Weather in Philadelphia

• All Year
• Summer
• Autumn
• Winter
• Spring

Yearly weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

• Philadelphia experiences a wide range of temperatures throughout the year, with July being the hottest month, reaching a maximum of 31.0°C, which may be uncomfortable

• The months from June to September offer comfortable temperatures falling within the 18.0°C to 26.0°C range

• December and January have the lowest temperatures, with minimums dropping to 1.0°C and -1.5°C respectively, potentially causing discomfort

• April, May, and October provide pleasant temperatures suitable for various outdoor activities.

Conditions

• Philadelphia experiences a clear seasonal variation in sun hours, peaking in June and July and reaching its lowest in January and December.

• Precipitation is relatively consistent throughout the year, with slightly higher levels in February, July, and December.

• Overall trends suggests that the summer months brings more hours of sunshine where winter months have the least.

• There is no direct correlation between high sunshine hours and low precipitation.

Astronomy

• In Philadelphia, the sunrise times vary significantly throughout the year, with the earliest occurring at 05:32 in June and the latest at 07:18 in January.

• Sunset times also show considerable variation, with the latest sunset at 20:30 in June and the earliest at 16:37 in December.

• The day length ranges from a minimum of 9 hours and 23 minutes in December to a maximum of 14 hours and 57 minutes in June, highlighting the extremes of daylight experienced over the seasons.

• Overall, Philadelphia experiences the most daylight in June during the summer months, while it faces the shortest days during the winter, particularly in December.