Weather on December 27
Pomona, CA
55 Years of Data
Avg High
65°F
Avg Low
40°F
Warmest
2017
63°F avg
Coldest
1988
42°F avg
About This Date
December 27th 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 27th was in 2017 (63°F average), while the coldest was 1988 (42°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 10% of December 27th dates historically, with the wettest December 27th recording 2.21" of rain. The last decade has been 2.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.4°F cooler on this date compared to 20-30 years ago.
Planning for December 27th in Pomona, CA? Great weather for outdoor activities.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 41° | 50° | — | — |
| 2024 | 58° | 44° | 51° | — | — |
| 2023 | 66° | 46° | 56° | — | — |
| 2022 | 63° | 50° | 56° | — | — |
| 2021 | 48° | 37° | 43° | — | — |
| 2020 | 62° | 46° | 54° | — | — |
| 2019 | 57° | 37° | 47° | — | — |
| 2018 | 59° | 42° | 51° | — | — |
| 2017warmest | 77° | 48° | 63° | — | — |
| 2016 | 70° | 37° | 53° | — | — |
| 2015 | 57° | 33° | 45° | — | — |
| 2014 | 60° | 33° | 47° | — | — |
| 2013 | 79° | 46° | 62° | — | — |
| 2012 | 59° | 36° | 47° | — | — |
| 2011 | 70° | 39° | 54° | — | — |
| 2010 | 63° | 39° | 51° | — | — |
| 2009 | 60° | 36° | 48° | — | — |
| 2008 | 55° | 32° | 44° | — | — |
| 2007 | 61° | 33° | 47° | — | — |
| 2006 | 57° | 41° | 49° | 0.33" | — |
| 2005 | 66° | 49° | 57° | — | — |
| 2004 | 61° | 42° | 51° | — | — |
| 2003 | 57° | 33° | 45° | — | — |
| 2002 | 67° | 48° | 57° | — | — |
| 2001 | 69° | 37° | 53° | — | — |
| 2000 | 72° | 42° | 57° | — | — |
| 1999 | 71° | 46° | 59° | — | — |
| 1998 | 73° | 45° | 59° | — | — |
| 1994 | 73° | 40° | 56° | — | — |
| 1993 | 71° | 42° | 57° | — | — |
| 1992 | 73° | 37° | 55° | — | — |
| 1991 | 71° | 37° | 54° | — | — |
| 1990 | 65° | 34° | 49° | — | — |
| 1989 | 76° | 49° | 62° | — | — |
| 1988coldest | 56° | 29° | 42° | — | — |
| 1987 | 58° | 32° | 45° | — | — |
| 1986 | 70° | 37° | 53° | — | — |
| 1985 | 72° | 39° | 55° | — | — |
| 1984 | 58° | 47° | 52° | 1.42" | — |
| 1983 | 61° | 53° | 57° | 0.18" | — |
| 1982 | 63° | 38° | 50° | — | — |
| 1981 | 64° | 41° | 53° | — | — |
| 1980 | 76° | 45° | 60° | — | — |
| 1979 | 63° | 37° | 50° | — | — |
| 1978 | 60° | 36° | 48° | — | — |
| 1977 | 58° | 56° | 57° | 2.21" | — |
| 1976 | 80° | 38° | 59° | — | — |
| 1975 | 75° | 44° | 60° | — | — |
| 1974 | 60° | 36° | 48° | — | — |
| 1973 | 65° | 40° | 52° | — | — |
| 1972 | 78° | 36° | 57° | — | — |
| 1971 | 54° | 39° | 46° | 1.22" | — |
52 years of data from POMONA/FAIRPLEX