Weather on October 23
San Marcos, CA
55 Years of Data
Avg High
79°F
Avg Low
56°F
Warmest
2017
79°F avg
Coldest
1996
58°F avg
About This Date
October 23rd in San Marcos, CA typically brings pleasant fall weather, with average highs around 79°F and lows near 56°F. Over 54 years of records, the warmest October 23rd was in 2017 (79°F average), while the coldest was 1996 (58°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 17% of October 23rd dates historically, with the wettest October 23rd recording 1.4" of rain. The last decade has been 5.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.2°F warmer on this date compared to 20-30 years ago.
Planning for October 23rd 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 | 77° | 57° | 67° | — | — |
| 2024 | 91° | 56° | 73° | — | — |
| 2023 | 73° | 62° | 68° | 0.05" | — |
| 2022 | 73° | 57° | 65° | 0.3" | — |
| 2021 | 72° | 56° | 64° | 0.03" | — |
| 2020 | 77° | 64° | 71° | — | — |
| 2019 | 96° | 57° | 77° | — | — |
| 2018 | 76° | 59° | 67° | — | — |
| 2017warmest | 101° | 58° | 79° | — | — |
| 2016 | 82° | 57° | 70° | — | — |
| 2015 | 86° | 61° | 73° | — | — |
| 2014 | 89° | 55° | 72° | — | — |
| 2013 | 74° | 57° | 65° | — | — |
| 2012 | 68° | 55° | 62° | — | — |
| 2011 | 84° | 55° | 70° | — | — |
| 2010 | 68° | 56° | 62° | — | — |
| 2009 | 78° | 55° | 67° | 0.03" | — |
| 2008 | 88° | 62° | 75° | — | — |
| 2007 | 86° | 67° | 76° | — | — |
| 2006 | 89° | 66° | 78° | — | — |
| 2005 | 66° | 60° | 63° | — | — |
| 2004 | 73° | 47° | 60° | — | — |
| 2003 | 81° | 58° | 69° | 0.03" | — |
| 2002 | 70° | 58° | 64° | — | — |
| 2001 | 74° | 54° | 64° | — | — |
| 2000 | 74° | 53° | 63° | 0.03" | — |
| 1999 | 87° | 52° | 69° | — | — |
| 1998 | 88° | 56° | 72° | — | — |
| 1997 | 73° | 61° | 67° | — | — |
| 1996coldest | 75° | 41° | 58° | — | — |
| 1995 | 81° | 47° | 64° | — | — |
| 1994 | 78° | 53° | 66° | — | — |
| 1993 | 86° | 50° | 68° | — | — |
| 1992 | 84° | 62° | 73° | 0.38" | — |
| 1991 | 73° | 62° | 68° | — | — |
| 1989 | 76° | 60° | 68° | — | — |
| 1988 | 77° | 57° | 67° | — | — |
| 1987 | 74° | 62° | 68° | 0.71" | — |
| 1986 | 75° | 57° | 66° | — | — |
| 1985 | 80° | 50° | 65° | — | — |
| 1984 | 80° | 50° | 65° | — | — |
| 1983 | 87° | 54° | 70° | — | — |
| 1982 | 94° | 60° | 77° | — | — |
| 1981 | 88° | 48° | 68° | — | — |
| 1980 | 90° | 47° | 68° | — | — |
| 1979 | 79° | 47° | 63° | — | — |
| 1978 | 84° | 51° | 68° | — | — |
| 1977 | 82° | 51° | 67° | — | — |
| 1976 | 72° | 56° | 64° | 1.4" | — |
| 1975 | 71° | 52° | 61° | — | — |
| 1974 | 68° | 59° | 64° | — | — |
| 1973 | 73° | 53° | 63° | — | — |
| 1972 | 75° | 54° | 64° | — | — |
| 1971 | 75° | 44° | 60° | — | — |
54 years of data from ESCONDIDO #2