Weather on September 19
Philadelphia, PA
55 Years of Data
Avg High
78°F
Avg Low
61°F
Warmest
1983
82°F avg
Coldest
1987
59°F avg
About This Date
September 19th in Philadelphia, PA typically brings pleasant fall weather, with average highs around 78°F and lows near 61°F. Over 55 years of records, the warmest September 19th was in 1983 (82°F average), while the coldest was 1987 (59°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 16% of September 19th dates historically, with the wettest September 19th recording 4.01" 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 19th in Philadelphia, PA? Great weather for outdoor activities.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 66° | 77° | — | — |
| 2024 | 77° | 65° | 71° | — | — |
| 2023 | 72° | 59° | 65° | — | — |
| 2022 | 86° | 69° | 78° | — | — |
| 2021 | 89° | 69° | 79° | — | — |
| 2020 | 70° | 48° | 59° | — | — |
| 2019 | 75° | 55° | 65° | — | — |
| 2018 | 83° | 69° | 76° | 3.66" | — |
| 2017 | 80° | 68° | 74° | — | — |
| 2016 | — | 71° | — | 3.66" | — |
| 2015 | 87° | 68° | 78° | — | — |
| 2014 | 75° | 56° | 65° | — | — |
| 2013 | 73° | 56° | 64° | — | — |
| 2012 | 80° | 63° | 71° | 2.92" | — |
| 2011 | 72° | 55° | 63° | — | — |
| 2010 | 77° | 62° | 70° | — | — |
| 2009 | 74° | 52° | 63° | — | — |
| 2008 | 69° | 54° | 61° | — | — |
| 2007 | 78° | 55° | 67° | — | — |
| 2006 | 78° | 60° | 69° | — | — |
| 2005 | 92° | 67° | 79° | — | — |
| 2004 | 70° | 51° | 60° | — | — |
| 2003 | 85° | 73° | 79° | — | — |
| 2002 | 85° | 65° | 75° | — | — |
| 2001 | 85° | 63° | 74° | — | — |
| 2000 | 71° | 62° | 67° | 4.01" | — |
| 1999 | 77° | 56° | 66° | — | — |
| 1998 | 84° | 64° | 74° | — | — |
| 1997 | 85° | 62° | 73° | — | — |
| 1996 | 77° | 58° | 67° | — | — |
| 1995 | 76° | 57° | 66° | — | — |
| 1994 | 74° | 57° | 65° | — | — |
| 1993 | 70° | 53° | 61° | 0.53" | — |
| 1992 | 76° | 62° | 69° | — | — |
| 1991 | 80° | 54° | 67° | — | — |
| 1990 | 65° | 55° | 60° | — | — |
| 1989 | 73° | 60° | 67° | — | — |
| 1988 | 82° | 66° | 74° | — | — |
| 1987coldest | 62° | 56° | 59° | — | — |
| 1986 | 73° | 61° | 67° | — | — |
| 1985 | 88° | 66° | 77° | — | — |
| 1984 | 78° | 58° | 68° | — | — |
| 1983warmest | 95° | 68° | 82° | — | — |
| 1982 | 74° | 58° | 66° | — | — |
| 1981 | 68° | 56° | 62° | — | — |
| 1980 | 82° | 59° | 71° | — | — |
| 1979 | 69° | 54° | 61° | — | — |
| 1978 | 70° | 58° | 64° | 0.08" | — |
| 1977 | 87° | 67° | 77° | 3.1" | — |
| 1976 | 82° | 65° | 73° | — | — |
| 1975 | 76° | 64° | 70° | 0.43" | — |
| 1974 | 79° | 63° | 71° | — | — |
| 1973 | 72° | 53° | 62° | — | — |
| 1972 | 81° | 69° | 75° | 0.3" | — |
| 1971 | 74° | 66° | 70° | — | — |
55 years of data from PHILADELPHIA CITY