Weather on December 16
San Ramon, CA
55 Years of Data
About This Date
December 16th in San Ramon, CA typically brings cool winter weather, with average highs around 54°F and lows near 40°F. Over 55 years of records, the warmest December 16th was in 1980 (64°F average), while the coldest was 1991 (34°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 22% of December 16th dates historically, with the wettest December 16th recording 6.12" 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 December 16th in San Ramon, CA? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 55° | 60° | — | — |
| 2024 | 49° | 36° | 42° | 0.03" | — |
| 2023 | 59° | 45° | 52° | — | — |
| 2022 | 52° | 39° | 45° | — | — |
| 2021 | 44° | 40° | 42° | 2.44" | — |
| 2020 | 52° | 43° | 47° | — | — |
| 2019 | 53° | 41° | 47° | — | — |
| 2018 | 55° | 47° | 51° | 0.05" | — |
| 2017 | 67° | 43° | 55° | — | — |
| 2016 | 53° | 34° | 43° | 6.12" | — |
| 2015 | 45° | 36° | 40° | — | — |
| 2014 | 47° | 44° | 45° | 0.74" | — |
| 2013 | 60° | 50° | 55° | — | — |
| 2012 | 43° | 36° | 39° | 0.89" | — |
| 2011 | 53° | 38° | 45° | 0.33" | — |
| 2010 | 48° | 33° | 41° | — | — |
| 2009 | 50° | 45° | 47° | 0.05" | — |
| 2008 | 38° | 30° | 34° | 0.15" | — |
| 2007 | 54° | 28° | 41° | — | — |
| 2006 | 48° | 36° | 42° | — | — |
| 2005 | 49° | 34° | 41° | — | — |
| 2004 | 58° | 45° | 51° | — | — |
| 2003 | 50° | 33° | 42° | — | — |
| 2002 | 52° | 44° | 48° | 5.92" | — |
| 2001 | 50° | 35° | 43° | — | — |
| 2000 | 63° | 46° | 54° | — | — |
| 1999 | 63° | 34° | 48° | — | — |
| 1998 | 73° | 51° | 62° | — | — |
| 1997 | 56° | 40° | 48° | — | — |
| 1996 | 54° | 42° | 48° | — | — |
| 1995 | 58° | 40° | 49° | — | — |
| 1994 | 59° | 38° | 48° | — | — |
| 1993 | 51° | 34° | 42° | — | — |
| 1992 | 56° | 39° | 47° | — | — |
| 1991coldest | 40° | 29° | 34° | — | — |
| 1990 | 50° | 38° | 44° | — | — |
| 1989 | 64° | 40° | 52° | — | — |
| 1988 | 59° | 35° | 47° | — | — |
| 1987 | 45° | 40° | 42° | 0.18" | — |
| 1986 | 55° | 38° | 46° | — | — |
| 1985 | 60° | 41° | 51° | — | — |
| 1984 | 43° | 29° | 36° | 0.89" | — |
| 1983 | 54° | 45° | 49° | — | — |
| 1982 | 53° | 45° | 49° | — | — |
| 1981 | 57° | 41° | 49° | — | — |
| 1980warmest | 76° | 52° | 64° | — | — |
| 1979 | 68° | 49° | 58° | — | — |
| 1978 | 55° | 42° | 49° | — | — |
| 1977 | 54° | 44° | 49° | — | — |
| 1976 | 67° | 45° | 56° | — | — |
| 1975 | 47° | 32° | 39° | — | — |
| 1974 | 58° | 45° | 51° | — | — |
| 1973 | 58° | 42° | 50° | — | — |
| 1972 | 52° | 24° | 38° | — | — |
| 1971 | 47° | 30° | 38° | — | — |
San Ramon, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Ramon, CA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
San Ramon, 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 Ramon, CA
San Ramon, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.