Weather on May 20
San Leandro, CA
55 Years of Data
Avg High
70°F
Avg Low
50°F
Warmest
2008
105°F avg
Coldest
2016
50°F avg
About This Date
May 20th in San Leandro, CA typically brings pleasant spring weather, with average highs around 70°F and lows near 50°F. Over 52 years of records, the warmest May 20th was in 2008 (105°F average), while the coldest was 2016 (50°F) — a 55°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
Planning for May 20th in San Leandro, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 49° | 61° | — | — |
| 2024 | 72° | 46° | 59° | — | — |
| 2023 | 56° | 48° | 52° | — | — |
| 2022 | 76° | 50° | 63° | — | — |
| 2021 | 64° | 41° | 53° | — | — |
| 2020 | 67° | 50° | 58° | — | — |
| 2019 | 59° | 45° | 52° | — | — |
| 2018 | 57° | 47° | 52° | — | — |
| 2017 | 83° | 60° | 71° | — | — |
| 2016coldest | 55° | 45° | 50° | — | — |
| 2015 | 53° | 48° | 51° | — | — |
| 2014 | 64° | 48° | 56° | — | — |
| 2013 | 81° | 48° | 64° | — | — |
| 2012 | 76° | 49° | 62° | — | — |
| 2011 | 62° | 47° | 54° | — | — |
| 2010 | 66° | 43° | 54° | — | — |
| 2009 | 66° | 51° | 59° | — | — |
| 2008warmest | 115° | 95° | 105° | — | — |
| 2007 | 76° | 45° | 60° | — | — |
| 2006 | 70° | 54° | 62° | — | — |
| 2005 | 68° | 50° | 59° | — | — |
| 2004 | 61° | 49° | 55° | — | — |
| 2003 | 85° | 56° | 70° | — | — |
| 2002 | 55° | 46° | 51° | — | — |
| 2001 | 88° | 55° | 71° | — | — |
| 2000 | 88° | 59° | 73° | — | — |
| 1999 | 57° | 46° | 52° | — | — |
| 1998 | 60° | 44° | 52° | — | — |
| 1997 | 64° | 52° | 58° | — | — |
| 1996 | 65° | 49° | 57° | — | — |
| 1995 | 63° | 54° | 58° | — | — |
| 1994 | 64° | 50° | 57° | — | — |
| 1993 | 67° | 55° | 61° | — | — |
| 1989 | 76° | 46° | 61° | — | — |
| 1988 | 75° | 50° | 63° | — | — |
| 1987 | 66° | 52° | 59° | — | — |
| 1986 | 63° | 50° | 56° | — | — |
| 1985 | 67° | 51° | 59° | — | — |
| 1984 | 72° | 50° | 61° | — | — |
| 1983 | 88° | 56° | 72° | — | — |
| 1982 | 78° | 46° | 62° | — | — |
| 1981 | 63° | 49° | 56° | — | — |
| 1980 | 82° | 49° | 65° | — | — |
| 1979 | 68° | 55° | 62° | — | — |
| 1978 | 90° | 52° | 71° | — | — |
| 1977 | 70° | 51° | 60° | — | — |
| 1976 | 66° | 41° | 54° | — | — |
| 1975 | 65° | 43° | 54° | — | — |
| 1974 | 64° | 37° | 51° | — | — |
| 1973 | 60° | 53° | 57° | — | — |
| 1972 | 62° | 49° | 55° | — | — |
| 1971 | 69° | 46° | 58° | — | — |
52 years of data from UPPER SAN LEANDRO FILTERS