Weather on December 19
Sunnyvale, CA
55 Years of Data
Avg High
59°F
Avg Low
42°F
Warmest
2023
63°F avg
Coldest
2006
43°F avg
About This Date
December 19th in Sunnyvale, CA typically brings cool winter weather, with average highs around 59°F and lows near 42°F. Over 55 years of records, the warmest December 19th was in 2023 (63°F average), while the coldest was 2006 (43°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 27% of December 19th dates historically, with the wettest December 19th recording 2.54" 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 19th in Sunnyvale, CA? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 50° | 58° | — | — |
| 2024 | 63° | 39° | 51° | — | — |
| 2023warmest | 67° | 59° | 63° | 0.76" | — |
| 2022 | 52° | 35° | 43° | — | — |
| 2021 | 57° | 32° | 45° | — | — |
| 2020 | 60° | 36° | 48° | — | — |
| 2019 | 63° | 48° | 55° | — | — |
| 2018 | 61° | 46° | 53° | — | — |
| 2017 | 60° | 38° | 49° | — | — |
| 2016 | 54° | 32° | 43° | — | — |
| 2015 | 56° | 46° | 51° | 0.2" | — |
| 2014 | 59° | 53° | 56° | 0.33" | — |
| 2013 | 59° | 44° | 52° | — | — |
| 2012 | 54° | 33° | 43° | — | — |
| 2011 | 65° | 46° | 55° | — | — |
| 2010 | 63° | 51° | 57° | 2.54" | — |
| 2009 | 58° | 46° | 52° | 0.03" | — |
| 2008 | 55° | 39° | 47° | 0.63" | — |
| 2007 | 60° | 39° | 50° | — | — |
| 2006coldest | 54° | 31° | 43° | — | — |
| 2005 | 65° | 50° | 57° | — | — |
| 2004 | 61° | 37° | 49° | — | — |
| 2003 | 55° | 44° | 50° | 0.61" | — |
| 2002 | 54° | 43° | 48° | 2.51" | — |
| 2001 | 58° | 39° | 48° | 0.13" | — |
| 2000 | 61° | 38° | 49° | — | — |
| 1999 | 68° | 41° | 55° | — | — |
| 1998 | 51° | 41° | 46° | — | — |
| 1997 | 60° | 41° | 51° | — | — |
| 1996 | 59° | 38° | 48° | — | — |
| 1995 | 56° | 48° | 52° | — | — |
| 1994 | 53° | 42° | 48° | — | — |
| 1993 | 58° | 37° | 47° | — | — |
| 1992 | 55° | 33° | 44° | — | — |
| 1991 | 60° | 43° | 51° | — | — |
| 1990 | 50° | 38° | 44° | 0.46" | — |
| 1989 | 59° | 38° | 48° | — | — |
| 1988 | 58° | 46° | 52° | — | — |
| 1987 | 60° | 44° | 52° | — | — |
| 1986 | 61° | 44° | 52° | 0.05" | — |
| 1985 | 60° | 37° | 49° | — | — |
| 1984 | 53° | 43° | 48° | 0.2" | — |
| 1983 | 55° | 48° | 52° | — | — |
| 1982 | 61° | 39° | 50° | — | — |
| 1981 | 64° | 57° | 61° | 0.46" | — |
| 1980 | 60° | 50° | 55° | — | — |
| 1979 | 60° | 49° | 54° | 1.17" | — |
| 1978 | 54° | 38° | 46° | — | — |
| 1977 | 54° | 38° | 46° | — | — |
| 1976 | 61° | 37° | 49° | — | — |
| 1975 | 61° | 37° | 49° | — | — |
| 1974 | 60° | 38° | 49° | — | — |
| 1973 | 61° | 40° | 50° | — | — |
| 1972 | 64° | 56° | 60° | 0.15" | — |
| 1971 | 55° | 38° | 46° | — | — |
55 years of data from MOFFETT FED AIRFIELD