Weather on December 18
Downey, CA
55 Years of Data
Avg High
70°F
Avg Low
48°F
Warmest
2024
76°F avg
Coldest
1984
49°F avg
About This Date
December 18th 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 18th was in 2024 (76°F average), while the coldest was 1984 (49°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 11% of December 18th dates historically, with the wettest December 18th recording 3.53" 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 18th in Downey, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 56° | 68° | — | — |
| 2024warmest | 85° | 68° | 76° | — | — |
| 2023 | 68° | 58° | 63° | — | — |
| 2022 | 67° | 49° | 58° | — | — |
| 2021 | 69° | 54° | 61° | — | — |
| 2020 | 70° | 49° | 59° | — | — |
| 2019 | 63° | 49° | 56° | — | — |
| 2018 | 66° | 53° | 60° | — | — |
| 2017 | 71° | 55° | 63° | — | — |
| 2016 | 67° | 40° | 53° | — | — |
| 2015 | 74° | 51° | 62° | — | — |
| 2014 | 65° | 49° | 57° | — | — |
| 2013 | 69° | 54° | 61° | — | — |
| 2012 | 59° | 43° | 51° | — | — |
| 2011 | 66° | 48° | 57° | — | — |
| 2010 | 58° | 52° | 55° | — | — |
| 2009 | 82° | 52° | 67° | — | — |
| 2008 | 59° | 39° | 49° | — | — |
| 2007 | 54° | 49° | 51° | — | — |
| 2006 | 63° | 43° | 53° | — | — |
| 2005 | 62° | 48° | 55° | — | — |
| 2004 | 84° | 45° | 64° | — | — |
| 2003 | 81° | 55° | 68° | — | — |
| 2002 | 62° | 45° | 53° | — | — |
| 2001 | 73° | 49° | 61° | — | — |
| 2000 | 82° | 55° | 69° | — | — |
| 1999 | 81° | 50° | 65° | — | — |
| 1998 | 87° | 48° | 68° | — | — |
| 1997 | 60° | 48° | 54° | 3.53" | — |
| 1996 | 74° | 43° | 58° | — | — |
| 1995 | 71° | 44° | 58° | — | — |
| 1994 | 77° | 44° | 61° | — | — |
| 1993 | 69° | 45° | 57° | — | — |
| 1992 | 64° | 46° | 55° | 0.25" | — |
| 1991 | 75° | 55° | 65° | — | — |
| 1990 | 66° | 42° | 54° | — | — |
| 1989 | 62° | 44° | 53° | — | — |
| 1988 | 60° | 46° | 53° | 1.52" | — |
| 1987 | 68° | 40° | 54° | — | — |
| 1986 | 71° | 50° | 61° | — | — |
| 1985 | 84° | 56° | 70° | — | — |
| 1984coldest | 56° | 42° | 49° | 1.8" | — |
| 1983 | 66° | 52° | 59° | — | — |
| 1982 | 72° | 44° | 58° | — | — |
| 1981 | 74° | 52° | 63° | — | — |
| 1980 | 77° | 52° | 64° | — | — |
| 1979 | 80° | 55° | 68° | — | — |
| 1978 | 56° | 51° | 53° | 0.97" | — |
| 1977 | 64° | 48° | 56° | 0.25" | — |
| 1976 | 70° | 47° | 58° | — | — |
| 1975 | 73° | 37° | 55° | — | — |
| 1974 | 73° | 43° | 58° | — | — |
| 1973 | 72° | 46° | 59° | — | — |
| 1972 | 70° | 44° | 57° | — | — |
| 1971 | 63° | 43° | 53° | — | — |
55 years of data from MONTEBELLO