Grinnell Rainfall Forecast

Today 16 Jun
20%
Wed 17 Jun
60%
Thu 18 Jun
No Rain
Fri 19 Jun
5%
Sat 20 Jun
20%
Sun 21 Jun
60%
Mon 22 Jun
45%

Grinnell Rainfall Statistics

June Rainfall

Newton Municipal Airport - Earl Johnson Field (15.5 miles)

Total Rainfall 2026
8.1in
Daily Average 2026
0.05in
Wettest Day 9 April, 2026
1.2in
Wet Days 2026
28/167 (17%)
Total Rainfall May
1.2in
Daily Average May
0.04in
Wettest Day 16 May, 2026
0.7in
Wet Days May
5/31 (16%)
Total Rainfall June
0.8in
Daily Average June
0.1in
Wettest Day 11 June, 2026
0.5in
Wet Days June
3/16 (19%)

Climate (2021–2025)

Newton Municipal Airport - Earl Johnson Field (15.5 miles)

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Annual Average 2021–2025
16.6in
Monthly Average 2021–2026
1.4in
Daily Average 2021–2026
0.05in
Wettest Day 1 June, 2023
2.1in

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