Weather on September 29
Philadelphia, PA
55 Years of Data
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.
| 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° | — | — |
Philadelphia, PA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Philadelphia, PA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Philadelphia, PA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Philadelphia, PA
Philadelphia, PA has no months that meet our "pleasant" threshold — every season has tradeoffs.