Williamsport Climate: Weather by Month and Best Time to Visit

Best months for Williamsport: September, August, July, June.

Best time to visit

Year at a glance

Jan 3.8 Feb 4.2 Mar 5.0 Apr 6.3 May 7.1 Jun 7.4 Jul 7.5 Aug 7.6 Sep 7.7 Oct 6.7 Nov 5.7 Dec 4.3

Weather by month

Month	Avg high	Avg low	Rainfall	Rainy days	Humidity	Sunshine	Score
January	1°C	-7°C	83 mm	10	–	–	3.8
February	3°C	-6°C	70 mm	9	–	–	4.2
March	8°C	-2°C	98 mm	11	–	–	5.0
April	15°C	4°C	104 mm	12	–	–	6.3
May	21°C	10°C	102 mm	13	–	–	7.1
June	25°C	15°C	108 mm	12	–	–	7.4
July	28°C	17°C	93 mm	11	–	–	7.5
August	27°C	17°C	94 mm	11	–	–	7.6
September	23°C	13°C	117 mm	9	–	–	7.7
October	16°C	7°C	100 mm	10	–	–	6.7
November	9°C	1°C	88 mm	9	–	–	5.7
December	3°C	-3°C	91 mm	10	–	–	4.3