Weather on December 23
San Ramon, CA
55 Years of Data
Avg High
54°F
Avg Low
39°F
Warmest
2005
58°F avg
Coldest
1990
29°F avg
About This Date
December 23rd in San Ramon, CA typically brings cool winter weather, with average highs around 54°F and lows near 39°F. Over 54 years of records, the warmest December 23rd was in 2005 (58°F average), while the coldest was 1990 (29°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 24% of December 23rd dates historically, with the wettest December 23rd recording 4.24" of rain. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for December 23rd in San Ramon, CA? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 56° | 50° | 53° | — | — |
| 2024 | 49° | 38° | 43° | — | — |
| 2023 | 62° | 41° | 52° | — | — |
| 2022 | 54° | 43° | 48° | — | — |
| 2021 | 51° | 46° | 49° | 4.24" | — |
| 2020 | 60° | 39° | 50° | — | — |
| 2019 | 57° | 45° | 51° | — | — |
| 2018 | 53° | 42° | 48° | — | — |
| 2017 | 56° | 38° | 47° | — | — |
| 2016 | 56° | 42° | 49° | — | — |
| 2015 | 50° | 36° | 43° | — | — |
| 2014 | 63° | 49° | 56° | 0.05" | — |
| 2013 | 59° | 50° | 55° | — | — |
| 2012 | 45° | 39° | 42° | 3.02" | — |
| 2011 | 55° | 43° | 49° | — | — |
| 2010 | 55° | 37° | 46° | — | — |
| 2009 | 45° | 31° | 38° | 0.1" | — |
| 2008 | 50° | 37° | 44° | — | — |
| 2007 | 54° | 32° | 43° | — | — |
| 2006 | 60° | 39° | 50° | — | — |
| 2005warmest | 60° | 55° | 58° | — | — |
| 2004 | 62° | 44° | 53° | — | — |
| 2003 | 55° | 42° | 49° | 1.37" | — |
| 2002 | 52° | 34° | 43° | — | — |
| 2001 | 45° | 34° | 39° | 1.12" | — |
| 2000 | 55° | 39° | 47° | — | — |
| 1999 | 68° | 44° | 56° | — | — |
| 1998 | 46° | 29° | 37° | — | — |
| 1997 | 58° | 36° | 47° | — | — |
| 1996 | 60° | 41° | 51° | — | — |
| 1995 | 51° | 42° | 47° | — | — |
| 1994 | 50° | 31° | 40° | — | — |
| 1993 | 43° | 39° | 41° | — | — |
| 1992 | 53° | 32° | 43° | — | — |
| 1991 | 63° | 41° | 52° | — | — |
| 1990coldest | 35° | 23° | 29° | — | — |
| 1989 | 64° | 43° | 53° | — | — |
| 1987 | 48° | 32° | 40° | 0.36" | — |
| 1986 | 49° | 36° | 42° | — | — |
| 1985 | 67° | 48° | 57° | — | — |
| 1984 | 53° | 35° | 44° | — | — |
| 1983 | 42° | 34° | 38° | 1.22" | — |
| 1982 | 52° | 35° | 43° | 2.82" | — |
| 1981 | 54° | 40° | 47° | — | — |
| 1980 | 59° | 39° | 49° | — | — |
| 1979 | 49° | 37° | 43° | 3" | — |
| 1978 | 59° | 40° | 49° | — | — |
| 1977 | 54° | 41° | 47° | 1.88" | — |
| 1976 | 60° | 45° | 52° | — | — |
| 1975 | 53° | 41° | 47° | — | — |
| 1974 | 49° | 30° | 39° | — | — |
| 1973 | 53° | 38° | 45° | 0.05" | — |
| 1972 | 54° | 41° | 47° | — | — |
| 1971 | 47° | 35° | 41° | 0.71" | — |
54 years of data from LIVERMORE CALIFORNIA