Weather on September 27
Philadelphia, PA
55 Years of Data
About This Date
September 27th in Philadelphia, PA typically brings pleasant fall weather, with average highs around 76°F and lows near 61°F. Over 55 years of records, the warmest September 27th was in 1998 (82°F average), while the coldest was 1980 (57°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 31% of September 27th dates historically, with the wettest September 27th recording 1.45" 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 27th in Philadelphia, PA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 67° | 76° | — | — |
| 2024 | 81° | 68° | 74° | — | — |
| 2023 | 61° | 55° | 58° | — | — |
| 2022 | 78° | 60° | 69° | — | — |
| 2021 | 74° | 61° | 67° | — | — |
| 2020 | 78° | 66° | 72° | 0.2" | — |
| 2019 | 85° | 60° | 72° | 0.36" | — |
| 2018 | 86° | 63° | 74° | 0.99" | — |
| 2017 | 84° | 67° | 75° | — | — |
| 2016 | 74° | 55° | 64° | 0.23" | — |
| 2015 | 70° | 58° | 64° | — | — |
| 2014 | 78° | 60° | 69° | — | — |
| 2013 | 72° | 59° | 65° | — | — |
| 2012 | 79° | 64° | 71° | 0.71" | — |
| 2011 | 82° | 69° | 76° | 0.76" | — |
| 2010 | 70° | 64° | 67° | 0.33" | — |
| 2009 | 74° | 60° | 67° | 0.15" | — |
| 2008 | 74° | 68° | 71° | 1.35" | — |
| 2007 | 87° | 71° | 79° | — | — |
| 2006 | 77° | 62° | 70° | — | — |
| 2005 | 80° | 67° | 73° | — | — |
| 2004 | 79° | 61° | 70° | — | — |
| 2003 | 82° | 69° | 76° | 0.91" | — |
| 2002 | 82° | 59° | 71° | 1.45" | — |
| 2001 | 68° | 54° | 61° | — | — |
| 2000 | 70° | 48° | 59° | — | — |
| 1999 | 77° | 62° | 70° | — | — |
| 1998warmest | 93° | 72° | 82° | — | — |
| 1997 | 75° | 53° | 64° | — | — |
| 1996 | 74° | 61° | 67° | — | — |
| 1995 | 76° | 56° | 66° | 0.3" | — |
| 1994 | 75° | 68° | 72° | 0.33" | — |
| 1993 | 82° | 61° | 71° | — | — |
| 1992 | 71° | 59° | 65° | — | — |
| 1991 | 64° | 53° | 59° | — | — |
| 1990 | 76° | 57° | 66° | — | — |
| 1989 | 64° | 50° | 57° | — | — |
| 1988 | 77° | 59° | 68° | — | — |
| 1987 | 79° | 60° | 69° | — | — |
| 1986 | 74° | 58° | 66° | — | — |
| 1985 | 76° | 63° | 69° | — | — |
| 1984 | 64° | 50° | 57° | — | — |
| 1983 | 84° | 58° | 71° | — | — |
| 1982 | 74° | 63° | 68° | — | — |
| 1981 | 83° | 61° | 72° | — | — |
| 1980coldest | 66° | 49° | 57° | — | — |
| 1979 | 75° | 60° | 68° | — | — |
| 1978 | 72° | 50° | 61° | — | — |
| 1977 | 76° | 63° | 69° | 0.36" | — |
| 1976 | 74° | 68° | 71° | 0.13" | — |
| 1975 | 74° | 61° | 67° | 0.25" | — |
| 1974 | 78° | 58° | 68° | — | — |
| 1973 | 79° | 60° | 69° | — | — |
| 1972 | 81° | 70° | 75° | 0.08" | — |
| 1971 | 65° | 59° | 62° | — | — |