Weather on December 16
Mission Viejo, CA
55 Years of Data
Avg High
69°F
Avg Low
49°F
Warmest
1998
75°F avg
Coldest
1987
47°F avg
About This Date
December 16th in Mission Viejo, CA typically brings mild winter weather, with average highs around 69°F and lows near 49°F. Over 55 years of records, the warmest December 16th was in 1998 (75°F average), while the coldest was 1987 (47°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 7% of December 16th dates historically, with the wettest December 16th recording 2.08" of rain. The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.3°F cooler on this date compared to 20-30 years ago.
Planning for December 16th in Mission Viejo, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 48° | 62° | — | — |
| 2024 | 72° | 50° | 61° | — | — |
| 2023 | 81° | 62° | 71° | — | — |
| 2022 | 70° | 49° | 59° | — | — |
| 2021 | 60° | 41° | 51° | — | — |
| 2020 | 73° | 53° | 63° | — | — |
| 2019 | 67° | 48° | 57° | — | — |
| 2018 | 72° | 52° | 62° | — | — |
| 2017 | 66° | 53° | 60° | — | — |
| 2016 | 60° | 48° | 54° | — | — |
| 2015 | 62° | 44° | 53° | — | — |
| 2014 | 59° | 51° | 55° | — | — |
| 2013 | 83° | 64° | 73° | — | — |
| 2012 | 56° | 48° | 52° | — | — |
| 2011 | 66° | 47° | 56° | — | — |
| 2010 | 62° | 47° | 54° | — | — |
| 2009 | 73° | 51° | 62° | — | — |
| 2008 | 58° | 44° | 51° | — | — |
| 2007 | 70° | 47° | 58° | — | — |
| 2006 | 56° | 42° | 49° | — | — |
| 2005 | 62° | 44° | 53° | — | — |
| 2004 | 74° | 63° | 68° | — | — |
| 2003 | 70° | 53° | 61° | — | — |
| 2002 | 63° | 50° | 56° | — | — |
| 2001 | 66° | 44° | 55° | — | — |
| 2000 | 83° | 48° | 65° | — | — |
| 1999 | 80° | 60° | 70° | — | — |
| 1998warmest | 82° | 68° | 75° | — | — |
| 1997 | 72° | 47° | 59° | — | — |
| 1996 | 73° | 48° | 61° | — | — |
| 1995 | 63° | 47° | 55° | — | — |
| 1994 | 68° | 44° | 56° | — | — |
| 1993 | 65° | 44° | 54° | — | — |
| 1992 | 66° | 46° | 56° | — | — |
| 1991 | 76° | 55° | 65° | — | — |
| 1990 | 59° | 43° | 51° | — | — |
| 1989 | 65° | 48° | 56° | — | — |
| 1988 | 54° | 47° | 50° | 1.8" | — |
| 1987coldest | 53° | 41° | 47° | 2.08" | — |
| 1986 | 66° | 46° | 56° | — | — |
| 1985 | 78° | 52° | 65° | — | — |
| 1984 | 58° | 41° | 49° | 1.73" | — |
| 1983 | 61° | 47° | 54° | — | — |
| 1982 | 73° | 46° | 60° | — | — |
| 1981 | 71° | 47° | 59° | — | — |
| 1980 | 85° | 54° | 69° | — | — |
| 1979 | 75° | 46° | 61° | — | — |
| 1978 | 65° | 44° | 54° | 0.53" | — |
| 1977 | 69° | 50° | 60° | — | — |
| 1976 | 84° | 55° | 70° | — | — |
| 1975 | 67° | 41° | 54° | — | — |
| 1974 | 81° | 53° | 67° | — | — |
| 1973 | 72° | 46° | 59° | — | — |
| 1972 | 74° | 51° | 62° | — | — |
| 1971 | 66° | 41° | 54° | — | — |
55 years of data from EL TORO MCAS