Weather on May 15
Pomona, CA
55 Years of Data
Avg High
77°F
Avg Low
53°F
Warmest
2014
84°F avg
Coldest
2015
53°F avg
About This Date
May 15th in Pomona, CA typically brings pleasant spring weather, with average highs around 77°F and lows near 53°F. Over 52 years of records, the warmest May 15th was in 2014 (84°F average), while the coldest was 2015 (53°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 15th dates historically. The last decade has been 4.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.4°F cooler on this date compared to 20-30 years ago.
Planning for May 15th in Pomona, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 48° | 63° | — | — |
| 2024 | 64° | 53° | 59° | — | — |
| 2023 | 79° | 51° | 65° | — | — |
| 2022 | 85° | 55° | 70° | — | — |
| 2021 | 69° | 55° | 62° | — | — |
| 2020 | 78° | 52° | 65° | — | — |
| 2019 | 69° | 54° | 61° | — | — |
| 2018 | 72° | 48° | 60° | — | — |
| 2017 | 57° | 49° | 53° | — | — |
| 2016 | 62° | 55° | 59° | — | — |
| 2015coldest | 61° | 45° | 53° | — | — |
| 2014warmest | 103° | 66° | 84° | — | — |
| 2013 | 77° | 50° | 64° | — | — |
| 2012 | 82° | 50° | 66° | — | — |
| 2011 | 66° | 47° | 56° | 0.15" | — |
| 2010 | 82° | 47° | 64° | — | — |
| 2009 | 94° | 57° | 75° | — | — |
| 2008 | 94° | 59° | 76° | — | — |
| 2007 | 74° | 55° | 64° | — | — |
| 2006 | 83° | 59° | 71° | — | — |
| 2005 | 90° | 58° | 74° | — | — |
| 2004 | 88° | 59° | 73° | — | — |
| 2003 | 76° | 51° | 63° | — | — |
| 2002 | 83° | 56° | 69° | — | — |
| 2001 | 78° | 56° | 67° | — | — |
| 2000 | 73° | 48° | 61° | — | — |
| 1999 | 65° | 48° | 56° | — | — |
| 1995 | 70° | 44° | 57° | — | — |
| 1994 | 67° | 59° | 63° | — | — |
| 1993 | 89° | 58° | 73° | — | — |
| 1992 | 73° | 45° | 59° | — | — |
| 1991 | 85° | 49° | 67° | — | — |
| 1990 | 69° | 67° | 68° | — | — |
| 1989 | 71° | 51° | 61° | — | — |
| 1988 | 82° | 53° | 68° | — | — |
| 1987 | 75° | 57° | 66° | — | — |
| 1986 | 70° | 55° | 62° | — | — |
| 1985 | 80° | 51° | 66° | — | — |
| 1984 | 71° | 47° | 59° | — | — |
| 1983 | 78° | 44° | 61° | — | — |
| 1982 | 78° | 49° | 63° | — | — |
| 1981 | 69° | 56° | 62° | — | — |
| 1980 | 65° | 47° | 56° | — | — |
| 1979 | 91° | 53° | 72° | — | — |
| 1978 | 87° | 58° | 72° | — | — |
| 1977 | 62° | 53° | 58° | — | — |
| 1976 | 88° | 55° | 71° | — | — |
| 1975 | 75° | 51° | 63° | — | — |
| 1974 | 63° | 53° | 58° | — | — |
| 1973 | 70° | 52° | 61° | — | — |
| 1972 | 96° | 50° | 73° | — | — |
| 1971 | 74° | 54° | 64° | — | — |
52 years of data from POMONA/FAIRPLEX