Weather on August 31
San Leandro, CA
55 Years of Data
Avg High
78°F
Avg Low
56°F
Warmest
2009
137°F avg
Coldest
2012
53°F avg
About This Date
August 31st in San Leandro, CA typically brings pleasant summer weather, with average highs around 78°F and lows near 56°F. Over 53 years of records, the warmest August 31st was in 2009 (137°F average), while the coldest was 2012 (53°F) — a 84°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 31st 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 August 31st in San Leandro, CA? Great weather for outdoor activities.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 65° | 78° | — | — |
| 2024 | 74° | 54° | 64° | — | — |
| 2023 | 76° | 57° | 66° | — | — |
| 2022 | 81° | 53° | 67° | — | — |
| 2021 | 71° | 52° | 61° | — | — |
| 2020 | 75° | 53° | 64° | — | — |
| 2019 | 88° | 58° | 73° | — | — |
| 2018 | 74° | 53° | 63° | — | — |
| 2017 | 97° | 55° | 76° | — | — |
| 2016 | 68° | 54° | 61° | — | — |
| 2015 | 79° | 57° | 68° | — | — |
| 2014 | 78° | 56° | 67° | — | — |
| 2013 | 75° | 55° | 65° | — | — |
| 2012coldest | 55° | 51° | 53° | — | — |
| 2011 | 69° | 52° | 60° | — | — |
| 2010 | 77° | 52° | 64° | — | — |
| 2009warmest | 138° | 136° | 137° | — | — |
| 2008 | 72° | 57° | 64° | — | — |
| 2007 | 85° | 59° | 72° | — | — |
| 2006 | 85° | 58° | 71° | — | — |
| 2005 | 92° | 63° | 77° | — | — |
| 2004 | 77° | 56° | 66° | — | — |
| 2003 | 79° | 53° | 66° | — | — |
| 2002 | 92° | 53° | 72° | — | — |
| 2001 | 74° | 54° | 64° | — | — |
| 2000 | 67° | 56° | 61° | — | — |
| 1999 | 72° | 52° | 62° | — | — |
| 1998 | 90° | 50° | 70° | — | — |
| 1997 | 73° | 58° | 65° | — | — |
| 1996 | 76° | 54° | 65° | — | — |
| 1995 | 72° | 51° | 61° | — | — |
| 1994 | 70° | 54° | 62° | — | — |
| 1993 | 73° | 56° | 64° | — | — |
| 1992 | 68° | 52° | 60° | — | — |
| 1989 | 72° | 51° | 61° | — | — |
| 1988 | 79° | 53° | 66° | — | — |
| 1987 | 75° | 56° | 65° | — | — |
| 1986 | 79° | 56° | 67° | — | — |
| 1985 | 84° | 54° | 69° | — | — |
| 1984 | 73° | 52° | 62° | 0.23" | — |
| 1983 | 76° | 58° | 67° | — | — |
| 1982 | 79° | 52° | 65° | — | — |
| 1981 | 77° | 55° | 66° | — | — |
| 1980 | 74° | 54° | 64° | — | — |
| 1979 | 75° | 58° | 66° | — | — |
| 1978 | 70° | 56° | 63° | — | — |
| 1977 | 84° | 54° | 69° | — | — |
| 1976 | 88° | 52° | 70° | — | — |
| 1975 | 76° | 50° | 63° | — | — |
| 1974 | 62° | 55° | 59° | — | — |
| 1973 | 70° | 49° | 59° | — | — |
| 1972 | 85° | 52° | 68° | — | — |
| 1971 | 74° | 54° | 64° | — | — |
53 years of data from UPPER SAN LEANDRO FILTERS