Grinnell Regional Airport Rainfall Forecast

Today 8 Sep
50%
Wed 9 Sep
85%
Thu 10 Sep
5%
Fri 11 Sep
5%
Sat 12 Sep
65%
Sun 13 Sep
40%
Mon 14 Sep
65%

Grinnell Regional Airport Rainfall Statistics

September Rainfall

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

Total Rainfall 2026
14.7in
Daily Average 2026
0.1in
Wettest Day 2 July, 2026
1.8in
Wet Days 2026
40/251 (16%)
Total Rainfall August
0in
Daily Average August
0in
Wettest Day 1 August, 2026
0in
Wet Days August
–
Total Rainfall September
0in
Daily Average September
0in
Wettest Day 1 September, 2026
0in
Wet Days September
–

Climate (2021–2025)

Newton Municipal Airport - Earl Johnson Field (14.9 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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