Weather on December 15
San Leandro, CA
55 Years of Data
About This Date
December 15th in San Leandro, CA typically brings cool winter weather, with average highs around 56°F and lows near 43°F. Over 53 years of records, the warmest December 15th was in 1983 (59°F average), while the coldest was 1971 (41°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 11% of December 15th dates historically, with the wettest December 15th recording 4.17" of rain. The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
Planning for December 15th in San Leandro, CA? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 55° | 36° | 45° | — | — |
| 2024 | 47° | 43° | 45° | — | — |
| 2023 | 56° | 47° | 51° | — | — |
| 2022 | 52° | 39° | 45° | — | — |
| 2021 | 47° | 39° | 43° | — | — |
| 2020 | 54° | 46° | 50° | — | — |
| 2019 | 52° | 40° | 46° | — | — |
| 2018 | 58° | 50° | 54° | — | — |
| 2017 | 58° | 47° | 52° | — | — |
| 2016 | 55° | 45° | 50° | — | — |
| 2015 | 50° | 39° | 45° | — | — |
| 2014 | 49° | 45° | 47° | — | — |
| 2013 | 57° | 44° | 51° | — | — |
| 2012 | 45° | 39° | 42° | — | — |
| 2011 | 46° | 42° | 44° | — | — |
| 2010 | 50° | 43° | 46° | — | — |
| 2009 | 54° | 46° | 50° | — | — |
| 2008 | 52° | 40° | 46° | 0.43" | — |
| 2007 | 56° | 39° | 47° | — | — |
| 2006 | 58° | 48° | 53° | 0.08" | — |
| 2005 | 59° | 46° | 53° | — | — |
| 2004 | 58° | 51° | 54° | — | — |
| 2003 | 52° | 38° | 45° | — | — |
| 2002 | 53° | 50° | 52° | — | — |
| 2001 | 53° | 41° | 47° | — | — |
| 2000 | 61° | 49° | 55° | — | — |
| 1999 | 57° | 41° | 49° | — | — |
| 1998 | 59° | 47° | 53° | — | — |
| 1997 | 55° | 41° | 48° | — | — |
| 1996 | 54° | 49° | 51° | — | — |
| 1995 | 59° | 54° | 56° | — | — |
| 1994 | 61° | 57° | 59° | — | — |
| 1993 | 53° | 41° | 47° | — | — |
| 1992 | 56° | 39° | 47° | — | — |
| 1989 | 66° | 42° | 54° | — | — |
| 1988 | 53° | 49° | 51° | — | — |
| 1987 | 53° | 39° | 46° | — | — |
| 1986 | 48° | 46° | 47° | — | — |
| 1985 | 57° | 40° | 48° | — | — |
| 1984 | 61° | 41° | 51° | 0.58" | — |
| 1983warmest | 65° | 54° | 59° | — | — |
| 1982 | 52° | 40° | 46° | — | — |
| 1981 | 66° | 43° | 54° | — | — |
| 1980 | 66° | 42° | 54° | — | — |
| 1979 | 63° | 44° | 53° | — | — |
| 1978 | 63° | 42° | 52° | — | — |
| 1977 | 60° | 43° | 51° | 4.17" | — |
| 1976 | 66° | 46° | 56° | — | — |
| 1975 | 55° | 38° | 46° | — | — |
| 1974 | 53° | 45° | 49° | 0.08" | — |
| 1973 | 57° | 39° | 48° | — | — |
| 1972 | 58° | 26° | 42° | — | — |
| 1971coldest | 48° | 33° | 41° | 0.2" | — |
San Leandro, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Leandro, CA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
San Leandro, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit San Leandro, CA
Most pleasant months in San Leandro, CA: August.