Weather on December 1
Downey, CA
55 Years of Data
Avg High
72°F
Avg Low
49°F
Warmest
2020
71°F avg
Coldest
2007
51°F avg
About This Date
December 1st in Downey, CA typically brings pleasant winter weather, with average highs around 72°F and lows near 49°F. Over 55 years of records, the warmest December 1st was in 2020 (71°F average), while the coldest was 2007 (51°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 7% of December 1st dates historically, with the wettest December 1st recording 0.56" of rain. The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.6°F warmer on this date compared to 20-30 years ago.
Planning for December 1st in Downey, CA? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 51° | 62° | — | — |
| 2024 | 76° | 59° | 67° | — | — |
| 2023 | 67° | 51° | 59° | — | — |
| 2022 | 57° | 50° | 54° | — | — |
| 2021 | 79° | 50° | 64° | — | — |
| 2020warmest | 81° | 61° | 71° | — | — |
| 2019 | 61° | 49° | 55° | — | — |
| 2018 | 62° | 50° | 56° | — | — |
| 2017 | 75° | 56° | 65° | — | — |
| 2016 | 66° | 48° | 57° | — | — |
| 2015 | 73° | 51° | 62° | — | — |
| 2014 | 67° | 56° | 61° | — | — |
| 2013 | 80° | 61° | 70° | — | — |
| 2012 | 66° | 57° | 62° | — | — |
| 2011 | 67° | 52° | 59° | — | — |
| 2010 | 79° | 50° | 64° | — | — |
| 2009 | 78° | 48° | 63° | — | — |
| 2008 | 82° | 53° | 68° | — | — |
| 2007coldest | 56° | 46° | 51° | — | — |
| 2006 | 76° | 50° | 63° | — | — |
| 2005 | 68° | 53° | 61° | — | — |
| 2004 | 67° | 42° | 54° | — | — |
| 2003 | 68° | 51° | 60° | — | — |
| 2002 | 74° | 48° | 61° | — | — |
| 2001 | 69° | 46° | 58° | — | — |
| 2000 | 65° | 49° | 57° | — | — |
| 1999 | 74° | 51° | 62° | — | — |
| 1998 | 63° | 49° | 56° | 0.56" | — |
| 1997 | 69° | 48° | 59° | — | — |
| 1996 | 68° | 44° | 56° | — | — |
| 1995 | 76° | 50° | 63° | — | — |
| 1994 | 82° | 50° | 66° | — | — |
| 1993 | 75° | 50° | 63° | — | — |
| 1992 | 76° | 44° | 60° | — | — |
| 1991 | 68° | 38° | 53° | — | — |
| 1990 | 76° | 40° | 58° | — | — |
| 1989 | 80° | 48° | 64° | — | — |
| 1988 | 84° | 50° | 67° | — | — |
| 1987 | 66° | 46° | 56° | — | — |
| 1986 | 80° | 52° | 66° | — | — |
| 1985 | 64° | 46° | 55° | — | — |
| 1984 | 70° | 58° | 64° | — | — |
| 1983 | 66° | 58° | 62° | 0.25" | — |
| 1982 | 64° | 44° | 54° | — | — |
| 1981 | 73° | 47° | 60° | — | — |
| 1980 | 71° | 50° | 61° | — | — |
| 1979 | 81° | 48° | 64° | — | — |
| 1978 | 61° | 50° | 55° | 0.03" | — |
| 1977 | 85° | 56° | 70° | — | — |
| 1976 | 85° | 43° | 64° | — | — |
| 1975 | 78° | 44° | 61° | — | — |
| 1974 | 67° | 47° | 57° | — | — |
| 1973 | 59° | 47° | 53° | 0.48" | — |
| 1972 | 80° | 46° | 63° | — | — |
| 1971 | 72° | 40° | 56° | — | — |
55 years of data from MONTEBELLO