Weather on August 17
Philadelphia, PA
55 Years of Data
Avg High
87°F
Avg Low
70°F
Warmest
2002
89°F avg
Coldest
1972
66°F avg
About This Date
August 17th in Philadelphia, PA typically brings warm summer weather, with average highs around 87°F and lows near 70°F. Over 55 years of records, the warmest August 17th was in 2002 (89°F average), while the coldest was 1972 (66°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 16% of August 17th dates historically, with the wettest August 17th recording 2.64" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 17th in Philadelphia, PA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 92° | 75° | 83° | — | — |
| 2024 | 92° | 72° | 82° | — | — |
| 2023 | 88° | 72° | 80° | — | — |
| 2022 | 84° | 70° | 77° | — | — |
| 2021 | 83° | 73° | 78° | — | — |
| 2020 | 74° | 64° | 69° | — | — |
| 2019 | 89° | 72° | 80° | — | — |
| 2018 | 93° | 78° | 86° | — | — |
| 2017 | 90° | 70° | 80° | — | — |
| 2016 | 95° | 77° | 86° | 0.53" | — |
| 2015 | 94° | 74° | 84° | — | — |
| 2014 | 82° | 66° | 74° | — | — |
| 2013 | 80° | 63° | 71° | — | — |
| 2012 | 87° | 69° | 78° | — | — |
| 2011 | 89° | 67° | 78° | 2.64" | — |
| 2010 | 92° | 76° | 84° | — | — |
| 2009 | 94° | 75° | 84° | — | — |
| 2008 | 86° | 71° | 79° | — | — |
| 2007 | 87° | 72° | 79° | 0.81" | — |
| 2006 | 87° | 71° | 79° | — | — |
| 2005 | 90° | 68° | 79° | — | — |
| 2004 | 86° | 67° | 76° | — | — |
| 2003 | 90° | 73° | 81° | — | — |
| 2002warmest | 98° | 80° | 89° | — | — |
| 2001 | 88° | 73° | 80° | — | — |
| 2000 | 79° | 64° | 71° | — | — |
| 1999 | 94° | 73° | 83° | — | — |
| 1998 | 89° | 74° | 81° | 1.93" | — |
| 1997 | 96° | 74° | 85° | 1.5" | — |
| 1996 | 85° | 66° | 75° | 0.79" | — |
| 1995 | 91° | 71° | 81° | — | — |
| 1994 | 80° | 62° | 71° | — | — |
| 1993 | 81° | 71° | 76° | 0.53" | — |
| 1992 | 74° | 65° | 69° | — | — |
| 1991 | 87° | 73° | 80° | — | — |
| 1990 | 89° | 73° | 81° | — | — |
| 1989 | 85° | 73° | 79° | — | — |
| 1988 | 91° | 71° | 81° | — | — |
| 1987 | 94° | 76° | 85° | — | — |
| 1986 | 90° | 72° | 81° | — | — |
| 1985 | 86° | 68° | 77° | — | — |
| 1984 | 86° | 71° | 79° | — | — |
| 1983 | 87° | 69° | 78° | — | — |
| 1982 | 88° | 67° | 77° | — | — |
| 1981 | 78° | 60° | 69° | — | — |
| 1980 | 85° | 61° | 73° | — | — |
| 1979 | 77° | 56° | 66° | — | — |
| 1978 | 90° | 77° | 83° | — | — |
| 1977 | 80° | 71° | 76° | 1.4" | — |
| 1976 | 84° | 64° | 74° | — | — |
| 1975 | 78° | 67° | 72° | — | — |
| 1974 | 84° | 72° | 78° | 0.58" | — |
| 1973 | 83° | 70° | 76° | — | — |
| 1972coldest | 70° | 63° | 66° | — | — |
| 1971 | 87° | 67° | 77° | — | — |
55 years of data from PHILADELPHIA CITY