Weather on December 4
Sunnyvale, CA
55 Years of Data
Avg High
61°F
Avg Low
44°F
Warmest
2014
62°F avg
Coldest
2004
43°F avg
About This Date
December 4th in Sunnyvale, CA typically brings mild winter weather, with average highs around 61°F and lows near 44°F. Over 55 years of records, the warmest December 4th was in 2014 (62°F average), while the coldest was 2004 (43°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 24% of December 4th dates historically, with the wettest December 4th recording 1.7" of rain. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
Planning for December 4th in Sunnyvale, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 55° | 39° | 47° | — | — |
| 2024 | 70° | 44° | 57° | — | — |
| 2023 | 67° | 50° | 58° | — | — |
| 2022 | 59° | 48° | 54° | — | — |
| 2021 | 61° | 51° | 56° | — | — |
| 2020 | 69° | 38° | 53° | — | — |
| 2019 | 59° | 53° | 56° | 1.17" | — |
| 2018 | 53° | 49° | 51° | 0.25" | — |
| 2017 | 63° | 40° | 51° | — | — |
| 2016 | 59° | 40° | 49° | — | — |
| 2015 | 61° | 42° | 51° | — | — |
| 2014warmest | 68° | 56° | 62° | 0.03" | — |
| 2013 | 52° | 36° | 44° | — | — |
| 2012 | 65° | 50° | 57° | — | — |
| 2011 | 67° | 40° | 53° | — | — |
| 2010 | 66° | 49° | 57° | — | — |
| 2009 | 56° | 40° | 48° | — | — |
| 2008 | 60° | 44° | 52° | — | — |
| 2007 | 61° | 54° | 57° | 0.56" | — |
| 2006 | 63° | 37° | 50° | — | — |
| 2005 | 59° | 38° | 48° | — | — |
| 2004coldest | 55° | 31° | 43° | — | — |
| 2003 | 71° | 45° | 58° | 0.1" | — |
| 2002 | 63° | 41° | 52° | 0.03" | — |
| 2001 | 57° | 39° | 48° | — | — |
| 2000 | 63° | 41° | 52° | — | — |
| 1999 | 59° | 38° | 48° | — | — |
| 1998 | 50° | 37° | 44° | — | — |
| 1997 | 63° | 52° | 57° | — | — |
| 1996 | 64° | 42° | 53° | — | — |
| 1995 | 68° | 42° | 55° | 0.28" | — |
| 1994 | 57° | 46° | 52° | 0.48" | — |
| 1993 | 62° | 46° | 54° | — | — |
| 1992 | 62° | 41° | 52° | — | — |
| 1991 | 59° | 40° | 49° | — | — |
| 1990 | 59° | 36° | 47° | — | — |
| 1989 | 64° | 43° | 53° | — | — |
| 1988 | 65° | 44° | 54° | — | — |
| 1987 | 59° | 54° | 56° | 1.7" | — |
| 1986 | 65° | 48° | 56° | — | — |
| 1985 | 62° | 51° | 57° | 0.25" | — |
| 1984 | 55° | 40° | 47° | — | — |
| 1983 | 55° | 44° | 50° | — | — |
| 1982 | 61° | 45° | 53° | — | — |
| 1981 | 57° | 46° | 52° | — | — |
| 1980 | 58° | 45° | 51° | 0.2" | — |
| 1979 | 61° | 44° | 52° | — | — |
| 1978 | 61° | 39° | 50° | — | — |
| 1977 | 65° | 48° | 56° | — | — |
| 1976 | 56° | 38° | 47° | — | — |
| 1975 | 68° | 44° | 56° | — | — |
| 1974 | 60° | 43° | 51° | 0.05" | — |
| 1973 | 55° | 40° | 47° | — | — |
| 1972 | 54° | 42° | 48° | 0.2" | — |
| 1971 | 56° | 42° | 49° | — | — |
55 years of data from MOFFETT FED AIRFIELD