Weather on March 20
Oceanside, CA
55 Years of Data
Avg High
66°F
Avg Low
48°F
Warmest
2026
68°F avg
Coldest
1987
51°F avg
About This Date
March 20th in Oceanside, CA typically brings mild spring weather, with average highs around 66°F and lows near 48°F. Over 56 years of records, the warmest March 20th was in 2026 (68°F average), while the coldest was 1987 (51°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 27% of March 20th dates historically, with the wettest March 20th recording 2.57" 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 March 20th in Oceanside, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 85° | 51° | 68° | — | — |
| 2025 | 69° | 40° | 54° | — | — |
| 2024 | 67° | 44° | 55° | — | — |
| 2023 | 61° | 55° | 58° | 0.28" | — |
| 2022 | 67° | 49° | 58° | 0.25" | — |
| 2021 | 64° | 44° | 54° | — | — |
| 2020 | 65° | 50° | 57° | 0.1" | — |
| 2019 | 65° | 47° | 56° | 0.13" | — |
| 2018 | 67° | 45° | 56° | — | — |
| 2017 | 66° | 50° | 58° | — | — |
| 2016 | 66° | 54° | 60° | — | — |
| 2015 | 72° | 51° | 61° | — | — |
| 2014 | 71° | 43° | 57° | — | — |
| 2013 | 68° | 48° | 58° | — | — |
| 2012 | 64° | 39° | 52° | — | — |
| 2011 | 61° | 50° | 55° | 2.57" | — |
| 2010 | 72° | 42° | 57° | 0.03" | — |
| 2009 | 63° | 51° | 57° | — | — |
| 2008 | 62° | 44° | 53° | — | — |
| 2007 | 65° | 56° | 60° | 0.05" | — |
| 2006 | 61° | 44° | 52° | 0.08" | — |
| 2005 | 66° | 52° | 59° | 0.38" | — |
| 2004 | 67° | 55° | 61° | — | — |
| 2003 | 63° | 47° | 55° | — | — |
| 2002 | 69° | 37° | 53° | — | — |
| 2001 | 74° | 46° | 60° | — | — |
| 2000 | 72° | 46° | 59° | — | — |
| 1999 | 58° | 47° | 52° | — | — |
| 1998 | 63° | 48° | 55° | — | — |
| 1997 | 72° | 53° | 62° | — | — |
| 1996 | 60° | 52° | 56° | — | — |
| 1995 | 63° | 59° | 61° | — | — |
| 1994 | 69° | 51° | 60° | 1.88" | — |
| 1993 | 64° | 58° | 61° | — | — |
| 1992 | 66° | 47° | 56° | 0.3" | — |
| 1991 | 57° | 47° | 52° | 1.73" | — |
| 1990 | 63° | 49° | 56° | — | — |
| 1989 | 62° | 45° | 53° | — | — |
| 1988 | 77° | 53° | 65° | — | — |
| 1987coldest | 58° | 44° | 51° | — | — |
| 1986 | 67° | 42° | 54° | — | — |
| 1985 | 60° | 44° | 52° | — | — |
| 1984 | 71° | 50° | 61° | — | — |
| 1983 | 67° | 56° | 61° | — | — |
| 1982 | 62° | 42° | 52° | — | — |
| 1981 | 62° | 52° | 57° | 1.75" | — |
| 1980 | 65° | 45° | 55° | — | — |
| 1979 | 61° | 48° | 54° | 1.17" | — |
| 1978 | 65° | 48° | 56° | — | — |
| 1977 | 68° | 42° | 55° | — | — |
| 1976 | 67° | 45° | 56° | — | — |
| 1975 | 65° | 41° | 53° | — | — |
| 1974 | 65° | 55° | 60° | — | — |
| 1973 | 61° | 47° | 54° | 1.73" | — |
| 1972 | 64° | 54° | 59° | — | — |
| 1971 | 63° | 46° | 54° | — | — |
56 years of data from OCEANSIDE MUNI AP