Weather on March 17
Mission Viejo, CA
55 Years of Data
Avg High
70°F
Avg Low
49°F
Warmest
2026
84°F avg
Coldest
2012
48°F avg
About This Date
March 17th in Mission Viejo, CA typically brings pleasant spring weather, with average highs around 70°F and lows near 49°F. Over 56 years of records, the warmest March 17th was in 2026 (84°F average), while the coldest was 2012 (48°F) — a 36°F range across recorded history. Rain or other precipitation has occurred on about 5% of March 17th dates historically, with the wettest March 17th recording 5.08" of rain. The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.8°F warmer on this date compared to 20-30 years ago.
Planning for March 17th 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 |
|---|---|---|---|---|---|
| 2026warmest | 99° | 69° | 84° | — | — |
| 2025 | 66° | 48° | 57° | — | — |
| 2024 | 69° | 46° | 58° | — | — |
| 2023 | 72° | 45° | 58° | — | — |
| 2022 | 82° | 54° | 68° | — | — |
| 2021 | 67° | 42° | 54° | — | — |
| 2020 | 60° | 44° | 52° | — | — |
| 2019 | 79° | 55° | 67° | — | — |
| 2018 | 60° | 46° | 53° | — | — |
| 2017 | 79° | 51° | 65° | — | — |
| 2016 | 78° | 54° | 66° | — | — |
| 2015 | 81° | 60° | 70° | — | — |
| 2014 | 74° | 52° | 63° | — | — |
| 2013 | 67° | 49° | 58° | — | — |
| 2012coldest | 54° | 43° | 48° | — | — |
| 2011 | 72° | 49° | 60° | — | — |
| 2010 | 87° | 61° | 74° | — | — |
| 2009 | 82° | 52° | 67° | — | — |
| 2008 | 68° | 41° | 55° | — | — |
| 2007 | 74° | 48° | 61° | — | — |
| 2006 | 57° | 41° | 49° | — | — |
| 2005 | 71° | 47° | 59° | — | — |
| 2004 | 84° | 48° | 66° | — | — |
| 2003 | 63° | 48° | 55° | — | — |
| 2002 | 60° | 42° | 51° | — | — |
| 2001 | 70° | 47° | 58° | — | — |
| 2000 | 77° | 52° | 64° | — | — |
| 1999 | 60° | 41° | 51° | — | — |
| 1998 | 66° | 52° | 59° | — | — |
| 1997 | 70° | 50° | 60° | — | — |
| 1996 | 66° | 52° | 59° | — | — |
| 1995 | 70° | 56° | 63° | — | — |
| 1994 | 76° | 54° | 65° | — | — |
| 1993 | 73° | 58° | 65° | — | — |
| 1992 | 67° | 51° | 59° | — | — |
| 1991 | 65° | 45° | 55° | — | — |
| 1990 | 76° | 54° | 65° | — | — |
| 1989 | 65° | 50° | 57° | — | — |
| 1988 | 77° | 44° | 61° | — | — |
| 1987 | 70° | 46° | 58° | — | — |
| 1986 | 63° | 42° | 52° | — | — |
| 1985 | 66° | 46° | 56° | — | — |
| 1984 | 67° | 48° | 57° | — | — |
| 1983 | 63° | 52° | 57° | 1.04" | — |
| 1982 | 59° | 47° | 53° | 5.08" | — |
| 1981 | 72° | 47° | 59° | — | — |
| 1980 | 75° | 50° | 63° | — | — |
| 1979 | 61° | 48° | 54° | 1.63" | — |
| 1978 | 90° | 62° | 76° | — | — |
| 1977 | 61° | 40° | 50° | — | — |
| 1976 | 79° | 51° | 65° | — | — |
| 1975 | 63° | 38° | 50° | — | — |
| 1974 | 71° | 46° | 59° | — | — |
| 1973 | 63° | 42° | 52° | — | — |
| 1972 | 63° | 52° | 57° | — | — |
| 1971 | 69° | 48° | 59° | — | — |
56 years of data from EL TORO MCAS