Philadelphia weather by month & the best time to visit

When is the best time to visit Philadelphia?

For sunshine, the best time to visit Philadelphia is May, then September and June. The dullest month is January (0/100, 78 mm of rain). The full month-by-month picture is in the table below.

How sunny is Philadelphia?

Philadelphia gets a moderate 2,267 hours of sunshine a year. 74 Sunshine Score points separate May (74) from January (0), so the month you pick matters. It ranks #294 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 1,228 mm of rain spreads fairly evenly across the months, with no pronounced dry season.

Sunshine Score by month

Month	Score	Day high	Night low	Rain	UV
January	0	4° / 39°F	-5° / 23°F	78 mm	1
February	0	5° / 41°F	-4° / 25°F	78 mm	2
March	12	10° / 50°F	-1° / 30°F	100 mm	4
April	56	17° / 63°F	5° / 41°F	97 mm	5
May	74	22° / 72°F	11° / 52°F	96 mm	6
June	70	27° / 81°F	17° / 63°F	121 mm	7
July	69	30° / 86°F	20° / 68°F	124 mm	7
August	70	30° / 86°F	19° / 66°F	121 mm	7
September	73	26° / 79°F	15° / 59°F	102 mm	5
October	66	19° / 66°F	8° / 46°F	110 mm	4
November	31	13° / 55°F	2° / 36°F	90 mm	2
December	0	7° / 45°F	-2° / 28°F	111 mm	1

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