Weather on December 14
Sunnyvale, CA
55 Years of Data
About This Date
December 14th in Sunnyvale, CA typically brings cool winter weather, with average highs around 59°F and lows near 43°F. Over 55 years of records, the warmest December 14th was in 2006 (61°F average), while the coldest was 1972 (38°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 27% of December 14th dates historically, with the wettest December 14th recording 3.18" 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 14th in Sunnyvale, CA? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 54° | 43° | 48° | — | — |
| 2024 | 59° | 48° | 54° | — | — |
| 2023 | 64° | 40° | 52° | — | — |
| 2022 | 56° | 36° | 46° | — | — |
| 2021 | 52° | 39° | 45° | 0.28" | — |
| 2020 | 57° | 42° | 50° | — | — |
| 2019 | 58° | 48° | 53° | 0.1" | — |
| 2018 | 65° | 44° | 54° | — | — |
| 2017 | 69° | 38° | 53° | — | — |
| 2016 | 64° | 51° | 58° | — | — |
| 2015 | 55° | 39° | 47° | — | — |
| 2014 | 61° | 44° | 52° | 0.18" | — |
| 2013 | 61° | 34° | 47° | — | — |
| 2012 | 52° | 37° | 44° | — | — |
| 2011 | 60° | 42° | 51° | — | — |
| 2010 | 63° | 53° | 58° | 0.69" | — |
| 2009 | 59° | 45° | 52° | — | — |
| 2008 | 51° | 36° | 43° | 0.71" | — |
| 2007 | 56° | 34° | 45° | — | — |
| 2006warmest | 66° | 55° | 61° | — | — |
| 2005 | 58° | 39° | 48° | — | — |
| 2004 | 59° | 49° | 54° | 0.03" | — |
| 2003 | 57° | 40° | 48° | 0.79" | — |
| 2002 | 64° | 50° | 57° | 3.18" | — |
| 2001 | 53° | 46° | 50° | 0.43" | — |
| 2000 | 58° | 50° | 54° | 0.23" | — |
| 1999 | 59° | 38° | 48° | — | — |
| 1998 | 57° | 44° | 51° | — | — |
| 1997 | 58° | 44° | 51° | — | — |
| 1996 | 62° | 48° | 55° | — | — |
| 1995 | 63° | 44° | 53° | 0.23" | — |
| 1994 | 52° | 42° | 47° | 0.46" | — |
| 1993 | 59° | 47° | 53° | 0.86" | — |
| 1992 | 63° | 40° | 51° | — | — |
| 1991 | 54° | 40° | 47° | — | — |
| 1990 | 56° | 37° | 46° | — | — |
| 1989 | 65° | 37° | 51° | — | — |
| 1988 | 72° | 42° | 57° | — | — |
| 1987 | 56° | 41° | 48° | — | — |
| 1986 | 52° | 48° | 50° | — | — |
| 1985 | 54° | 34° | 44° | — | — |
| 1984 | 61° | 42° | 51° | — | — |
| 1983 | 63° | 56° | 59° | — | — |
| 1982 | 53° | 41° | 47° | — | — |
| 1981 | 64° | 55° | 60° | 0.1" | — |
| 1980 | 64° | 36° | 50° | — | — |
| 1979 | 60° | 38° | 49° | — | — |
| 1978 | 63° | 38° | 50° | — | — |
| 1977 | 67° | 50° | 58° | 0.38" | — |
| 1976 | 64° | 35° | 50° | — | — |
| 1975 | 56° | 39° | 47° | — | — |
| 1974 | 58° | 45° | 51° | — | — |
| 1973 | 59° | 50° | 55° | — | — |
| 1972coldest | 46° | 30° | 38° | — | — |
| 1971 | 54° | 39° | 46° | — | — |
Sunnyvale, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Sunnyvale, CA Monthly Precipitation
Average rainfall per month, in inches.
Sunnyvale, 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 Sunnyvale, CA
Most pleasant months in Sunnyvale, CA: July, August.