Weather on September 29
Philadelphia, PA
55 Years of Data
Avg High
74°F
Avg Low
58°F
Warmest
2025
78°F avg
Coldest
2000
54°F avg
About This Date
September 29th in Philadelphia, PA typically brings pleasant fall weather, with average highs around 74°F and lows near 58°F. Over 55 years of records, the warmest September 29th was in 2025 (78°F average), while the coldest was 2000 (54°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 20% of September 29th dates historically, with the wettest September 29th recording 2.18" of rain. The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
Planning for September 29th in Philadelphia, PA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 87° | 69° | 78° | — | — |
| 2024 | 70° | 63° | 66° | — | — |
| 2023 | 64° | 57° | 61° | — | — |
| 2022 | 71° | 53° | 62° | — | — |
| 2021 | 75° | 55° | 65° | — | — |
| 2020 | 84° | 68° | 76° | — | — |
| 2019 | 86° | 65° | 75° | 1.04" | — |
| 2018 | 73° | 59° | 66° | — | — |
| 2017 | 79° | 62° | 70° | — | — |
| 2016 | 71° | 60° | 66° | 0.58" | — |
| 2015 | 81° | 67° | 74° | — | — |
| 2014 | 86° | 66° | 76° | — | — |
| 2013 | 73° | 55° | 64° | — | — |
| 2012 | 79° | 60° | 69° | — | — |
| 2011 | 79° | 62° | 70° | — | — |
| 2010 | 80° | 62° | 71° | 0.18" | — |
| 2009 | 68° | 56° | 62° | 0.03" | — |
| 2008 | 73° | 56° | 64° | — | — |
| 2007 | 77° | 59° | 68° | — | — |
| 2006 | 65° | 55° | 60° | — | — |
| 2005 | 77° | 58° | 67° | — | — |
| 2004 | 69° | 63° | 66° | 0.2" | — |
| 2003 | 67° | 55° | 61° | — | — |
| 2002 | 76° | 57° | 66° | — | — |
| 2001 | 65° | 52° | 58° | — | — |
| 2000coldest | 63° | 45° | 54° | — | — |
| 1999 | 80° | 67° | 73° | 2.18" | — |
| 1998 | 77° | 56° | 66° | — | — |
| 1997 | 76° | 65° | 70° | — | — |
| 1996 | 67° | 55° | 61° | 2.13" | — |
| 1995 | 70° | 54° | 62° | — | — |
| 1994 | 74° | 54° | 64° | 0.25" | — |
| 1993 | 65° | 51° | 58° | — | — |
| 1992 | 64° | 48° | 56° | — | — |
| 1991 | 75° | 52° | 63° | — | — |
| 1990 | 77° | 61° | 69° | — | — |
| 1989 | 72° | 55° | 63° | — | — |
| 1988 | 64° | 53° | 59° | — | — |
| 1987 | 81° | 62° | 71° | — | — |
| 1986 | 80° | 64° | 72° | — | — |
| 1985 | 80° | 58° | 69° | — | — |
| 1984 | 68° | 55° | 62° | — | — |
| 1983 | 73° | 56° | 64° | — | — |
| 1982 | 74° | 62° | 68° | — | — |
| 1981 | 66° | 50° | 58° | — | — |
| 1980 | 73° | 57° | 65° | — | — |
| 1979 | 75° | 67° | 71° | — | — |
| 1978 | 67° | 48° | 57° | — | — |
| 1977 | 70° | 55° | 62° | — | — |
| 1976 | 69° | 51° | 60° | — | — |
| 1975 | 76° | 54° | 65° | — | — |
| 1974 | 79° | 58° | 68° | 0.3" | — |
| 1973 | 73° | 64° | 69° | 0.84" | — |
| 1972 | 68° | 60° | 64° | 0.05" | — |
| 1971 | 79° | 64° | 71° | — | — |
55 years of data from PHILADELPHIA WSFO