Weather on May 9
Philadelphia, PA
55 Years of Data
Avg High
71°F
Avg Low
53°F
Warmest
2000
82°F avg
Coldest
1977
43°F avg
About This Date
May 9th in Philadelphia, PA typically brings pleasant spring weather, with average highs around 71°F and lows near 53°F. Over 54 years of records, the warmest May 9th was in 2000 (82°F average), while the coldest was 1977 (43°F) — a 39°F range across recorded history. Rain or other precipitation has occurred on about 22% of May 9th dates historically, with the wettest May 9th recording 3.02" 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 May 9th in Philadelphia, PA? Great weather for outdoor activities.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 59° | 71° | — | — |
| 2024 | 88° | 64° | 76° | — | — |
| 2023 | 79° | 60° | 69° | — | — |
| 2022 | 60° | 48° | 54° | — | — |
| 2021 | 68° | 47° | 57° | — | — |
| 2019 | 70° | 56° | 63° | — | — |
| 2018 | 78° | 56° | 67° | — | — |
| 2017 | 61° | 46° | 53° | — | — |
| 2016 | 70° | 51° | 60° | — | — |
| 2015 | 85° | 62° | 73° | — | — |
| 2014 | 70° | 55° | 62° | — | — |
| 2013 | 75° | 58° | 66° | 1.45" | — |
| 2012 | 75° | 63° | 69° | 0.97" | — |
| 2011 | 73° | 54° | 63° | — | — |
| 2010 | 78° | 46° | 62° | — | — |
| 2009 | 84° | 56° | 70° | — | — |
| 2008 | 55° | 48° | 52° | 0.56" | — |
| 2007 | 78° | 57° | 68° | — | — |
| 2006 | 76° | 56° | 66° | — | — |
| 2005 | 80° | 53° | 67° | — | — |
| 2004 | 82° | 52° | 67° | 0.69" | — |
| 2003 | 60° | 56° | 58° | 0.13" | — |
| 2002 | 61° | 52° | 56° | 0.1" | — |
| 2001 | 79° | 55° | 67° | — | — |
| 2000warmest | 92° | 72° | 82° | — | — |
| 1999 | 77° | 59° | 68° | — | — |
| 1998 | 64° | 58° | 61° | 1.7" | — |
| 1997 | 62° | 49° | 55° | — | — |
| 1996 | 56° | 51° | 53° | 1.07" | — |
| 1995 | 70° | 46° | 58° | — | — |
| 1994 | 62° | 52° | 57° | — | — |
| 1993 | 81° | 56° | 68° | — | — |
| 1992 | 66° | 53° | 60° | — | — |
| 1991 | 66° | 56° | 61° | — | — |
| 1990 | 80° | 62° | 71° | — | — |
| 1989 | 69° | 48° | 59° | — | — |
| 1988 | 71° | 47° | 59° | — | — |
| 1987 | 77° | 54° | 65° | — | — |
| 1986 | 69° | 47° | 58° | — | — |
| 1985 | 74° | 50° | 62° | — | — |
| 1984 | 66° | 52° | 59° | — | — |
| 1983 | 58° | 44° | 51° | — | — |
| 1982 | 68° | 55° | 62° | — | — |
| 1981 | 74° | 47° | 60° | — | — |
| 1980 | 60° | 46° | 53° | — | — |
| 1979 | 86° | 62° | 74° | — | — |
| 1978 | 73° | 56° | 64° | 2.01" | — |
| 1977coldest | 47° | 39° | 43° | 0.15" | — |
| 1976 | 69° | 49° | 59° | — | — |
| 1975 | 76° | 54° | 65° | — | — |
| 1974 | 70° | 51° | 60° | 1.14" | — |
| 1973 | 78° | 59° | 69° | — | — |
| 1972 | 53° | 46° | 50° | 3.02" | — |
| 1971 | 56° | 50° | 53° | — | — |
54 years of data from PHILADELPHIA WSFO