Janesville Climate: Weather by Month and Best Time to Visit

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

Best time to visit

Year at a glance

Jan 4.0 Feb 4.2 Mar 5.2 Apr 6.2 May 7.2 Jun 7.4 Jul 7.7 Aug 7.7 Sep 7.9 Oct 6.9 Nov 5.6 Dec 4.1

Weather by month

Month	Avg high	Avg low	Rainfall	Rainy days	Humidity	Sunshine	Score
January	-2°C	-10°C	44 mm	8	–	–	4.0
February	1°C	-8°C	43 mm	7	–	–	4.2
March	7°C	-2°C	61 mm	9	–	–	5.2
April	15°C	4°C	101 mm	12	–	–	6.2
May	21°C	10°C	101 mm	12	–	–	7.2
June	26°C	16°C	105 mm	12	–	–	7.4
July	28°C	18°C	85 mm	10	–	–	7.7
August	27°C	17°C	91 mm	10	–	–	7.7
September	23°C	13°C	83 mm	9	–	–	7.9
October	16°C	6°C	71 mm	9	–	–	6.9
November	8°C	0°C	56 mm	8	–	–	5.6
December	1°C	-6°C	51 mm	8	–	–	4.1