Weather on January 20
Mission Viejo, CA
55 Years of Data
Avg High
67°F
Avg Low
48°F
Warmest
2009
72°F avg
Coldest
1973
45°F avg
About This Date
January 20th in Mission Viejo, CA typically brings mild winter weather, with average highs around 67°F and lows near 48°F. Over 56 years of records, the warmest January 20th was in 2009 (72°F average), while the coldest was 1973 (45°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 7% of January 20th dates historically, with the wettest January 20th recording 3.91" 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 January 20th in Mission Viejo, CA? Great weather for outdoor activities.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 78° | 49° | 63° | — | — |
| 2025 | 69° | 45° | 57° | — | — |
| 2024 | 56° | 52° | 54° | — | — |
| 2023 | 60° | 42° | 51° | — | — |
| 2022 | 74° | 50° | 62° | — | — |
| 2021 | 73° | 60° | 67° | — | — |
| 2020 | 61° | 52° | 56° | — | — |
| 2019 | 74° | 55° | 64° | — | — |
| 2018 | 61° | 45° | 53° | — | — |
| 2017 | 55° | 48° | 52° | — | — |
| 2016 | 68° | 51° | 60° | — | — |
| 2015 | 57° | 46° | 52° | — | — |
| 2014 | 82° | 58° | 70° | — | — |
| 2013 | 80° | 59° | 70° | — | — |
| 2012 | 65° | 46° | 55° | — | — |
| 2011 | 76° | 48° | 62° | — | — |
| 2010 | 55° | 46° | 51° | — | — |
| 2009warmest | 83° | 62° | 72° | — | — |
| 2008 | 63° | 44° | 53° | — | — |
| 2007 | 59° | 43° | 51° | — | — |
| 2006 | 69° | 46° | 58° | — | — |
| 2005 | 80° | 55° | 68° | — | — |
| 2004 | 62° | 48° | 55° | — | — |
| 2003 | 67° | 49° | 58° | — | — |
| 2002 | 68° | 50° | 59° | — | — |
| 2001 | 73° | 49° | 61° | — | — |
| 2000 | 74° | 56° | 65° | — | — |
| 1999 | 57° | 54° | 55° | — | — |
| 1998 | 63° | 45° | 54° | — | — |
| 1997 | 61° | 46° | 53° | — | — |
| 1996 | 65° | 45° | 55° | — | — |
| 1995 | 61° | 45° | 53° | 0.23" | — |
| 1994 | 76° | 43° | 59° | — | — |
| 1993 | 61° | 48° | 54° | — | — |
| 1992 | 70° | 49° | 59° | — | — |
| 1991 | 63° | 48° | 55° | — | — |
| 1990 | 66° | 43° | 54° | — | — |
| 1989 | 74° | 49° | 61° | — | — |
| 1988 | 60° | 36° | 48° | — | — |
| 1987 | 62° | 47° | 54° | — | — |
| 1986 | 62° | 49° | 55° | — | — |
| 1985 | 56° | 50° | 53° | — | — |
| 1984 | 70° | 43° | 56° | — | — |
| 1983 | 59° | 37° | 48° | — | — |
| 1982 | 59° | 47° | 53° | 3.91" | — |
| 1981 | 68° | 48° | 58° | — | — |
| 1980 | 69° | 41° | 55° | — | — |
| 1979 | 66° | 41° | 54° | — | — |
| 1978 | 65° | 48° | 56° | — | — |
| 1977 | 68° | 53° | 61° | 0.18" | — |
| 1976 | 85° | 52° | 68° | — | — |
| 1975 | 75° | 48° | 62° | — | — |
| 1974 | 55° | 52° | 53° | 0.25" | — |
| 1973coldest | 57° | 33° | 45° | — | — |
| 1972 | 61° | 43° | 52° | — | — |
| 1971 | 71° | 54° | 62° | — | — |
56 years of data from EL TORO MCAS