Weather on May 1
Pomona, CA
55 Years of Data
Avg High
75°F
Avg Low
51°F
Warmest
2014
78°F avg
Coldest
2018
50°F avg
About This Date
May 1st in Pomona, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 51°F. Over 52 years of records, the warmest May 1st was in 2014 (78°F average), while the coldest was 2018 (50°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 1st dates historically. The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
Planning for May 1st in Pomona, CA? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 51° | 61° | — | — |
| 2024 | 73° | 52° | 62° | — | — |
| 2023 | 64° | 49° | 56° | — | — |
| 2022 | 73° | 50° | 62° | — | — |
| 2021 | 79° | 54° | 66° | — | — |
| 2020 | 78° | 53° | 66° | — | — |
| 2019 | 70° | 48° | 59° | — | — |
| 2018coldest | 52° | 48° | 50° | — | — |
| 2017 | 87° | 55° | 71° | — | — |
| 2016 | 73° | 47° | 60° | — | — |
| 2015 | 90° | 59° | 74° | — | — |
| 2014warmest | 93° | 63° | 78° | — | — |
| 2013 | 82° | 53° | 68° | — | — |
| 2012 | 62° | 57° | 60° | — | — |
| 2011 | 84° | 49° | 66° | — | — |
| 2010 | 72° | 43° | 57° | — | — |
| 2009 | 79° | 53° | 66° | — | — |
| 2008 | 76° | 48° | 62° | — | — |
| 2007 | 76° | 57° | 66° | — | — |
| 2006 | 80° | 52° | 66° | — | — |
| 2005 | 74° | 52° | 63° | — | — |
| 2004 | 86° | 52° | 69° | — | — |
| 2003 | 71° | 47° | 59° | — | — |
| 2002 | 65° | 50° | 57° | — | — |
| 2001 | 76° | 53° | 64° | — | — |
| 2000 | 86° | 57° | 72° | — | — |
| 1999 | 66° | 40° | 53° | — | — |
| 1995 | 77° | 52° | 64° | — | — |
| 1994 | 73° | 53° | 63° | — | — |
| 1993 | 75° | 60° | 68° | — | — |
| 1992 | 77° | 43° | 60° | — | — |
| 1991 | 67° | 56° | 61° | — | — |
| 1990 | 77° | 45° | 61° | — | — |
| 1989 | 81° | 48° | 64° | — | — |
| 1988 | 79° | 50° | 64° | — | — |
| 1987 | 78° | 48° | 63° | — | — |
| 1986 | 88° | 66° | 77° | — | — |
| 1985 | 83° | 46° | 64° | 0.3" | — |
| 1984 | 71° | 43° | 57° | — | — |
| 1983 | 64° | 46° | 55° | 0.18" | — |
| 1982 | 75° | 54° | 64° | — | — |
| 1981 | 77° | 54° | 65° | — | — |
| 1980 | 67° | 52° | 59° | — | — |
| 1979 | 63° | 52° | 57° | — | — |
| 1978 | 61° | 49° | 55° | — | — |
| 1977 | 76° | 53° | 64° | — | — |
| 1976 | 89° | 51° | 70° | — | — |
| 1975 | 71° | 49° | 60° | — | — |
| 1974 | 88° | 51° | 69° | — | — |
| 1973 | 58° | 48° | 53° | — | — |
| 1972 | 80° | 46° | 63° | — | — |
| 1971 | 76° | 48° | 62° | — | — |
52 years of data from POMONA/FAIRPLEX