Weather on March 9
San Marcos, CA
55 Years of Data
Avg High
71°F
Avg Low
47°F
Warmest
2004
69°F avg
Coldest
1974
49°F avg
About This Date
March 9th in San Marcos, CA typically brings pleasant spring weather, with average highs around 71°F and lows near 47°F. Over 56 years of records, the warmest March 9th was in 2004 (69°F average), while the coldest was 1974 (49°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 13% of March 9th dates historically, with the wettest March 9th recording 0.89" 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 March 9th in San Marcos, CA? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 65° | 54° | 59° | — | — |
| 2025 | 79° | 42° | 60° | — | — |
| 2024 | 76° | 47° | 61° | — | — |
| 2023 | 73° | 45° | 59° | — | — |
| 2022 | 72° | 41° | 56° | — | — |
| 2021 | 64° | 49° | 56° | — | — |
| 2020 | 76° | 47° | 61° | — | — |
| 2019 | 60° | 44° | 52° | — | — |
| 2018 | 75° | 48° | 62° | — | — |
| 2017 | 87° | 50° | 69° | — | — |
| 2016 | 75° | 45° | 60° | — | — |
| 2015 | 73° | 51° | 62° | — | — |
| 2014 | 83° | 50° | 66° | — | — |
| 2013 | 57° | 47° | 52° | 0.84" | — |
| 2012 | 83° | 45° | 64° | — | — |
| 2011 | 84° | 45° | 64° | — | — |
| 2010 | 57° | 47° | 52° | 0.05" | — |
| 2009 | 59° | 52° | 55° | — | — |
| 2008 | 68° | 47° | 57° | 0.03" | — |
| 2007 | 61° | 53° | 57° | — | — |
| 2006 | 60° | 48° | 54° | — | — |
| 2005 | 76° | 53° | 64° | — | — |
| 2004warmest | 87° | 52° | 69° | — | — |
| 2003 | 74° | 43° | 58° | — | — |
| 2002 | 76° | 39° | 57° | — | — |
| 2001 | 63° | 52° | 57° | — | — |
| 2000 | 63° | 37° | 50° | — | — |
| 1999 | 60° | 46° | 53° | — | — |
| 1998 | 73° | 43° | 58° | — | — |
| 1997 | 83° | 42° | 62° | — | — |
| 1996 | 86° | 43° | 64° | — | — |
| 1995 | 76° | 47° | 61° | — | — |
| 1994 | 69° | 53° | 61° | — | — |
| 1993 | 79° | 47° | 63° | — | — |
| 1992 | 64° | 48° | 56° | — | — |
| 1991 | 72° | 40° | 56° | — | — |
| 1990 | 64° | 52° | 58° | — | — |
| 1989 | 78° | 48° | 63° | — | — |
| 1988 | 71° | 44° | 58° | — | — |
| 1987 | 65° | 50° | 57° | — | — |
| 1986 | 64° | 49° | 56° | 0.89" | — |
| 1985 | 72° | 44° | 58° | — | — |
| 1984 | 69° | 44° | 57° | — | — |
| 1983 | 79° | 48° | 63° | — | — |
| 1982 | 79° | 42° | 60° | — | — |
| 1981 | 76° | 42° | 59° | — | — |
| 1980 | 77° | 41° | 59° | — | — |
| 1979 | 70° | 51° | 60° | — | — |
| 1978 | 65° | 52° | 58° | 0.74" | — |
| 1977 | 66° | 48° | 57° | — | — |
| 1976 | 62° | 49° | 55° | — | — |
| 1975 | 58° | 51° | 54° | 0.13" | — |
| 1974coldest | 61° | 38° | 49° | 0.08" | — |
| 1973 | 63° | 40° | 51° | — | — |
| 1972 | 68° | 49° | 58° | — | — |
| 1971 | 66° | 47° | 56° | — | — |
56 years of data from ESCONDIDO #2