Weather on September 28
Philadelphia, PA
55 Years of Data
Avg High
75°F
Avg Low
60°F
Warmest
2017
80°F avg
Coldest
1984
51°F avg
About This Date
September 28th in Philadelphia, PA typically brings pleasant fall weather, with average highs around 75°F and lows near 60°F. Over 55 years of records, the warmest September 28th was in 2017 (80°F average), while the coldest was 1984 (51°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 24% of September 28th dates historically, with the wettest September 28th recording 19.05" of rain. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for September 28th in Philadelphia, PA? Great weather for outdoor activities.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 65° | 73° | 0.76" | — |
| 2024 | 70° | 66° | 68° | — | — |
| 2023 | 69° | 55° | 62° | — | — |
| 2022 | 74° | 52° | 63° | — | — |
| 2021 | 83° | 61° | 72° | — | — |
| 2020 | 80° | 67° | 73° | — | — |
| 2019 | 81° | 65° | 73° | — | — |
| 2018 | 73° | 61° | 67° | 2.77" | — |
| 2017warmest | 89° | 71° | 80° | — | — |
| 2016 | 77° | 60° | 69° | — | — |
| 2015 | 68° | 61° | 64° | — | — |
| 2014 | 84° | 62° | 73° | — | — |
| 2013 | 71° | 58° | 64° | — | — |
| 2012 | 76° | 66° | 71° | 0.15" | — |
| 2011 | 79° | 71° | 75° | 0.08" | — |
| 2010 | 78° | 66° | 72° | 0.28" | — |
| 2009 | 77° | 56° | 66° | 0.94" | — |
| 2008 | 78° | 64° | 71° | 0.48" | — |
| 2007 | 79° | 64° | 71° | 0.51" | — |
| 2006 | 79° | 56° | 67° | 1.09" | — |
| 2005 | 84° | 58° | 71° | — | — |
| 2004 | 77° | 63° | 70° | 19.05" | — |
| 2003 | 74° | 59° | 66° | 0.05" | — |
| 2002 | 77° | 64° | 71° | — | — |
| 2001 | 64° | 49° | 56° | — | — |
| 2000 | 73° | 52° | 62° | — | — |
| 1999 | 82° | 69° | 76° | — | — |
| 1998 | 81° | 65° | 73° | — | — |
| 1997 | 72° | 55° | 63° | 0.94" | — |
| 1996 | 82° | 59° | 71° | — | — |
| 1995 | 77° | 58° | 67° | — | — |
| 1994 | 82° | 61° | 71° | — | — |
| 1993 | 67° | 52° | 59° | — | — |
| 1992 | 68° | 62° | 65° | — | — |
| 1991 | 66° | 48° | 57° | — | — |
| 1990 | 78° | 60° | 69° | — | — |
| 1989 | 67° | 48° | 57° | — | — |
| 1988 | 80° | 59° | 70° | — | — |
| 1987 | 82° | 61° | 71° | — | — |
| 1986 | 69° | 59° | 64° | — | — |
| 1985 | 74° | 58° | 66° | — | — |
| 1984coldest | 55° | 46° | 51° | — | — |
| 1983 | 77° | 61° | 69° | — | — |
| 1982 | 75° | 61° | 68° | — | — |
| 1981 | 71° | 55° | 63° | — | — |
| 1980 | 76° | 56° | 66° | — | — |
| 1979 | 75° | 59° | 67° | — | — |
| 1978 | 69° | 52° | 60° | — | — |
| 1977 | 72° | 60° | 66° | — | — |
| 1976 | 69° | 57° | 63° | — | — |
| 1975 | 73° | 55° | 64° | — | — |
| 1974 | 76° | 64° | 70° | 2.31" | — |
| 1973 | 82° | 68° | 75° | — | — |
| 1972 | 70° | 61° | 65° | — | — |
| 1971 | 72° | 63° | 67° | — | — |
55 years of data from PHILADELPHIA WSFO