Weather on May 18
San Jose, CA
55 Years of Data
Avg High
75°F
Avg Low
52°F
Warmest
1997
82°F avg
Coldest
1974
50°F avg
About This Date
May 18th in San Jose, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 52°F. Over 55 years of records, the warmest May 18th was in 1997 (82°F average), while the coldest was 1974 (50°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 5% of May 18th dates historically, with the wettest May 18th recording 0.66" 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 May 18th in San Jose, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 50° | 63° | — | — |
| 2024 | 78° | 57° | 68° | — | — |
| 2023 | 71° | 56° | 63° | — | — |
| 2022 | 86° | 50° | 68° | — | — |
| 2021 | 73° | 50° | 62° | — | — |
| 2020 | 71° | 54° | 62° | 0.15" | — |
| 2019 | 60° | 45° | 52° | 0.66" | — |
| 2018 | 70° | 56° | 63° | — | — |
| 2017 | 80° | 48° | 64° | — | — |
| 2016 | 88° | 60° | 74° | — | — |
| 2015 | 65° | 54° | 59° | — | — |
| 2014 | 72° | 56° | 64° | — | — |
| 2013 | 73° | 46° | 60° | — | — |
| 2012 | 78° | 50° | 64° | — | — |
| 2011 | 68° | 51° | 60° | — | — |
| 2010 | 70° | 54° | 62° | — | — |
| 2009 | 76° | 56° | 66° | — | — |
| 2008 | 87° | 56° | 71° | — | — |
| 2007 | 72° | 50° | 61° | — | — |
| 2006 | 75° | 54° | 64° | — | — |
| 2005 | 71° | 58° | 64° | — | — |
| 2004 | 70° | 53° | 61° | — | — |
| 2003 | 75° | 49° | 62° | — | — |
| 2002 | 72° | 50° | 61° | — | — |
| 2001 | 80° | 52° | 66° | — | — |
| 2000 | 84° | 53° | 69° | — | — |
| 1999 | 67° | 50° | 58° | — | — |
| 1998 | 76° | 46° | 61° | — | — |
| 1997warmest | 100° | 64° | 82° | — | — |
| 1996 | 71° | 54° | 62° | — | — |
| 1995 | 79° | 55° | 67° | — | — |
| 1994 | 71° | 53° | 62° | — | — |
| 1993 | 82° | 53° | 68° | — | — |
| 1992 | 78° | 52° | 65° | — | — |
| 1991 | 61° | 48° | 54° | — | — |
| 1990 | 65° | 49° | 57° | — | — |
| 1989 | 72° | 52° | 62° | — | — |
| 1988 | 76° | 47° | 61° | — | — |
| 1987 | 69° | 56° | 62° | — | — |
| 1986 | 78° | 54° | 66° | — | — |
| 1985 | 71° | 48° | 60° | — | — |
| 1984 | 77° | 48° | 63° | — | — |
| 1983 | 86° | 54° | 70° | — | — |
| 1982 | 71° | 46° | 59° | — | — |
| 1981 | 69° | 58° | 63° | 0.23" | — |
| 1980 | 79° | 53° | 66° | — | — |
| 1979 | 86° | 54° | 70° | — | — |
| 1978 | 89° | 54° | 71° | — | — |
| 1977 | 66° | 43° | 54° | — | — |
| 1976 | 65° | 45° | 55° | — | — |
| 1975 | 84° | 49° | 66° | — | — |
| 1974coldest | 61° | 40° | 50° | — | — |
| 1973 | 88° | 56° | 72° | — | — |
| 1972 | 70° | 46° | 58° | — | — |
| 1971 | 80° | 46° | 63° | — | — |
55 years of data from SAN JOSE