Weather on May 20
San Jose, CA
55 Years of Data
Avg High
75°F
Avg Low
53°F
Warmest
1988
77°F avg
Coldest
1974
55°F avg
About This Date
May 20th in San Jose, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 53°F. Over 55 years of records, the warmest May 20th was in 1988 (77°F average), while the coldest was 1974 (55°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 20th dates historically, with the wettest May 20th recording 0.91" of rain. The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
Planning for May 20th in San Jose, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 53° | 65° | — | — |
| 2024 | 78° | 52° | 65° | — | — |
| 2023 | 68° | 55° | 62° | — | — |
| 2022 | 79° | 51° | 65° | — | — |
| 2021 | 67° | 48° | 57° | — | — |
| 2020 | 72° | 55° | 63° | — | — |
| 2019 | 66° | 48° | 57° | — | — |
| 2018 | 67° | 55° | 61° | — | — |
| 2017 | 89° | 57° | 73° | — | — |
| 2016 | 65° | 53° | 59° | — | — |
| 2015 | 67° | 55° | 61° | — | — |
| 2014 | 72° | 53° | 62° | — | — |
| 2013 | 89° | 53° | 71° | — | — |
| 2012 | 82° | 53° | 68° | — | — |
| 2011 | 71° | 52° | 61° | — | — |
| 2010 | 70° | 49° | 59° | — | — |
| 2009 | 72° | 50° | 61° | — | — |
| 2008 | 75° | 54° | 64° | — | — |
| 2007 | 68° | 53° | 61° | — | — |
| 2006 | 74° | 56° | 65° | — | — |
| 2005 | 71° | 53° | 62° | — | — |
| 2004 | 66° | 53° | 60° | — | — |
| 2003 | 87° | 57° | 72° | — | — |
| 2002 | 63° | 51° | 57° | 0.91" | — |
| 2001 | 91° | 56° | 73° | — | — |
| 2000 | 87° | 57° | 72° | — | — |
| 1999 | 62° | 50° | 56° | — | — |
| 1998 | 68° | 49° | 58° | — | — |
| 1997 | 82° | 58° | 70° | — | — |
| 1996 | 74° | 50° | 62° | — | — |
| 1995 | 79° | 55° | 67° | — | — |
| 1994 | 71° | 53° | 62° | — | — |
| 1993 | 75° | 64° | 70° | — | — |
| 1992 | 78° | 58° | 68° | — | — |
| 1991 | 73° | 47° | 60° | — | — |
| 1990 | 70° | 57° | 63° | — | — |
| 1989 | 69° | 51° | 60° | — | — |
| 1988warmest | 97° | 57° | 77° | — | — |
| 1987 | 75° | 55° | 65° | — | — |
| 1986 | 72° | 55° | 63° | — | — |
| 1985 | 77° | 51° | 64° | — | — |
| 1984 | 73° | 52° | 62° | — | — |
| 1983 | 91° | 58° | 74° | — | — |
| 1982 | 80° | 52° | 66° | — | — |
| 1981 | 70° | 47° | 58° | 0.1" | — |
| 1980 | 83° | 57° | 70° | — | — |
| 1979 | 73° | 55° | 64° | — | — |
| 1978 | 89° | 58° | 73° | — | — |
| 1977 | 72° | 49° | 60° | — | — |
| 1976 | 78° | 45° | 61° | — | — |
| 1975 | 71° | 47° | 59° | — | — |
| 1974coldest | 65° | 46° | 55° | — | — |
| 1973 | 69° | 51° | 60° | — | — |
| 1972 | 69° | 50° | 60° | — | — |
| 1971 | 74° | 46° | 60° | — | — |
55 years of data from SAN JOSE