Philadelphia
Pennsylvania, USA
Long-term weather forecast
Long-term weather forecast
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April weather forecast and Climate
Philadelphia, PA

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The George Washington statue in front of the Independence Hall in Philadelphia, Pennsylvania
The George Washington statue in front of the Independence Hall in Philadelphia, Pennsylvania
In April, Philadelphia begins to enjoy the spring weather with the temperature rising to the range of 44.1°F (6.7°C) and 63.9°F (17.7°C).
The sunshine hours also increase to an average of seven per day, making most days' outdoor activities quite pleasant. The first week of April receives snowfall albeit in very minimal amounts, but it quickly clears out as the temperature increases. A slight decrease in rainfall sees Philadelphia record 3.6" (91.4mm) precipitation collected from an average of eleven days.
Generally, the days are warm and pleasant, but mildly wet.
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  • The average high temperature in April: 17.7°C

The warmest month (with the highest average high temperature) is July (30.6°C).
The month with the lowest average high temperature is January (4.6°C).

  • The average low temperature in April: 6.7°C

The month with the highest average low temperature is July (20.7°C).
The coldest month (with the lowest average low temperature) is January (-3.6°C).

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  • The average humidity in April: 60.4%

The month with the highest relative humidity is September (71.6%).
The month with the lowest relative humidity is April (60.4%).

  • The average rainfall in April: 90.4mm

The wettest month (with the highest rainfall) is July (110.5mm).
The driest month (with the lowest rainfall) is February (67.3mm).

  • The average rainfall days in April: 11.3 days

The month with the highest number of rainy days is April (11.3 days).
The month with the lowest number of rainy days is August (8.4 days).

  • The average snowfall in April: 12.7mm

The month with the highest snowfall is February (223.5mm).
Months with the lowest snowfall are May, June, July, August, September and October (0mm).

  • The average snowfall days in April: 0.4 days

The month with the highest number of snowfall days is January (4.4 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

  • The average daylight in April: 13h

Months with the longest days are June and July (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9h).

  • The average sunshine in April: 7.2h

The month with most sunshine is June (Average sunshine: 9h).
The month with least sunshine is December (Average sunshine: 4.4h).

  • The average UV index in April: 6

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).

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