Weather on August 15
Pomona, CA
55 Years of Data
Avg High
90°F
Avg Low
62°F
Warmest
2020
90°F avg
Coldest
2006
66°F avg
About This Date
August 15th in Pomona, CA typically brings hot summer weather, with average highs around 90°F and lows near 62°F — a 28°F daily swing. Over 51 years of records, the warmest August 15th was in 2020 (90°F average), while the coldest was 2006 (66°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 15th dates historically, with the wettest August 15th recording 0.89" of rain. The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.
Planning for August 15th in Pomona, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 57° | 70° | — | — |
| 2024 | 94° | 66° | 80° | — | — |
| 2023 | 97° | 67° | 82° | — | — |
| 2022 | 95° | 69° | 82° | — | — |
| 2021 | 96° | 67° | 81° | — | — |
| 2020warmest | 105° | 75° | 90° | — | — |
| 2019 | 96° | 65° | 80° | — | — |
| 2018 | 89° | 62° | 76° | — | — |
| 2017 | 77° | 57° | 67° | — | — |
| 2016 | 101° | 70° | 85° | — | — |
| 2015 | 103° | 71° | 87° | — | — |
| 2014 | 95° | 64° | 80° | — | — |
| 2013 | 96° | 63° | 79° | — | — |
| 2012 | 93° | 66° | 80° | — | — |
| 2011 | 92° | 60° | 76° | — | — |
| 2010 | 91° | 56° | 73° | — | — |
| 2009 | 88° | 62° | 75° | — | — |
| 2008 | 91° | 66° | 79° | — | — |
| 2007 | 99° | 67° | 83° | — | — |
| 2006coldest | 83° | 50° | 66° | — | — |
| 2005 | 82° | 64° | 73° | — | — |
| 2004 | 90° | 64° | 77° | — | — |
| 2003 | 100° | 69° | 85° | — | — |
| 2002 | 89° | 66° | 78° | — | — |
| 2001 | 97° | 65° | 81° | — | — |
| 2000 | 95° | 68° | 82° | — | — |
| 1999 | 89° | 57° | 73° | — | — |
| 1998 | 88° | 63° | 75° | — | — |
| 1993 | 82° | 55° | 69° | — | — |
| 1992 | 90° | 62° | 76° | — | — |
| 1991 | 85° | 65° | 75° | — | — |
| 1990 | 76° | 66° | 71° | — | — |
| 1989 | 87° | 59° | 73° | — | — |
| 1988 | 87° | 53° | 70° | — | — |
| 1987 | 82° | 58° | 70° | — | — |
| 1986 | 90° | 52° | 71° | — | — |
| 1985 | 88° | 54° | 71° | — | — |
| 1984 | 91° | 68° | 80° | 0.89" | — |
| 1983 | 94° | 72° | 83° | — | — |
| 1982 | 84° | 50° | 67° | — | — |
| 1981 | 93° | 62° | 78° | — | — |
| 1980 | 80° | 64° | 72° | — | — |
| 1979 | 84° | 55° | 70° | — | — |
| 1978 | 86° | 56° | 71° | — | — |
| 1977 | 95° | 56° | 75° | — | — |
| 1976 | 78° | 58° | 68° | — | — |
| 1975 | 81° | 53° | 67° | — | — |
| 1974 | 84° | 59° | 72° | — | — |
| 1973 | 89° | 62° | 76° | — | — |
| 1972 | 82° | 58° | 70° | — | — |
| 1971 | 87° | 63° | 75° | — | — |
51 years of data from POMONA/FAIRPLEX