Weather on December 22
Pomona, CA
55 Years of Data
Avg High
66°F
Avg Low
42°F
Warmest
2025
64°F avg
Coldest
1990
35°F avg
About This Date
December 22nd in Pomona, CA typically brings mild winter weather, with average highs around 66°F and lows near 42°F. Over 52 years of records, the warmest December 22nd was in 2025 (64°F average), while the coldest was 1990 (35°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 10% of December 22nd dates historically, with the wettest December 22nd recording 4.39" of rain. The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for December 22nd in Pomona, CA? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 76° | 52° | 64° | — | — |
| 2024 | 66° | 49° | 57° | — | — |
| 2023 | 63° | 49° | 56° | — | — |
| 2022 | 67° | 46° | 56° | — | — |
| 2021 | 67° | 45° | 56° | — | — |
| 2020 | 70° | 46° | 58° | — | — |
| 2019 | 67° | 51° | 59° | — | — |
| 2018 | 70° | 46° | 58° | — | — |
| 2017 | 64° | 38° | 51° | — | — |
| 2016 | 56° | 48° | 52° | — | — |
| 2015 | 55° | 48° | 52° | — | — |
| 2014 | 77° | 46° | 62° | — | — |
| 2013 | 70° | 39° | 54° | — | — |
| 2012 | 61° | 38° | 49° | — | — |
| 2011 | 61° | 38° | 49° | — | — |
| 2010 | 57° | 49° | 53° | 4.39" | — |
| 2009 | 59° | 43° | 51° | — | — |
| 2008 | 52° | 44° | 48° | 0.13" | — |
| 2007 | 62° | 34° | 48° | — | — |
| 2006 | 62° | 41° | 52° | — | — |
| 2005 | 76° | 49° | 62° | — | — |
| 2004 | 62° | 42° | 52° | — | — |
| 2003 | 71° | 44° | 58° | — | — |
| 2002 | 60° | 40° | 50° | — | — |
| 2001 | 54° | 43° | 48° | — | — |
| 2000 | 71° | 42° | 57° | — | — |
| 1999 | 70° | 50° | 60° | — | — |
| 1998 | 52° | 31° | 41° | — | — |
| 1994 | 72° | 42° | 57° | — | — |
| 1993 | 74° | 32° | 53° | — | — |
| 1992 | 64° | 31° | 47° | — | — |
| 1991 | 69° | 41° | 55° | — | — |
| 1990coldest | 49° | 22° | 35° | — | — |
| 1989 | 75° | 41° | 58° | — | — |
| 1988 | 59° | 33° | 46° | — | — |
| 1987 | 63° | 43° | 53° | — | — |
| 1986 | 73° | 40° | 56° | — | — |
| 1985 | 81° | 45° | 63° | — | — |
| 1984 | 64° | 38° | 51° | — | — |
| 1983 | 60° | 43° | 51° | — | — |
| 1982 | 57° | 51° | 54° | 2.64" | — |
| 1981 | 68° | 33° | 51° | — | — |
| 1980 | 79° | 48° | 63° | — | — |
| 1979 | 64° | 38° | 51° | — | — |
| 1978 | 70° | 39° | 54° | — | — |
| 1977 | 64° | 48° | 56° | 0.28" | — |
| 1976 | 72° | 41° | 56° | — | — |
| 1975 | 67° | 37° | 52° | — | — |
| 1974 | 73° | 38° | 55° | — | — |
| 1973 | 66° | 44° | 55° | — | — |
| 1972 | 80° | 47° | 63° | — | — |
| 1971 | 59° | 40° | 49° | 1.5" | — |
52 years of data from POMONA/FAIRPLEX