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Philadelphia, PA Climate

Climate in Philadelphia

The typical year in Philadelphia (Pennsylvania), from 1991-2020 normals. For what's happening now, see the current forecast; a month ahead — the 30-day outlook.

Annual mean temp
13.9°C
average across 12 months
Annual precipitation
1284 mm
yearly total
Warmest month
Jul
⌀ max 31°C
Coldest month
Jan
⌀ min -2°C

Temperatures by month

typical high (orange) · typical low (blue)
Jan
-2° … 5°
Feb
-1° … 8°
Mar
2° … 12°
Apr
7° … 18°
May
13° … 23°
Jun
18° … 28°
Jul
22° … 31°
Aug
20° … 30°
Sep
17° … 26°
Oct
11° … 20°
Nov
4° … 13°
Dec
0° … 8°

Precipitation by month

monthly totals across the year
Jan
88 mm
Feb
97 mm
Mar
114 mm
Apr
116 mm
May
123 mm
Jun
101 mm
Jul
125 mm
Aug
114 mm
Sep
110 mm
Oct
95 mm
Nov
89 mm
Dec
112 mm

The short version

RegionPennsylvania
RegionPennsylvania
Latitude39.9524°N
Annual mean13.9°C
Annual precipitation1284 mm

Weather map — Philadelphia

Philadelphia →
Source · 1991-2020 normals
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Updated: 11:47 AM