Weather on May 20
Chula Vista, CA
55 Years of Data
Avg High
69°F
Avg Low
58°F
Warmest
2001
70°F avg
Coldest
1974
53°F avg
About This Date
May 20th in Chula Vista, CA typically brings mild spring weather, with average highs around 69°F and lows near 58°F. Over 55 years of records, the warmest May 20th was in 2001 (70°F average), while the coldest was 1974 (53°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 7% of May 20th dates historically. The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
Planning for May 20th in Chula Vista, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 58° | 67° | — | — |
| 2024 | 67° | 59° | 63° | — | — |
| 2023 | 66° | 60° | 63° | — | — |
| 2022 | 67° | 57° | 62° | — | — |
| 2021 | 65° | 58° | 61° | — | — |
| 2020 | 71° | 54° | 62° | — | — |
| 2019 | 67° | 57° | 62° | 0.15" | — |
| 2018 | 64° | 59° | 62° | — | — |
| 2017 | 83° | 58° | 70° | — | — |
| 2016 | 65° | 59° | 62° | — | — |
| 2015 | 69° | 61° | 65° | — | — |
| 2014 | 70° | 60° | 65° | — | — |
| 2013 | 71° | 59° | 65° | — | — |
| 2012 | 75° | 60° | 68° | — | — |
| 2011 | 66° | 57° | 62° | — | — |
| 2010 | 70° | 57° | 63° | — | — |
| 2009 | 74° | 61° | 67° | — | — |
| 2008 | 73° | 63° | 68° | — | — |
| 2007 | 69° | 56° | 62° | — | — |
| 2006 | 76° | 57° | 66° | — | — |
| 2005 | 77° | 56° | 66° | — | — |
| 2004 | 69° | 61° | 65° | — | — |
| 2003 | 67° | 56° | 61° | — | — |
| 2002 | 66° | — | — | — | — |
| 2001warmest | 73° | 67° | 70° | — | — |
| 2000 | 69° | 60° | 65° | — | — |
| 1999 | 65° | 58° | 61° | — | — |
| 1998 | 67° | 55° | 61° | — | — |
| 1997 | 72° | 59° | 65° | — | — |
| 1996 | 72° | 63° | 67° | — | — |
| 1995 | 67° | 61° | 64° | — | — |
| 1994 | 69° | 50° | 60° | — | — |
| 1993 | 71° | 64° | 68° | — | — |
| 1992 | 71° | 63° | 67° | — | — |
| 1991 | 65° | 56° | 60° | — | — |
| 1990 | 69° | 57° | 63° | — | — |
| 1989 | 74° | 54° | 64° | — | — |
| 1988 | 78° | 57° | 68° | — | — |
| 1987 | 69° | 59° | 64° | — | — |
| 1986 | 70° | 60° | 65° | — | — |
| 1985 | 71° | 59° | 65° | — | — |
| 1984 | 71° | 54° | 62° | — | — |
| 1983 | 73° | 54° | 63° | — | — |
| 1982 | 66° | 59° | 63° | — | — |
| 1981 | 66° | 58° | 62° | 0.05" | — |
| 1980 | 65° | 57° | 61° | — | — |
| 1979 | 65° | 58° | 61° | — | — |
| 1978 | 76° | 63° | 69° | — | — |
| 1977 | 64° | 52° | 58° | — | — |
| 1976 | 64° | 57° | 61° | — | — |
| 1975 | 60° | 54° | 57° | 0.08" | — |
| 1974coldest | 61° | 46° | 53° | — | — |
| 1973 | 63° | 57° | 60° | — | — |
| 1972 | 64° | 51° | 58° | 0.18" | — |
| 1971 | 70° | 54° | 62° | — | — |
55 years of data from CHULA VISTA