Weather on December 19
Mission Viejo, CA
55 Years of Data
Avg High
67°F
Avg Low
48°F
Warmest
2004
71°F avg
Coldest
1988
47°F avg
About This Date
December 19th in Mission Viejo, CA typically brings mild winter weather, with average highs around 67°F and lows near 48°F. Over 55 years of records, the warmest December 19th was in 2004 (71°F average), while the coldest was 1988 (47°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 15% of December 19th dates historically, with the wettest December 19th recording 2.34" of rain. The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
Planning for December 19th in Mission Viejo, CA? Great weather for outdoor activities.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 49° | 62° | — | — |
| 2024 | 81° | 57° | 69° | — | — |
| 2023 | 69° | 55° | 62° | — | — |
| 2022 | 67° | 45° | 56° | — | — |
| 2021 | 67° | 47° | 57° | — | — |
| 2020 | 72° | 56° | 64° | — | — |
| 2019 | 63° | 45° | 54° | — | — |
| 2018 | 75° | 52° | 63° | — | — |
| 2017 | 69° | 51° | 60° | — | — |
| 2016 | 71° | 55° | 63° | — | — |
| 2015 | 64° | 49° | 56° | — | — |
| 2014 | 65° | 49° | 57° | — | — |
| 2013 | 53° | 43° | 48° | — | — |
| 2012 | 60° | 36° | 48° | — | — |
| 2011 | 58° | 49° | 53° | — | — |
| 2010 | 58° | 53° | 55° | — | — |
| 2009 | 79° | 62° | 70° | — | — |
| 2008 | 58° | 39° | 48° | — | — |
| 2007 | 58° | 50° | 54° | — | — |
| 2006 | 59° | 41° | 50° | — | — |
| 2005 | 80° | 50° | 65° | — | — |
| 2004warmest | 81° | 61° | 71° | — | — |
| 2003 | 76° | 54° | 65° | — | — |
| 2002 | 63° | 42° | 52° | — | — |
| 2001 | 74° | 48° | 61° | — | — |
| 2000 | 80° | 55° | 68° | — | — |
| 1999 | 83° | 55° | 69° | — | — |
| 1998 | 62° | 52° | 57° | 0.94" | — |
| 1997 | 64° | 57° | 61° | — | — |
| 1996 | 71° | 46° | 59° | — | — |
| 1995 | 62° | 47° | 54° | 0.13" | — |
| 1994 | 67° | 43° | 55° | — | — |
| 1993 | 66° | 50° | 58° | 0.25" | — |
| 1992 | 60° | 42° | 51° | — | — |
| 1991 | 65° | 53° | 59° | — | — |
| 1990 | 57° | 48° | 53° | 0.25" | — |
| 1989 | 64° | 49° | 56° | — | — |
| 1988coldest | 54° | 41° | 47° | — | — |
| 1987 | 55° | 43° | 49° | 0.36" | — |
| 1986 | 62° | 42° | 52° | 0.08" | — |
| 1985 | 81° | 56° | 68° | — | — |
| 1984 | 60° | 48° | 54° | 2.34" | — |
| 1983 | 60° | 45° | 52° | — | — |
| 1982 | 74° | 45° | 59° | — | — |
| 1981 | 68° | 50° | 59° | — | — |
| 1980 | 62° | 49° | 55° | — | — |
| 1979 | 68° | 47° | 57° | — | — |
| 1978 | 55° | 42° | 49° | 0.15" | — |
| 1977 | 68° | 45° | 56° | — | — |
| 1976 | 68° | 47° | 57° | — | — |
| 1975 | 61° | 35° | 48° | — | — |
| 1974 | 65° | 46° | 55° | — | — |
| 1973 | 77° | 46° | 62° | — | — |
| 1972 | 67° | 50° | 58° | — | — |
| 1971 | 64° | 45° | 54° | — | — |
55 years of data from EL TORO MCAS