Weather on December 28
Pomona, CA
55 Years of Data
Avg High
65°F
Avg Low
40°F
Warmest
2017
67°F avg
Coldest
2009
17°F avg
About This Date
December 28th in Pomona, CA typically brings mild winter weather, with average highs around 65°F and lows near 40°F — a 25°F daily swing. Over 52 years of records, the warmest December 28th was in 2017 (67°F average), while the coldest was 2009 (17°F) — a 50°F range across recorded history. Rain or other precipitation has occurred on about 12% of December 28th dates historically, with the wettest December 28th recording 4.95" of rain. The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.
Planning for December 28th in Pomona, CA? Great weather for outdoor activities.
Cooling Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 42° | 53° | — | — |
| 2024 | 65° | 44° | 54° | — | — |
| 2023 | 66° | 39° | 53° | — | — |
| 2022 | 58° | 47° | 52° | — | — |
| 2021 | 50° | 40° | 45° | — | — |
| 2020 | 49° | 38° | 43° | — | — |
| 2019 | 58° | 36° | 47° | — | — |
| 2018 | 57° | 40° | 48° | — | — |
| 2017warmest | 83° | 51° | 67° | — | — |
| 2016 | 77° | 46° | 62° | — | — |
| 2015 | 52° | 32° | 42° | — | — |
| 2014 | 61° | 35° | 48° | — | — |
| 2013 | 74° | 46° | 60° | — | — |
| 2012 | 61° | 33° | 47° | — | — |
| 2011 | 76° | 41° | 58° | — | — |
| 2010 | 65° | 41° | 53° | — | — |
| 2009coldest | 66° | -32° | 17° | — | — |
| 2008 | 64° | 34° | 49° | — | — |
| 2007 | 55° | 36° | 45° | — | — |
| 2006 | 62° | 37° | 50° | — | — |
| 2005 | 61° | 46° | 53° | — | — |
| 2004 | 57° | 50° | 54° | 4.95" | — |
| 2003 | 59° | 31° | 45° | — | — |
| 2002 | 57° | 43° | 50° | — | — |
| 2001 | 68° | 44° | 56° | — | — |
| 2000 | 76° | 43° | 59° | — | — |
| 1999 | 74° | 46° | 60° | — | — |
| 1998 | 75° | 49° | 62° | — | — |
| 1994 | 72° | 43° | 57° | — | — |
| 1993 | 75° | 40° | 57° | — | — |
| 1992 | 64° | 41° | 53° | — | — |
| 1991 | 60° | 41° | 51° | — | — |
| 1990 | 60° | 34° | 47° | — | — |
| 1989 | 67° | 50° | 58° | — | — |
| 1988 | 56° | 31° | 43° | 0.18" | — |
| 1987 | 60° | 31° | 45° | — | — |
| 1986 | 74° | 39° | 56° | — | — |
| 1985 | 72° | 42° | 57° | — | — |
| 1984 | 63° | 44° | 53° | 0.86" | — |
| 1983 | 68° | 51° | 60° | — | — |
| 1982 | 65° | 42° | 53° | — | — |
| 1981 | 65° | 40° | 52° | — | — |
| 1980 | 78° | 50° | 64° | — | — |
| 1979 | 68° | 35° | 52° | — | — |
| 1978 | 59° | 40° | 49° | — | — |
| 1977 | 65° | 52° | 58° | 1.85" | — |
| 1976 | 69° | 37° | 53° | — | — |
| 1975 | 68° | 45° | 56° | — | — |
| 1974 | 62° | 38° | 50° | 1.04" | — |
| 1973 | 56° | 48° | 52° | — | — |
| 1972 | 76° | 37° | 56° | — | — |
| 1971 | 44° | 37° | 41° | 2.54" | — |
52 years of data from POMONA/FAIRPLEX