Oswego Climate: Weather by Month and Best Time to Visit

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

Best time to visit

Year at a glance

Jan 2.6 Feb 3.3 Mar 4.1 Apr 5.2 May 6.4 Jun 7.1 Jul 7.4 Aug 7.2 Sep 7.2 Oct 5.6 Nov 4.6 Dec 3.3

Weather by month

Month	Avg high	Avg low	Rainfall	Rainy days	Humidity	Sunshine	Score
January	0°C	-5°C	106 mm	18	–	–	2.6
February	0°C	-6°C	79 mm	13	–	–	3.3
March	4°C	-2°C	89 mm	13	–	–	4.1
April	9°C	3°C	110 mm	12	–	–	5.2
May	15°C	9°C	91 mm	12	–	–	6.4
June	20°C	14°C	109 mm	12	–	–	7.1
July	24°C	19°C	111 mm	12	–	–	7.4
August	24°C	19°C	109 mm	13	–	–	7.2
September	21°C	15°C	113 mm	12	–	–	7.2
October	15°C	9°C	137 mm	15	–	–	5.6
November	9°C	4°C	118 mm	16	–	–	4.6
December	4°C	-1°C	123 mm	18	–	–	3.3