Weather on May 30
Pomona, CA
55 Years of Data
Avg High
81°F
Avg Low
53°F
Warmest
2025
79°F avg
Coldest
1971
58°F avg
About This Date
May 30th in Pomona, CA typically brings warm spring weather, with average highs around 81°F and lows near 53°F — a 28°F daily swing. Over 53 years of records, the warmest May 30th was in 2025 (79°F average), while the coldest was 1971 (58°F) — a 21°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
Planning for May 30th in Pomona, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 97° | 61° | 79° | — | — |
| 2024 | 79° | 52° | 65° | — | — |
| 2023 | 64° | 54° | 59° | — | — |
| 2022 | 76° | 48° | 62° | — | — |
| 2021 | 77° | 53° | 65° | — | — |
| 2020 | 78° | 56° | 67° | — | — |
| 2019 | 80° | 51° | 66° | — | — |
| 2018 | 70° | 57° | 63° | — | — |
| 2017 | 77° | 51° | 64° | — | — |
| 2016 | 76° | 50° | 63° | — | — |
| 2015 | 87° | 57° | 72° | — | — |
| 2014 | 89° | 53° | 71° | — | — |
| 2013 | 85° | 54° | 69° | — | — |
| 2012 | 82° | 55° | 69° | — | — |
| 2011 | 82° | 48° | 65° | — | — |
| 2010 | 87° | 53° | 70° | — | — |
| 2009 | 94° | 59° | 76° | — | — |
| 2008 | 81° | 51° | 66° | — | — |
| 2007 | 81° | 54° | 67° | — | — |
| 2006 | 92° | 54° | 73° | — | — |
| 2005 | 81° | 58° | 69° | — | — |
| 2004 | 94° | 58° | 76° | — | — |
| 2003 | 84° | 60° | 72° | — | — |
| 2002 | 95° | 56° | 75° | — | — |
| 2001 | 86° | 56° | 71° | — | — |
| 2000 | 80° | 55° | 68° | — | — |
| 1999 | 71° | 48° | 60° | — | — |
| 1998 | 77° | 47° | 62° | — | — |
| 1995 | 88° | 49° | 68° | — | — |
| 1994 | 89° | 52° | 70° | — | — |
| 1993 | 85° | 50° | 67° | — | — |
| 1992 | 80° | 50° | 65° | — | — |
| 1991 | 60° | 55° | 58° | — | — |
| 1990 | 72° | 48° | 60° | — | — |
| 1989 | 75° | 50° | 63° | — | — |
| 1988 | 74° | 45° | 59° | — | — |
| 1987 | 83° | 46° | 64° | — | — |
| 1986 | 77° | 58° | 67° | — | — |
| 1985 | 87° | 53° | 70° | — | — |
| 1984 | 86° | 61° | 73° | — | — |
| 1983 | 80° | 55° | 68° | — | — |
| 1982 | 76° | 48° | 62° | — | — |
| 1981 | 79° | 62° | 70° | — | — |
| 1980 | 71° | 48° | 60° | — | — |
| 1979 | 72° | 52° | 62° | — | — |
| 1978 | 101° | 53° | 77° | — | — |
| 1977 | 85° | 51° | 68° | — | — |
| 1976 | 65° | 56° | 60° | — | — |
| 1975 | 83° | 54° | 68° | — | — |
| 1974 | 74° | 55° | 64° | — | — |
| 1973 | 87° | 57° | 72° | — | — |
| 1972 | 92° | 60° | 76° | — | — |
| 1971coldest | 62° | 54° | 58° | — | — |
53 years of data from POMONA/FAIRPLEX