Koch Airport Rainfall Forecast

Today 18 Apr
100%
Sun 19 Apr
30%
Mon 20 Apr
No Rain
Tue 21 Apr
No Rain
Wed 22 Apr
5%
Thu 23 Apr
15%
Fri 24 Apr
55%

Koch Airport Rainfall Statistics

April Rainfall

Janesville-Rock County (13.7 miles)

Total Rainfall 2026
4.2in
Daily Average 2026
0.04in
Wettest Day 10 April, 2026
0.7in
Wet Days 2026
16/108 (15%)
Total Rainfall March
0.8in
Daily Average March
0.03in
Wettest Day 7 March, 2026
0.3in
Wet Days March
4/31 (13%)
Total Rainfall April
2.9in
Daily Average April
0.2in
Wettest Day 10 April, 2026
0.7in
Wet Days April
9/18 (50%)

Climate (2010–Present)

Janesville-Rock County (13.7 miles)

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Annual Average 2021–2025
13.4in
Monthly Average 2021–2026
1.1in
Daily Average 2021–2026
0.04in
Wettest Day 22 June, 2024
2.2in

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