Weather on December 17
Downey, CA
55 Years of Data
Avg High
70°F
Avg Low
48°F
Warmest
2023
71°F avg
Coldest
2008
44°F avg
About This Date
December 17th in Downey, CA typically brings pleasant winter weather, with average highs around 70°F and lows near 48°F. Over 55 years of records, the warmest December 17th was in 2023 (71°F average), while the coldest was 2008 (44°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 9% of December 17th dates historically, with the wettest December 17th recording 1.78" of rain. The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
Planning for December 17th in Downey, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 51° | 60° | — | — |
| 2024 | 74° | 52° | 63° | — | — |
| 2023warmest | 80° | 63° | 71° | — | — |
| 2022 | 64° | 50° | 57° | — | — |
| 2021 | 65° | 47° | 56° | — | — |
| 2020 | 64° | 50° | 57° | — | — |
| 2019 | 68° | 50° | 59° | — | — |
| 2018 | 65° | 52° | 58° | — | — |
| 2017 | 72° | 55° | 63° | — | — |
| 2016 | 59° | 45° | 52° | — | — |
| 2015 | 69° | 46° | 58° | — | — |
| 2014 | 65° | 49° | 57° | — | — |
| 2013 | 76° | 50° | 63° | — | — |
| 2012 | 63° | 50° | 56° | — | — |
| 2011 | 67° | 53° | 60° | — | — |
| 2010 | 54° | 48° | 51° | — | — |
| 2009 | 78° | 55° | 67° | — | — |
| 2008coldest | 48° | 40° | 44° | — | — |
| 2007 | 62° | 46° | 54° | — | — |
| 2006 | 59° | 40° | 49° | — | — |
| 2005 | 77° | 44° | 61° | — | — |
| 2004 | 76° | 58° | 67° | — | — |
| 2003 | 80° | 52° | 66° | — | — |
| 2002 | 58° | 46° | 52° | — | — |
| 2001 | 68° | 47° | 57° | — | — |
| 2000 | 83° | 48° | 65° | — | — |
| 1999 | 83° | 49° | 66° | — | — |
| 1998 | 85° | 50° | 67° | — | — |
| 1997 | 72° | 47° | 59° | — | — |
| 1996 | 79° | 47° | 63° | — | — |
| 1995 | 71° | 44° | 58° | — | — |
| 1994 | 78° | 48° | 63° | — | — |
| 1993 | 69° | 47° | 58° | — | — |
| 1992 | 65° | 45° | 55° | — | — |
| 1991 | 76° | 56° | 66° | — | — |
| 1990 | 78° | 40° | 59° | — | — |
| 1989 | 70° | 42° | 56° | — | — |
| 1988 | 64° | 49° | 56° | 0.05" | — |
| 1987 | 52° | 42° | 47° | 1.42" | — |
| 1986 | 77° | 50° | 64° | — | — |
| 1985 | 84° | 48° | 66° | — | — |
| 1984 | 58° | 46° | 52° | — | — |
| 1983 | 64° | 56° | 60° | 0.1" | — |
| 1982 | 70° | 40° | 55° | — | — |
| 1981 | 80° | 31° | 55° | — | — |
| 1980 | 78° | 50° | 64° | — | — |
| 1979 | 78° | 52° | 65° | — | — |
| 1978 | 59° | 52° | 55° | 1.78" | — |
| 1977 | 62° | 51° | 57° | 0.1" | — |
| 1976 | 75° | 45° | 60° | — | — |
| 1975 | 63° | 42° | 52° | — | — |
| 1974 | 69° | 45° | 57° | — | — |
| 1973 | 67° | 42° | 54° | — | — |
| 1972 | 66° | 46° | 56° | — | — |
| 1971 | 73° | 41° | 57° | — | — |
55 years of data from MONTEBELLO