Weather on May 31
Philadelphia, PA
55 Years of Data
Avg High
81°F
Avg Low
63°F
Warmest
1987
85°F avg
Coldest
2021
54°F avg
About This Date
May 31st in Philadelphia, PA typically brings warm spring weather, with average highs around 81°F and lows near 63°F. Over 54 years of records, the warmest May 31st was in 1987 (85°F average), while the coldest was 2021 (54°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 28% of May 31st dates historically, with the wettest May 31st recording 3.91" of rain. The last decade has been 3.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.9°F cooler on this date compared to 20-30 years ago.
Planning for May 31st in Philadelphia, PA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 57° | 69° | 2.95" | — |
| 2024 | 76° | 56° | 66° | — | — |
| 2023 | 76° | 52° | 64° | — | — |
| 2022 | 85° | 68° | 76° | — | — |
| 2021coldest | 60° | 48° | 54° | 0.15" | — |
| 2019 | 86° | 68° | 77° | 1.55" | — |
| 2018 | 81° | 62° | 71° | 0.05" | — |
| 2017 | 62° | 56° | 59° | 0.15" | — |
| 2016 | 81° | 67° | 74° | — | — |
| 2015 | 87° | 70° | 78° | — | — |
| 2014 | 77° | 59° | 68° | — | — |
| 2013 | 94° | 73° | 83° | — | — |
| 2012 | 80° | 66° | 73° | — | — |
| 2011 | 97° | 74° | 85° | — | — |
| 2010 | 88° | 72° | 80° | — | — |
| 2009 | 82° | 54° | 68° | — | — |
| 2008 | 79° | 67° | 73° | 0.41" | — |
| 2007 | 90° | 68° | 79° | 2.08" | — |
| 2006 | 92° | 70° | 81° | — | — |
| 2005 | 87° | 58° | 72° | — | — |
| 2004 | 69° | 60° | 65° | 1.02" | — |
| 2003 | 74° | 66° | 70° | 3.91" | — |
| 2002 | 90° | 71° | 80° | 0.15" | — |
| 2001 | 71° | 62° | 67° | — | — |
| 2000 | 76° | 53° | 64° | — | — |
| 1999 | 94° | 69° | 81° | — | — |
| 1998 | 92° | 74° | 83° | 0.66" | — |
| 1997 | 79° | 63° | 71° | — | — |
| 1996 | 79° | 50° | 64° | — | — |
| 1995 | 72° | 63° | 67° | — | — |
| 1994 | 85° | 62° | 73° | — | — |
| 1993 | 72° | 57° | 64° | — | — |
| 1992 | 68° | 58° | 63° | — | — |
| 1991 | 90° | 78° | 84° | — | — |
| 1990 | 75° | 54° | 64° | — | — |
| 1989 | 85° | 70° | 77° | — | — |
| 1988 | 91° | 76° | 83° | — | — |
| 1987warmest | 92° | 79° | 85° | — | — |
| 1986 | 92° | 75° | 83° | — | — |
| 1985 | 74° | 60° | 67° | — | — |
| 1984 | 68° | 55° | 62° | — | — |
| 1983 | 71° | 61° | 66° | — | — |
| 1982 | 85° | 61° | 73° | — | — |
| 1981 | 78° | 66° | 72° | — | — |
| 1980 | 82° | 63° | 72° | — | — |
| 1979 | 79° | 60° | 69° | — | — |
| 1978 | 86° | 66° | 76° | — | — |
| 1977 | 74° | 60° | 67° | — | — |
| 1976 | 80° | 61° | 70° | 0.36" | — |
| 1975 | 82° | 69° | 76° | 0.08" | — |
| 1974 | 72° | 53° | 62° | 0.03" | — |
| 1973 | 77° | 61° | 69° | — | — |
| 1972 | 80° | 65° | 72° | 0.05" | — |
| 1971 | 76° | 59° | 67° | — | — |
54 years of data from PHILADELPHIA CITY