Philadelphia, Pennsylvania, United States climate

Average temperatures, precipitation and all-time records for Philadelphia, Pennsylvania, United States, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is July, averaging a high of 87°F, and its coldest is January, with an average low of 27°F.

Philadelphia, colloquially referred to as Philly, is the most populous city in the U.S. state of Pennsylvania and the sixth-most populous city in the United States. Its population was 1.60 million at the 2020 census and estimated at 1.57 million in 2025. via Wikipedia

How today compares

Latest recorded day: 2026-07-24. Each reading placed on Philadelphia, Pennsylvania, United States's own ±7-day seasonal distribution.

High 83°F Below Normal · 27th pct

Low 62°F Very Low · 5th pct

Feels-like 87°F Low · 22nd pct

Humidity 12.0 g/m³ Very Low · 9th pct

Wind 9 mph Above Normal · 62nd pct

Gust 11 mph Very Low · 1st pct

Precip 0.00 in Dry

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Philadelphia average temperatures by month

Typical daily high and low, and average precipitation, for each month in Philadelphia, Pennsylvania, United States, based on 1980–2026 records. The wettest month is January (0.10 in on an average day).

Month	Avg high	Avg low	Avg precip
January	40°F	27°F	0.10 in
February	44°F	29°F	0.10 in
March	53°F	36°F	0.10 in
April	64°F	46°F	0.10 in
May	73°F	54°F	0.10 in
June	82°F	65°F	0.10 in
July	87°F	71°F	0.10 in
August	84°F	69°F	0.10 in
September	78°F	62°F	0.10 in
October	67°F	50°F	0.10 in
November	55°F	40°F	0.10 in
December	44°F	31°F	0.10 in

Jan 13°–53°

Feb 17°–58°

Mar 25°–68°

Apr 36°–77°

May 45°–84°

Jun 57°–91°

Jul 63°–94°

Aug 61°–91°

Sep 52°–86°

Oct 40°–77°

Nov 30°–67°

Dec 20°–57°

Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -10°F to 115°F scale, so the whole year's rhythm reads at a glance.

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Record extremes

Hottest day on record: 106°F on 2011-07-22
Coldest day on record: -14°F on 1984-01-22

All Philadelphia weather records →

Percentiles compare each day to Philadelphia, Pennsylvania, United States's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →