Weather on May 23
Pomona, CA
55 Years of Data
Avg High
75°F
Avg Low
52°F
Warmest
2001
76°F avg
Coldest
2019
51°F avg
About This Date
May 23rd in Pomona, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 52°F. Over 53 years of records, the warmest May 23rd was in 2001 (76°F average), while the coldest was 2019 (51°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 23rd dates historically. The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.5°F cooler on this date compared to 20-30 years ago.
Planning for May 23rd 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 | 81° | 52° | 66° | — | — |
| 2024 | 64° | 50° | 57° | — | — |
| 2023 | 67° | 56° | 61° | — | — |
| 2022 | 74° | 49° | 61° | — | — |
| 2021 | 74° | 47° | 60° | — | — |
| 2020 | 73° | 54° | 63° | — | — |
| 2019coldest | 54° | 49° | 51° | — | — |
| 2018 | 71° | 49° | 60° | — | — |
| 2017 | 90° | 61° | 75° | — | — |
| 2016 | 69° | 47° | 58° | — | — |
| 2015 | 64° | 52° | 58° | — | — |
| 2014 | 73° | 52° | 62° | — | — |
| 2013 | 71° | 53° | 62° | — | — |
| 2012 | 79° | 60° | 69° | — | — |
| 2011 | 69° | 55° | 62° | — | — |
| 2010 | 62° | 43° | 52° | — | — |
| 2009 | 82° | 56° | 69° | — | — |
| 2008 | 56° | 52° | 54° | 0.33" | — |
| 2007 | 80° | 57° | 69° | — | — |
| 2006 | 81° | 50° | 65° | — | — |
| 2005 | 86° | 61° | 73° | — | — |
| 2004 | 70° | 59° | 64° | — | — |
| 2003 | 83° | 56° | 69° | — | — |
| 2002 | 75° | 45° | 60° | — | — |
| 2001warmest | 93° | 59° | 76° | — | — |
| 2000 | 72° | 55° | 63° | — | — |
| 1999 | 69° | 50° | 60° | — | — |
| 1998 | 71° | 51° | 61° | — | — |
| 1995 | 70° | 54° | 62° | — | — |
| 1994 | 80° | 54° | 67° | — | — |
| 1993 | 69° | 59° | 64° | — | — |
| 1992 | 75° | 51° | 63° | — | — |
| 1991 | 77° | 50° | 64° | — | — |
| 1990 | 79° | 50° | 64° | — | — |
| 1989 | 80° | 45° | 62° | — | — |
| 1988 | 82° | 45° | 63° | — | — |
| 1987 | 76° | 50° | 63° | — | — |
| 1986 | 73° | 48° | 61° | — | — |
| 1985 | 87° | 53° | 70° | — | — |
| 1984 | 85° | 60° | 72° | — | — |
| 1983 | 85° | 55° | 70° | — | — |
| 1982 | 79° | 58° | 68° | — | — |
| 1981 | 79° | 53° | 66° | — | — |
| 1980 | 66° | 54° | 60° | 0.1" | — |
| 1979 | 86° | 51° | 69° | — | — |
| 1978 | 76° | 55° | 65° | — | — |
| 1977 | 73° | 55° | 64° | — | — |
| 1976 | 77° | 47° | 62° | — | — |
| 1975 | 71° | 46° | 59° | — | — |
| 1974 | 85° | 50° | 67° | — | — |
| 1973 | 76° | 48° | 62° | — | — |
| 1972 | 75° | 49° | 62° | — | — |
| 1971 | 67° | 45° | 56° | — | — |
53 years of data from POMONA/FAIRPLEX