Weather on September 4
Philadelphia, PA
55 Years of Data
Avg High
83°F
Avg Low
67°F
Warmest
2018
87°F avg
Coldest
1997
62°F avg
About This Date
September 4th in Philadelphia, PA typically brings warm fall weather, with average highs around 83°F and lows near 67°F. Over 55 years of records, the warmest September 4th was in 2018 (87°F average), while the coldest was 1997 (62°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 16% of September 4th dates historically, with the wettest September 4th recording 1.96" 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 September 4th in Philadelphia, PA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 61° | 72° | — | — |
| 2024 | 77° | 57° | 67° | — | — |
| 2023 | 93° | 68° | 81° | — | — |
| 2022 | 88° | 71° | 79° | — | — |
| 2021 | 78° | 61° | 69° | — | — |
| 2020 | 90° | 72° | 81° | 0.25" | — |
| 2019 | 86° | 70° | 78° | — | — |
| 2018warmest | 97° | 77° | 87° | — | — |
| 2017 | 75° | 60° | 68° | — | — |
| 2016 | 78° | 68° | 73° | — | — |
| 2015 | 94° | 76° | 85° | — | — |
| 2014 | 86° | 69° | 78° | — | — |
| 2013 | 85° | 64° | 74° | — | — |
| 2012 | 75° | 72° | 73° | 1.96" | — |
| 2011 | 86° | 71° | 79° | — | — |
| 2010 | 89° | 71° | 80° | — | — |
| 2009 | 84° | 67° | 75° | — | — |
| 2008 | 95° | 74° | 84° | — | — |
| 2007 | 87° | 70° | 78° | — | — |
| 2006 | 78° | 66° | 72° | 0.03" | — |
| 2005 | 88° | 66° | 77° | — | — |
| 2004 | 88° | 68° | 78° | — | — |
| 2003 | 77° | 72° | 74° | 1.24" | — |
| 2002 | 92° | 64° | 78° | — | — |
| 2001 | 86° | 70° | 78° | 0.41" | — |
| 2000 | 87° | 66° | 77° | 0.1" | — |
| 1999 | 80° | 73° | 77° | 0.23" | — |
| 1998 | 86° | 72° | 79° | — | — |
| 1997coldest | 72° | 53° | 62° | — | — |
| 1996 | 83° | 73° | 78° | — | — |
| 1995 | 90° | 66° | 78° | — | — |
| 1994 | 75° | 57° | 66° | — | — |
| 1993 | 80° | 71° | 76° | 0.15" | — |
| 1992 | 83° | 71° | 77° | — | — |
| 1991 | 81° | 65° | 73° | — | — |
| 1990 | 78° | 64° | 71° | — | — |
| 1989 | 76° | 60° | 68° | — | — |
| 1988 | 76° | 64° | 70° | — | — |
| 1987 | 77° | 60° | 69° | — | — |
| 1986 | 79° | 65° | 72° | — | — |
| 1985 | 94° | 74° | 84° | — | — |
| 1984 | 72° | 65° | 68° | — | — |
| 1983 | 91° | 71° | 81° | — | — |
| 1982 | 74° | 62° | 68° | — | — |
| 1981 | 72° | 66° | 69° | — | — |
| 1980 | 90° | 67° | 78° | — | — |
| 1979 | 84° | 72° | 78° | — | — |
| 1978 | 77° | 65° | 71° | — | — |
| 1977 | 84° | 67° | 75° | — | — |
| 1976 | 81° | 60° | 70° | — | — |
| 1975 | 78° | 64° | 71° | — | — |
| 1974 | 66° | 60° | 63° | 0.76" | — |
| 1973 | 92° | 73° | 82° | — | — |
| 1972 | 75° | 64° | 70° | — | — |
| 1971 | 87° | 69° | 78° | — | — |
55 years of data from PHILADELPHIA CITY