Weather on May 20
San Diego, CA
55 Years of Data
Avg High
69°F
Avg Low
60°F
Warmest
2017
74°F avg
Coldest
1975
59°F avg
About This Date
May 20th in San Diego, CA typically brings mild spring weather, with average highs around 69°F and lows near 60°F. Over 55 years of records, the warmest May 20th was in 2017 (74°F average), while the coldest was 1975 (59°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 11% of May 20th dates historically. 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 May 20th in San Diego, CA? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 59° | 69° | — | — |
| 2024 | 67° | 61° | 64° | — | — |
| 2023 | 67° | 61° | 64° | — | — |
| 2022 | 65° | 58° | 61° | 0.05" | — |
| 2021 | 67° | 61° | 64° | — | — |
| 2020 | 73° | 58° | 65° | — | — |
| 2019 | 67° | 58° | 62° | 0.03" | — |
| 2018 | 65° | 60° | 62° | — | — |
| 2017warmest | 85° | 64° | 74° | — | — |
| 2016 | 66° | 62° | 64° | — | — |
| 2015 | 68° | 61° | 64° | — | — |
| 2014 | 70° | 62° | 66° | — | — |
| 2013 | 70° | 62° | 66° | — | — |
| 2012 | 71° | 61° | 66° | — | — |
| 2011 | 68° | 61° | 64° | — | — |
| 2010 | 71° | 58° | 64° | — | — |
| 2009 | 72° | 60° | 66° | — | — |
| 2008 | 66° | 60° | 63° | — | — |
| 2007 | 64° | 59° | 62° | — | — |
| 2006 | 70° | 63° | 66° | — | — |
| 2005 | 75° | 64° | 70° | — | — |
| 2004 | 69° | 64° | 67° | — | — |
| 2003 | 71° | 59° | 65° | — | — |
| 2002 | 66° | 59° | 63° | — | — |
| 2001 | 70° | 62° | 66° | — | — |
| 2000 | 70° | 59° | 64° | — | — |
| 1999 | 62° | 58° | 60° | — | — |
| 1998 | 66° | 58° | 62° | — | — |
| 1997 | 71° | 63° | 67° | — | — |
| 1996 | 70° | 63° | 66° | — | — |
| 1995 | 66° | 57° | 62° | — | — |
| 1994 | 68° | 53° | 61° | — | — |
| 1993 | 72° | 63° | 67° | 0.03" | — |
| 1992 | 71° | 63° | 67° | — | — |
| 1991 | 66° | 56° | 61° | — | — |
| 1990 | 69° | 59° | 64° | — | — |
| 1989 | 73° | 57° | 65° | — | — |
| 1988 | 75° | 62° | 69° | — | — |
| 1987 | 68° | 60° | 64° | — | — |
| 1986 | 69° | 60° | 65° | — | — |
| 1985 | 68° | 61° | 64° | — | — |
| 1984 | 69° | 63° | 66° | — | — |
| 1983 | 74° | 60° | 67° | — | — |
| 1982 | 66° | 63° | 64° | — | — |
| 1981 | 69° | 62° | 66° | — | — |
| 1980 | 65° | 60° | 62° | — | — |
| 1979 | 67° | 60° | 63° | 0.03" | — |
| 1978 | 74° | 65° | 69° | — | — |
| 1977 | 71° | 58° | 64° | — | — |
| 1976 | 68° | 60° | 64° | — | — |
| 1975coldest | 63° | 55° | 59° | 0.03" | — |
| 1974 | 71° | 53° | 62° | — | — |
| 1973 | 67° | 59° | 63° | — | — |
| 1972 | 66° | 55° | 61° | 0.1" | — |
| 1971 | 67° | 59° | 63° | — | — |
55 years of data from SAN DIEGO INTL AP