Weather on December 30
Downey, CA
55 Years of Data
Avg High
66°F
Avg Low
48°F
Warmest
1980
71°F avg
Coldest
2010
45°F avg
About This Date
December 30th in Downey, CA typically brings mild winter weather, with average highs around 66°F and lows near 48°F. Over 55 years of records, the warmest December 30th was in 1980 (71°F average), while the coldest was 2010 (45°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 11% of December 30th dates historically, with the wettest December 30th recording 1.27" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for December 30th in Downey, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 61° | 65° | — | — |
| 2024 | 67° | 49° | 58° | — | — |
| 2023 | 58° | 51° | 54° | — | — |
| 2022 | 56° | 52° | 54° | — | — |
| 2021 | 52° | 48° | 50° | — | — |
| 2020 | 69° | 52° | 60° | — | — |
| 2019 | 62° | 48° | 55° | — | — |
| 2018 | 63° | 49° | 56° | — | — |
| 2017 | 76° | 56° | 66° | — | — |
| 2016 | 63° | 55° | 59° | 1.04" | — |
| 2015 | 63° | 42° | 52° | — | — |
| 2014 | 51° | 40° | 45° | — | — |
| 2013 | 73° | 42° | 58° | — | — |
| 2012 | 55° | 40° | 47° | — | — |
| 2011 | 77° | 55° | 66° | — | — |
| 2010coldest | 51° | 39° | 45° | — | — |
| 2009 | 65° | 45° | 55° | — | — |
| 2008 | 76° | 54° | 65° | — | — |
| 2007 | 61° | 45° | 53° | — | — |
| 2006 | 82° | 40° | 61° | — | — |
| 2005 | 66° | 50° | 58° | — | — |
| 2004 | 61° | 46° | 53° | — | — |
| 2003 | 68° | 46° | 57° | — | — |
| 2002 | 63° | 44° | 53° | — | — |
| 2001 | 65° | 50° | 57° | — | — |
| 2000 | 76° | 56° | 66° | — | — |
| 1999 | 79° | 44° | 61° | — | — |
| 1998 | 72° | 44° | 58° | — | — |
| 1997 | 81° | 56° | 68° | — | — |
| 1996 | 69° | 52° | 60° | — | — |
| 1995 | 71° | 68° | 70° | — | — |
| 1994 | 62° | 44° | 53° | — | — |
| 1993 | 72° | 49° | 60° | — | — |
| 1992 | 61° | 47° | 54° | — | — |
| 1991 | 58° | 50° | 54° | 1.27" | — |
| 1990 | 66° | 42° | 54° | — | — |
| 1989 | 74° | 42° | 58° | — | — |
| 1988 | 62° | 38° | 50° | — | — |
| 1987 | 56° | 38° | 47° | — | — |
| 1986 | 76° | 52° | 64° | — | — |
| 1985 | 73° | 58° | 65° | — | — |
| 1984 | 64° | 48° | 56° | — | — |
| 1983 | 76° | 54° | 65° | — | — |
| 1982 | 62° | 36° | 49° | — | — |
| 1981 | 63° | 48° | 55° | 1.14" | — |
| 1980warmest | 87° | 55° | 71° | — | — |
| 1979 | 70° | 47° | 58° | — | — |
| 1978 | 66° | 41° | 54° | — | — |
| 1977 | 66° | 54° | 60° | 0.03" | — |
| 1976 | 61° | 50° | 55° | 0.51" | — |
| 1975 | 66° | 45° | 55° | — | — |
| 1974 | 57° | 38° | 47° | 0.08" | — |
| 1973 | 64° | 46° | 55° | — | — |
| 1972 | 64° | 38° | 51° | — | — |
| 1971 | 64° | 36° | 50° | — | — |
55 years of data from MONTEBELLO