Weather on December 5
San Marcos, CA
55 Years of Data
Avg High
70°F
Avg Low
44°F
Warmest
2007
73°F avg
Coldest
1972
46°F avg
About This Date
December 5th in San Marcos, CA typically brings pleasant winter weather, with average highs around 70°F and lows near 44°F — a 26°F daily swing. Over 55 years of records, the warmest December 5th was in 2007 (73°F average), while the coldest was 1972 (46°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 18% of December 5th dates historically, with the wettest December 5th recording 1.57" of rain. The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for December 5th in San Marcos, CA? Great weather for outdoor activities.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 43° | 59° | — | — |
| 2024 | 70° | 44° | 57° | — | — |
| 2023 | 85° | 48° | 66° | — | — |
| 2022 | 68° | 57° | 63° | — | — |
| 2021 | 72° | 49° | 60° | — | — |
| 2020 | 78° | 40° | 59° | — | — |
| 2019 | 70° | 51° | 60° | 0.23" | — |
| 2018 | 60° | 41° | 51° | 1.4" | — |
| 2017 | 71° | 43° | 57° | — | — |
| 2016 | 68° | 42° | 55° | — | — |
| 2015 | 78° | 42° | 60° | — | — |
| 2014 | 69° | 53° | 61° | — | — |
| 2013 | 59° | 46° | 53° | — | — |
| 2012 | 72° | 53° | 62° | 0.03" | — |
| 2011 | 64° | 36° | 50° | — | — |
| 2010 | 71° | 44° | 58° | — | — |
| 2009 | 59° | 49° | 54° | — | — |
| 2008 | 67° | 50° | 58° | — | — |
| 2007warmest | 96° | 50° | 73° | 0.03" | — |
| 2006 | 66° | 45° | 55° | — | — |
| 2005 | 72° | 36° | 54° | — | — |
| 2004 | 53° | 42° | 48° | 1.14" | — |
| 2003 | 77° | 43° | 60° | — | — |
| 2002 | 74° | 41° | 57° | — | — |
| 2001 | 64° | 36° | 50° | — | — |
| 2000 | 82° | 50° | 66° | — | — |
| 1999 | 71° | 35° | 53° | — | — |
| 1998 | 57° | 46° | 52° | 0.25" | — |
| 1997 | 76° | 48° | 62° | — | — |
| 1996 | 65° | 41° | 53° | — | — |
| 1995 | 81° | 48° | 64° | — | — |
| 1994 | 63° | 51° | 57° | — | — |
| 1993 | 73° | 39° | 56° | — | — |
| 1992 | 61° | 44° | 52° | 0.69" | — |
| 1991 | 70° | 46° | 58° | — | — |
| 1990 | 80° | 41° | 61° | — | — |
| 1989 | 83° | 42° | 62° | — | — |
| 1988 | 82° | 42° | 62° | — | — |
| 1987 | 66° | 50° | 58° | 1.57" | — |
| 1986 | 70° | 54° | 62° | — | — |
| 1985 | 75° | 52° | 63° | — | — |
| 1984 | 62° | 47° | 54° | 0.05" | — |
| 1983 | 63° | 35° | 49° | — | — |
| 1982 | 64° | 39° | 52° | — | — |
| 1981 | 72° | 47° | 59° | — | — |
| 1980 | 64° | 53° | 59° | — | — |
| 1979 | 87° | 47° | 67° | — | — |
| 1978 | 60° | 36° | 48° | — | — |
| 1977 | 76° | 43° | 59° | — | — |
| 1976 | 72° | 44° | 58° | — | — |
| 1975 | 63° | 48° | 55° | — | — |
| 1974 | 65° | 43° | 54° | — | — |
| 1973 | 69° | 34° | 51° | — | — |
| 1972coldest | 56° | 36° | 46° | 0.05" | — |
| 1971 | 67° | 32° | 49° | — | — |
55 years of data from ESCONDIDO #2