Weather on August 9
Philadelphia, PA
55 Years of Data
Avg High
87°F
Avg Low
71°F
Warmest
2001
92°F avg
Coldest
1989
69°F avg
About This Date
August 9th in Philadelphia, PA typically brings warm summer weather, with average highs around 87°F and lows near 71°F. Over 55 years of records, the warmest August 9th was in 2001 (92°F average), while the coldest was 1989 (69°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 18% of August 9th dates historically, with the wettest August 9th recording 3.96" of rain. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for August 9th in Philadelphia, PA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 63° | 73° | — | — |
| 2024 | 83° | 71° | 77° | — | — |
| 2023 | 83° | 70° | 76° | — | — |
| 2022 | 96° | 81° | 88° | — | — |
| 2021 | 82° | 67° | 74° | — | — |
| 2020 | 88° | 72° | 80° | — | — |
| 2019 | 92° | 70° | 81° | 0.51" | — |
| 2018 | 94° | 75° | 84° | — | — |
| 2017 | 81° | 67° | 74° | — | — |
| 2016 | 84° | 72° | 78° | — | — |
| 2015 | 83° | 71° | 77° | — | — |
| 2014 | 85° | 66° | 75° | — | — |
| 2013 | 87° | 76° | 81° | — | — |
| 2012 | 90° | 75° | 82° | — | — |
| 2011 | 86° | 72° | 79° | 3.15" | — |
| 2010 | 91° | 75° | 83° | — | — |
| 2009 | 85° | 70° | 77° | 0.38" | — |
| 2008 | 78° | 62° | 70° | — | — |
| 2007 | 90° | 72° | 81° | 1.37" | — |
| 2006 | 86° | 72° | 79° | — | — |
| 2005 | 85° | 73° | 79° | 0.38" | — |
| 2004 | 91° | 69° | 80° | — | — |
| 2003 | 87° | 75° | 81° | 0.66" | — |
| 2002 | 90° | 65° | 77° | — | — |
| 2001warmest | 103° | 81° | 92° | — | — |
| 2000 | 92° | 77° | 84° | — | — |
| 1999 | 84° | 67° | 75° | — | — |
| 1998 | 92° | 74° | 83° | — | — |
| 1997 | 92° | 70° | 81° | 0.2" | — |
| 1996 | 81° | 69° | 75° | — | — |
| 1995 | 80° | 62° | 71° | — | — |
| 1994 | 84° | 64° | 74° | — | — |
| 1993 | 86° | 68° | 77° | — | — |
| 1992 | 87° | 71° | 79° | — | — |
| 1991 | 76° | 71° | 73° | — | — |
| 1990 | 81° | 69° | 75° | — | — |
| 1989coldest | 79° | 60° | 69° | — | — |
| 1988 | 94° | 75° | 84° | — | — |
| 1987 | 87° | 74° | 80° | — | — |
| 1986 | 88° | 74° | 81° | — | — |
| 1985 | 90° | 71° | 80° | — | — |
| 1984 | 88° | 75° | 81° | — | — |
| 1983 | 91° | 76° | 83° | — | — |
| 1982 | 85° | 73° | 79° | — | — |
| 1981 | 87° | 70° | 78° | — | — |
| 1980 | 92° | 80° | 86° | — | — |
| 1979 | 87° | 72° | 79° | — | — |
| 1978 | 86° | 74° | 80° | 0.23" | — |
| 1977 | 86° | 74° | 80° | — | — |
| 1976 | 75° | 67° | 71° | 3.96" | — |
| 1975 | 87° | 68° | 78° | — | — |
| 1974 | 82° | 68° | 75° | 0.05" | — |
| 1973 | 90° | 73° | 81° | — | — |
| 1972 | 87° | 70° | 78° | — | — |
| 1971 | 93° | 75° | 84° | — | — |
55 years of data from PHILADELPHIA WSFO