Weather on October 18
Philadelphia, PA
55 Years of Data
Avg High
66°F
Avg Low
50°F
Warmest
2016
72°F avg
Coldest
2009
44°F avg
About This Date
October 18th in Philadelphia, PA typically brings mild fall weather, with average highs around 66°F and lows near 50°F. Over 53 years of records, the warmest October 18th was in 2016 (72°F average), while the coldest was 2009 (44°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 15% of October 18th dates historically, with the wettest October 18th recording 2.41" 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 October 18th in Philadelphia, PA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 50° | 58° | — | — |
| 2024 | 62° | 47° | 54° | — | — |
| 2023 | 66° | 51° | 59° | — | — |
| 2022 | 70° | 46° | 58° | 1.07" | — |
| 2021 | 62° | 52° | 57° | — | — |
| 2020 | 62° | 45° | 53° | — | — |
| 2019 | 60° | 48° | 54° | — | — |
| 2018 | 66° | 43° | 54° | — | — |
| 2016warmest | 84° | 60° | 72° | — | — |
| 2015 | 56° | 38° | 47° | — | — |
| 2014 | 73° | 58° | 65° | — | — |
| 2013 | 74° | 55° | 64° | — | — |
| 2012 | 64° | 46° | 55° | — | — |
| 2011 | 74° | 55° | 64° | 0.61" | — |
| 2010 | 72° | 52° | 62° | — | — |
| 2009coldest | 48° | 39° | 44° | 0.03" | — |
| 2008 | 59° | 43° | 51° | — | — |
| 2007 | 78° | 63° | 70° | — | — |
| 2006 | 73° | 62° | 68° | — | — |
| 2005 | 78° | 55° | 67° | — | — |
| 2004 | 62° | 44° | 53° | 2.41" | — |
| 2003 | 59° | 47° | 53° | — | — |
| 2001 | 60° | 41° | 51° | — | — |
| 2000 | 65° | 56° | 60° | 0.15" | — |
| 1999 | 63° | 48° | 55° | — | — |
| 1998 | 78° | 57° | 68° | — | — |
| 1997 | 64° | 48° | 56° | 0.38" | — |
| 1996 | 68° | 59° | 64° | — | — |
| 1995 | 67° | 48° | 57° | — | — |
| 1994 | 72° | 48° | 60° | — | — |
| 1993 | 72° | 58° | 65° | — | — |
| 1992 | 56° | 43° | 49° | — | — |
| 1991 | 73° | 50° | 62° | — | — |
| 1990 | 76° | 51° | 63° | — | — |
| 1989 | 67° | 46° | 56° | — | — |
| 1988 | 66° | 57° | 62° | — | — |
| 1987 | 69° | 50° | 60° | — | — |
| 1986 | 60° | 48° | 54° | — | — |
| 1985 | 72° | 50° | 61° | — | — |
| 1984 | 77° | 63° | 70° | — | — |
| 1983 | 69° | 57° | 63° | — | — |
| 1982 | 59° | 42° | 51° | — | — |
| 1981 | 63° | 48° | 55° | — | — |
| 1980 | 75° | 60° | 68° | — | — |
| 1979 | 75° | 57° | 66° | — | — |
| 1978 | 59° | 39° | 49° | — | — |
| 1977 | 64° | 39° | 52° | — | — |
| 1976 | 54° | 41° | 47° | — | — |
| 1975 | 74° | 57° | 65° | 1.42" | — |
| 1974 | 58° | 38° | 48° | — | — |
| 1973 | 62° | 46° | 54° | — | — |
| 1972 | 51° | 41° | 46° | 0.23" | — |
| 1971 | 62° | 50° | 56° | — | — |
53 years of data from PHILADELPHIA WSFO