Weather on June 30
Pomona, CA
55 Years of Data
Avg High
88°F
Avg Low
59°F
Warmest
2013
87°F avg
Coldest
1992
60°F avg
About This Date
June 30th in Pomona, CA typically brings warm summer weather, with average highs around 88°F and lows near 59°F — a 29°F daily swing. Over 51 years of records, the warmest June 30th was in 2013 (87°F average), while the coldest was 1992 (60°F) — a 27°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for June 30th in Pomona, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 61° | 76° | — | — |
| 2024 | 94° | 62° | 78° | — | — |
| 2023 | 90° | 58° | 74° | — | — |
| 2022 | 91° | 65° | 78° | — | — |
| 2021 | 89° | 61° | 75° | — | — |
| 2020 | 82° | 54° | 68° | — | — |
| 2019 | 89° | 62° | 76° | — | — |
| 2018 | 81° | 56° | 68° | — | — |
| 2017 | 84° | 54° | 69° | — | — |
| 2016 | 90° | 62° | 76° | — | — |
| 2015 | 95° | 70° | 82° | — | — |
| 2014 | 87° | 57° | 72° | — | — |
| 2013warmest | 102° | 71° | 87° | — | — |
| 2012 | 90° | 57° | 73° | — | — |
| 2011 | 90° | 57° | 73° | — | — |
| 2010 | 87° | 55° | 71° | — | — |
| 2009 | 88° | 62° | 75° | — | — |
| 2008 | 96° | 61° | 78° | — | — |
| 2007 | 94° | 64° | 79° | — | — |
| 2006 | 100° | 64° | 82° | — | — |
| 2005 | 90° | 58° | 74° | — | — |
| 2004 | 79° | 59° | 69° | — | — |
| 2003 | 94° | 59° | 76° | — | — |
| 2002 | 86° | 58° | 72° | — | — |
| 2001 | 93° | 62° | 78° | — | — |
| 2000 | 85° | 53° | 69° | — | — |
| 1999 | 87° | 57° | 72° | — | — |
| 1998 | 87° | 57° | 72° | — | — |
| 1993 | 84° | 60° | 72° | — | — |
| 1992coldest | 72° | 48° | 60° | — | — |
| 1991 | 89° | 54° | 71° | — | — |
| 1990 | 90° | 59° | 74° | — | — |
| 1989 | 83° | 51° | 67° | — | — |
| 1988 | 86° | 66° | 76° | — | — |
| 1987 | 76° | 53° | 64° | — | — |
| 1986 | 92° | 59° | 75° | — | — |
| 1985 | 100° | 61° | 80° | — | — |
| 1984 | 90° | 62° | 76° | — | — |
| 1983 | 73° | 58° | 65° | — | — |
| 1982 | 74° | 53° | 63° | — | — |
| 1981 | 90° | 56° | 73° | — | — |
| 1980 | 87° | 64° | 76° | — | — |
| 1979 | 98° | 58° | 78° | — | — |
| 1978 | 81° | 54° | 67° | — | — |
| 1977 | 89° | 59° | 74° | — | — |
| 1976 | 95° | 57° | 76° | — | — |
| 1975 | 85° | 58° | 71° | — | — |
| 1974 | 92° | 57° | 74° | — | — |
| 1973 | 85° | 58° | 71° | — | — |
| 1972 | 93° | 58° | 75° | — | — |
| 1971 | 82° | 53° | 68° | — | — |
51 years of data from POMONA/FAIRPLEX