Weather on December 30
Pomona, CA
55 Years of Data
Avg High
64°F
Avg Low
42°F
Warmest
1980
68°F avg
Coldest
2012
42°F avg
About This Date
December 30th in Pomona, CA typically brings mild winter weather, with average highs around 64°F and lows near 42°F. Over 52 years of records, the warmest December 30th was in 1980 (68°F average), while the coldest was 2012 (42°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 10% of December 30th dates historically, with the wettest December 30th recording 4.24" of rain. The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.9°F cooler on this date compared to 20-30 years ago.
Planning for December 30th in Pomona, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 50° | 59° | — | — |
| 2024 | 64° | 38° | 51° | — | — |
| 2023 | 57° | 45° | 51° | — | — |
| 2022 | 55° | 49° | 52° | — | — |
| 2021 | 51° | 44° | 48° | — | — |
| 2020 | 65° | 41° | 53° | — | — |
| 2019 | 60° | 43° | 51° | — | — |
| 2018 | 61° | 40° | 50° | — | — |
| 2017 | 75° | 51° | 63° | — | — |
| 2016 | 60° | 52° | 56° | — | — |
| 2015 | 60° | 36° | 48° | — | — |
| 2014 | 50° | 37° | 44° | — | — |
| 2013 | 74° | 42° | 58° | — | — |
| 2012coldest | 50° | 34° | 42° | — | — |
| 2011 | 72° | 45° | 58° | — | — |
| 2010 | 53° | 36° | 44° | — | — |
| 2009 | 49° | 42° | 45° | — | — |
| 2008 | 73° | 43° | 58° | — | — |
| 2007 | 61° | 37° | 49° | — | — |
| 2006 | 64° | 37° | 51° | — | — |
| 2005 | 64° | 46° | 55° | — | — |
| 2004 | 59° | 44° | 52° | — | — |
| 2003 | 63° | 44° | 53° | — | — |
| 2002 | 61° | 37° | 49° | — | — |
| 2001 | 54° | 50° | 52° | — | — |
| 2000 | 76° | 47° | 61° | — | — |
| 1999 | 68° | 44° | 56° | — | — |
| 1998 | 79° | 49° | 64° | — | — |
| 1994 | 75° | 43° | 59° | — | — |
| 1993 | 74° | 32° | 53° | — | — |
| 1992 | 59° | 41° | 50° | 4.24" | — |
| 1991 | 65° | 43° | 54° | 2.44" | — |
| 1990 | 63° | 38° | 50° | — | — |
| 1989 | 71° | 35° | 53° | — | — |
| 1988 | 59° | 32° | 46° | — | — |
| 1987 | 54° | 33° | 43° | 0.28" | — |
| 1986 | 78° | 39° | 59° | — | — |
| 1985 | 72° | 54° | 63° | — | — |
| 1984 | 63° | 43° | 53° | — | — |
| 1983 | 76° | 43° | 59° | — | — |
| 1982 | 60° | 30° | 45° | — | — |
| 1981 | 59° | 40° | 49° | 1.22" | — |
| 1980warmest | 85° | 51° | 68° | — | — |
| 1979 | 70° | 41° | 55° | — | — |
| 1978 | 66° | 41° | 54° | — | — |
| 1977 | 64° | 54° | 59° | 0.25" | — |
| 1976 | 63° | 47° | 55° | — | — |
| 1975 | 74° | 40° | 57° | — | — |
| 1974 | 60° | 34° | 47° | — | — |
| 1973 | 65° | 43° | 54° | — | — |
| 1972 | 65° | 35° | 50° | — | — |
| 1971 | 53° | 34° | 43° | — | — |
52 years of data from POMONA/FAIRPLEX