Weather on December 20
Berkeley, CA
55 Years of Data
Avg High
57°F
Avg Low
43°F
Warmest
1999
62°F avg
Coldest
1990
38°F avg
About This Date
December 20th in Berkeley, CA typically brings cool winter weather, with average highs around 57°F and lows near 43°F. Over 55 years of records, the warmest December 20th was in 1999 (62°F average), while the coldest was 1990 (38°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 27% of December 20th dates historically, with the wettest December 20th recording 2.9" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in Berkeley, CA? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 62° | 58° | 60° | 0.3" | — |
| 2024 | 58° | 43° | 50° | — | — |
| 2023 | 59° | 52° | 55° | — | — |
| 2022 | 55° | 42° | 49° | — | — |
| 2021 | 53° | 45° | 49° | — | — |
| 2020 | 62° | 43° | 52° | — | — |
| 2019 | 60° | 45° | 52° | — | — |
| 2018 | 64° | 45° | 54° | — | — |
| 2017 | 59° | 41° | 50° | — | — |
| 2016 | 56° | 39° | 47° | — | — |
| 2015 | 57° | 38° | 47° | 1.6" | — |
| 2014 | 57° | 52° | 54° | 0.05" | — |
| 2013 | 61° | 38° | 49° | — | — |
| 2012 | 54° | 39° | 46° | — | — |
| 2011 | 59° | 42° | 51° | — | — |
| 2010 | 54° | 45° | 49° | 0.13" | — |
| 2009 | 60° | 44° | 52° | 0.1" | — |
| 2008 | 56° | 35° | 45° | — | — |
| 2007 | 57° | 43° | 50° | 2.74" | — |
| 2006 | 54° | 35° | 44° | — | — |
| 2005 | 60° | 50° | 55° | 0.38" | — |
| 2004 | 62° | 39° | 51° | — | — |
| 2003 | 55° | 45° | 50° | 0.97" | — |
| 2002 | 50° | 37° | 44° | 1.6" | — |
| 2001 | 56° | 45° | 50° | 1.7" | — |
| 2000 | 61° | 46° | 53° | — | — |
| 1999warmest | 73° | 52° | 62° | — | — |
| 1998 | 48° | 36° | 42° | — | — |
| 1997 | 62° | 41° | 52° | — | — |
| 1996 | 50° | 39° | 45° | 0.15" | — |
| 1995 | 57° | 46° | 52° | — | — |
| 1994 | 53° | 43° | 48° | — | — |
| 1993 | 50° | 39° | 45° | — | — |
| 1992 | 56° | 48° | 52° | — | — |
| 1991 | 58° | 41° | 49° | — | — |
| 1990coldest | 43° | 34° | 38° | — | — |
| 1989 | 55° | 39° | 47° | — | — |
| 1988 | 49° | 45° | 47° | 2.9" | — |
| 1987 | 56° | 41° | 48° | — | — |
| 1986 | 56° | 43° | 49° | — | — |
| 1985 | 58° | 37° | 47° | — | — |
| 1984 | 53° | 40° | 46° | — | — |
| 1983 | 52° | 40° | 46° | — | — |
| 1982 | 60° | 48° | 54° | 0.94" | — |
| 1981 | 59° | 54° | 56° | 1.19" | — |
| 1980 | 64° | 48° | 56° | — | — |
| 1979 | 55° | 48° | 52° | 0.15" | — |
| 1978 | 52° | 38° | 45° | — | — |
| 1977 | 54° | 45° | 49° | — | — |
| 1976 | 61° | 43° | 52° | — | — |
| 1975 | 52° | 41° | 46° | — | — |
| 1974 | 56° | 41° | 48° | — | — |
| 1973 | 60° | 46° | 53° | — | — |
| 1972 | 59° | 53° | 56° | — | — |
| 1971 | 49° | 41° | 45° | — | — |
55 years of data from BERKELEY