Philadelphia, Pennsylvania, United States weather records
Record high and low temperatures for Philadelphia, Pennsylvania, United States, by month, by season, and all-time, with the dates they occurred, across 1981–2026 of daily climate history. Its hottest day on record reached 103°F on 1999-07-05; its coldest fell to -16°F on 1994-01-21.
Records by month
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.
| Month | Daytime high | Overnight low |
|---|---|---|
| January | 68°F2007-01-06
1°F1994-01-19
|
57°F1998-01-08
-16°F1994-01-21
|
| February | 74°F2018-02-21
15°F2026-02-08
|
54°F1990-02-23
-5°F2014-02-12
|
| March | 81°F1998-03-30
23°F2015-03-06
|
59°F1998-03-31
-6°F2015-03-06
|
| April | 92°F2002-04-17
30°F1982-04-07
|
64°F2002-04-18
18°F1982-04-07
|
| May | 95°F2026-05-19
47°F2020-05-09
|
71°F1991-05-31
32°F2020-05-10
|
| June | 99°F2025-06-24
59°F1997-06-03
|
76°F2025-06-24
41°F1986-06-03
|
| July | 103°F1999-07-05
65°F1997-07-24
|
79°F2011-07-23
49°F1988-07-01
|
| August | 102°F2001-08-09
66°F2007-08-21
|
78°F2016-08-14
44°F1982-08-29
|
| September | 98°F2023-09-06
51°F1984-09-28
|
75°F1993-09-03
38°F1991-09-28
|
| October | 95°F2019-10-02
39°F2011-10-29
|
71°F2017-10-08
25°F2011-10-30
|
| November | 81°F2024-11-06
29°F1996-11-28
|
63°F2018-11-02
17°F2018-11-23
|
| December | 75°F1998-12-07
10°F1983-12-25
|
57°F2015-12-24
0°F1989-12-23
|
Records by season
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Northern Hemisphere, each a three-month span).
| Season | Daytime high | Overnight low |
|---|---|---|
| Winter (Dec–Feb) | 75°F1998-12-07
1°F1994-01-19
|
57°F2015-12-24
-16°F1994-01-21
|
| Spring (Mar–May) | 95°F2026-05-19
23°F2015-03-06
|
71°F1991-05-31
-6°F2015-03-06
|
| Summer (Jun–Aug) | 103°F1999-07-05
59°F1997-06-03
|
79°F2011-07-23
41°F1986-06-03
|
| Autumn (Sep–Nov) | 98°F2023-09-06
29°F1996-11-28
|
75°F1993-09-03
17°F2018-11-23
|
All-time records
The most extreme value Philadelphia has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.