| 2000 | 76° | 60° | 68° | — | — |
| 1999 | 84° | 49° | 66° | — | — |
| 1998 | 83° | 48° | 65° | — | — |
| 1997 | 79° | 52° | 65° | — | — |
| 1996 | 72° | 59° | 65° | — | — |
| 1995 | 75° | 55° | 65° | — | — |
| 1994 | 76° | 47° | 61° | — | — |
| 1993 | 79° | 50° | 64° | — | — |
| 1992 | 77° | 59° | 68° | — | — |
| 1991 | 93° | 56° | 74° | — | — |
| 1990 | 76° | 61° | 68° | 0.23" | — |
| 1989 | 93° | 52° | 72° | — | — |
| 1988 | 68° | 63° | 65° | — | — |
| 1987 | 74° | 62° | 68° | — | — |
| 1986 | 74° | 49° | 61° | — | — |
| 1985 | 78° | 51° | 65° | — | — |
| 1984 | 74° | 44° | 59° | — | — |
| 1983 | 80° | 53° | 67° | — | — |
| 1982 | 78° | 52° | 65° | — | — |
| 1981 | 90° | 50° | 70° | — | — |
| 1980 | 85° | 45° | 65° | — | — |
| 1979 | 75° | 61° | 68° | — | — |
| 1978 | 75° | 51° | 63° | — | — |
| 1977 | 71° | 59° | 65° | — | — |
| 1976 | 76° | 57° | 66° | — | — |
| 1975 | 69° | 56° | 62° | — | — |
| 1974 | 78° | 51° | 65° | — | — |
| 1973 | 93° | 53° | 73° | — | — |
| 1972 | 69° | 50° | 60° | 0.36" | — |
| 1971coldest | 68° | 41° | 55° | — | — |
55 years of data from ESCONDIDO #2