Weather on October 20
Philadelphia, PA
55 Years of Data
Avg High
65°F
Avg Low
50°F
Warmest
2016
78°F avg
Coldest
1972
39°F avg
About This Date
October 20th in Philadelphia, PA typically brings mild fall weather, with average highs around 65°F and lows near 50°F. Over 54 years of records, the warmest October 20th was in 2016 (78°F average), while the coldest was 1972 (39°F) — a 39°F range across recorded history. Rain or other precipitation has occurred on about 30% of October 20th dates historically, with the wettest October 20th recording 4.17" of rain. The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.
Planning for October 20th in Philadelphia, PA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 50° | 64° | 0.2" | — |
| 2024 | 75° | 49° | 62° | — | — |
| 2023 | 69° | 50° | 60° | 0.38" | — |
| 2022 | 55° | 43° | 49° | — | — |
| 2021 | 71° | 56° | 63° | — | — |
| 2020 | 71° | 53° | 62° | — | — |
| 2019 | 66° | 48° | 57° | — | — |
| 2018 | 62° | 48° | 55° | 0.28" | — |
| 2016warmest | 87° | 68° | 78° | — | — |
| 2015 | 55° | 39° | 47° | — | — |
| 2014 | 56° | 42° | 49° | — | — |
| 2013 | 67° | 48° | 57° | 0.2" | — |
| 2012 | 74° | 61° | 67° | 1.4" | — |
| 2011 | 63° | 50° | 56° | — | — |
| 2010 | 59° | 49° | 54° | 0.05" | — |
| 2009 | 69° | 50° | 60° | — | — |
| 2008 | 63° | 47° | 55° | — | — |
| 2007 | 70° | 59° | 64° | — | — |
| 2006 | 67° | 50° | 58° | 0.1" | — |
| 2005 | 66° | 53° | 60° | 0.25" | — |
| 2004 | 53° | 50° | 52° | 0.33" | — |
| 2003 | 63° | 48° | 55° | — | — |
| 2002 | 65° | 50° | 57° | 0.03" | — |
| 2001 | 73° | 52° | 62° | — | — |
| 2000 | 69° | 48° | 59° | — | — |
| 1999 | 54° | 51° | 52° | 1.68" | — |
| 1998 | 68° | 54° | 61° | — | — |
| 1997 | 66° | 44° | 55° | — | — |
| 1996 | 55° | 46° | 51° | 0.66" | — |
| 1995 | 75° | 56° | 65° | — | — |
| 1994 | 75° | 61° | 68° | — | — |
| 1993 | 60° | 54° | 57° | 1.02" | — |
| 1992 | 48° | 35° | 42° | — | — |
| 1991 | 55° | 42° | 49° | — | — |
| 1990 | 65° | 45° | 55° | — | — |
| 1989 | 65° | 42° | 53° | — | — |
| 1988 | 59° | 44° | 52° | — | — |
| 1987 | 70° | 52° | 61° | — | — |
| 1986 | 68° | 47° | 57° | — | — |
| 1985 | 68° | 56° | 62° | — | — |
| 1984 | 77° | 68° | 73° | — | — |
| 1983 | 57° | 49° | 53° | — | — |
| 1982 | 74° | 52° | 63° | — | — |
| 1981 | 60° | 39° | 50° | — | — |
| 1980 | 60° | 51° | 56° | — | — |
| 1979 | 73° | 56° | 64° | — | — |
| 1978 | 57° | 49° | 53° | — | — |
| 1977 | 61° | 47° | 54° | 0.23" | — |
| 1976 | 64° | 49° | 56° | 4.17" | — |
| 1975 | 61° | 51° | 56° | 0.53" | — |
| 1974 | 44° | 34° | 39° | — | — |
| 1973 | 71° | 50° | 61° | — | — |
| 1972coldest | 48° | 31° | 39° | — | — |
| 1971 | 60° | 57° | 59° | — | — |
54 years of data from PHILADELPHIA CITY