Philadelphia
Pennsylvania, USA
Long-term weather forecast
Long-term weather forecast
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July 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
July is Philadelphia's hottest month with the mercury varying in the range of 69.3°F (20.7°C) to 87.1°F (30.6°C). With a high humidity of 70% on average and up to eight and a half hours of daily sunshine, a day out in the streets of Philadelphia feels hot and muggy. A light dressing is highly recommended.
The highest rainfall is registered in July, with the highest precipitation of 4.4" (111.8mm) being fetched from approximately ten rainy days. Packing an emergency umbrella or raincoat is vital.
Visitors are informed to be off the streets as the rains are occasionally accompanied by thunderstorms and lightning.
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  • The average high temperature in July: 87.1°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (40.3°F).

  • The average low temperature in July: 69.2°F

The month with the highest average low temperature is July (69.2°F).
The coldest month (with the lowest average low temperature) is January (25.6°F).

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  • The average humidity in July: 69.6%

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 July: 4.4"

The wettest month (with the highest rainfall) is July (4.4").
The driest month (with the lowest rainfall) is February (2.7").

  • The average rainfall days in July: 9.9 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 July: 0"

The month with the highest snowfall is February (8.8").
Months with the lowest snowfall are May, June, July, August, September and October (0").

  • The average snowfall days in July: 0 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 sea temperature in July: 74°F

The best month for swimming (with the highest average sea temperature) is August (75.9°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

  • The average daylight in July: 15h

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 July: 8.9h

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 July: 9

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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