Janesville Rainfall Forecast

Today 21 May
5%
Fri 22 May
15%
Sat 23 May
70%
Sun 24 May
20%
Mon 25 May
10%
Tue 26 May
20%
Wed 27 May
30%

Janesville Rainfall Statistics

May Rainfall

Janesville-Rock County (4.3 miles)

Total Rainfall 2026
4.9in
Daily Average 2026
0.04in
Wettest Day 10 April, 2026
0.7in
Wet Days 2026
22/141 (16%)
Total Rainfall April
3.4in
Daily Average April
0.1in
Wettest Day 10 April, 2026
0.7in
Wet Days April
14/30 (47%)
Total Rainfall May
0.1in
Daily Average May
0in
Wettest Day 16 May, 2026
0.1in
Wet Days May
1/21 (5%)

Climate (2010–Present)

Janesville-Rock County (4.3 miles)

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Annual Average 2021–2025
13.4in
Monthly Average 2021–2026
1.2in
Daily Average 2021–2026
0.04in
Wettest Day 22 June, 2024
2.2in

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