Mount Vernon Climate: Weather by Month and Best Time to Visit

Best months for Mount Vernon: September, August, July.

Best time to visit

Year at a glance

Jan 3.8 Feb 4.5 Mar 5.2 Apr 6.3 May 7.1 Jun 7.3 Jul 7.4 Aug 7.7 Sep 7.9 Oct 7.0 Nov 5.8 Dec 4.4

Weather by month

Month	Avg high	Avg low	Rainfall	Rainy days	Humidity	Sunshine	Score
January	2°C	-6°C	85 mm	11	–	–	3.8
February	4°C	-4°C	68 mm	10	–	–	4.5
March	9°C	0°C	95 mm	12	–	–	5.2
April	17°C	6°C	118 mm	13	–	–	6.3
May	22°C	12°C	113 mm	14	–	–	7.1
June	26°C	17°C	107 mm	12	–	–	7.3
July	28°C	19°C	91 mm	12	–	–	7.4
August	27°C	18°C	79 mm	10	–	–	7.7
September	24°C	14°C	77 mm	9	–	–	7.9
October	17°C	7°C	77 mm	10	–	–	7.0
November	10°C	2°C	80 mm	10	–	–	5.8
December	4°C	-3°C	84 mm	11	–	–	4.4