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Philadelphia weather

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EuropeanECMWF
13°
Clear
Feels 12° · Wind 6 km/h · Humidity 89%
AmericanNOAA GFS
13°
Clear
Feels 12° · Wind 6 km/h · Humidity 89%
GermanDWD ICON
13°
Clear
Feels 13° · Wind 4 km/h · Humidity 83%

Latest for Philadelphia: European (ECMWF): 13° Clear · American (NOAA GFS): 13° Clear · German (DWD ICON): 13° Clear.

The weather map: all three models at once

European, American, German side by side around Philadelphia and nearby towns.Live rain radar →
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Hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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10-day forecast, out to 14 days

where the models agree, and where they split

Heading to Philadelphia? Philadelphia, USA, sits at 40.0°N in a temperate climate zone. Before you lock in outdoor plans, compare how the three global models - European (ECMWF), American (GFS) and German (ICON) - forecast Philadelphia right now. Where they agree you can trust it; the days they split are exactly when a single weather app is least reliable. For a city break, the rain hours below tell you which days to plan indoors.

Best time to visit Philadelphia

The most comfortable time to visit Philadelphia is usually April, May and October, when daytime highs sit in the pleasant 16-26°C range and the heaviest September rain is behind you.

Philadelphia weather by month

what to expect in Philadelphia through the year, 1991-2020 normals, Philadelphia Intl AP (WMO)

Here is Philadelphia's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Philadelphia by season.

Jan
5°
-3°
Cold
Feb
7°
-2°
Cold
Mar
12°
1°
Cool
Apr
18°
7°
Mild
May
24°
12°
Warm
Jun
28°
18°
Warm
Jul
31°
21°
Hot
Aug
30°
20°
Hot
Sep
26°
16°
Warm
Wettest
Oct
20°
10°
Mild
Nov
13°
4°
Cool
Dec
8°
0°
Cool

Philadelphia compared with Toronto

30-year averages: daytime highs month by month, rain and sunlight

Warmer through the year

+5°C

average daytime high: Philadelphia 19°C, Toronto 14°C

Rain over a year

+21%

Philadelphia 1,121 mm, Toronto 924 mm

Sunlight vs a clear sky

74% vs 67%

solar energy reaching the ground as a share of a cloudless day, averaged over the year (not sunshine hours)

PhiladelphiaTorontoaverage daytime high, °C, 1991-2020
January, Toronto: 0°CJanuary, Philadelphia: 5°C (+5°C)February, Toronto: 1°CFebruary, Philadelphia: 7°C (+6°C)March, Toronto: 5°CMarch, Philadelphia: 12°C (+7°C)April, Toronto: 12°CApril, Philadelphia: 18°C (+6°C)May, Toronto: 19°CMay, Philadelphia: 24°C (+5°C)June, Toronto: 24°CJune, Philadelphia: 28°C (+4°C)July, Toronto: 27°CJuly, Philadelphia: 31°C (+4°C)August, Toronto: 26°CAugust, Philadelphia: 30°C (+4°C)September, Toronto: 22°CSeptember, Philadelphia: 26°C (+4°C)October, Toronto: 15°COctober, Philadelphia: 20°C (+5°C)November, Toronto: 8°CNovember, Philadelphia: 13°C (+5°C)December, Toronto: 3°CDecember, Philadelphia: 8°C (+5°C)

On 30-year averages Philadelphia runs 5°C warmer than Toronto, with every month between +4°C and +7°C. Over a year it gets 21% more rain than Toronto.

Month by month in numbers
MonthPhiladelphiaTorontoDifferenceSunlight, PhiladelphiaSunlight, Toronto
January5°C0°C+5°C68%56%
February7°C1°C+6°C71%57%
March12°C5°C+7°C69%64%
April18°C12°C+6°C73%67%
May24°C19°C+5°C72%72%
June28°C24°C+4°C78%76%
July31°C27°C+4°C82%79%
August30°C26°C+4°C80%79%
September26°C22°C+4°C77%76%
October20°C15°C+5°C73%63%
November13°C8°C+5°C74%60%
December8°C3°C+5°C68%54%

Daytime highs and lows on this page are 1991-2020 averages. Philadelphia: station normals from Philadelphia Intl AP (WMO), rain included. Toronto: station normals from Toronto City (WMO); rain is the CHELSA 1981-2010 climatology on a 1 km grid. Sunlight vs a clear sky is NASA POWER's long-term average of the solar energy reaching the ground as a share of a cloudless day; it compares cloudiness and is not a count of sunshine hours. Toronto stands in for Canada here; other cities have their own climate tables.

Common questions

When is the best time to visit Philadelphia?
The most comfortable time to visit Philadelphia is usually April, May and October, when daytime highs sit in the pleasant 16-26°C range and the heaviest September rain is behind you.
Will it rain in Philadelphia during my trip?
Rain is where forecasts disagree most. Instead of trusting one app, the comparison above lines up the European, American and German models for Philadelphia - check your dates and look for the days they agree; those are the ones you can plan around.
Which forecast is most accurate for Philadelphia?
For destinations abroad we compare three open global models (ECMWF, GFS and ICON) and show you where they disagree, so you can judge the confidence yourself.
How much warmer is Philadelphia than Toronto?
On 30-year averages (1991-2020) the daytime high in Philadelphia is about 5°C warmer than in Toronto (19°C against 14°C), with the monthly gap between 4°C and 7°C.

More holiday weather

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