Grimes Rainfall Forecast

Today 28 May
No Rain
Fri 29 May
10%
Sat 30 May
30%
Sun 31 May
15%
Mon 1 Jun
20%
Tue 2 Jun
10%
Wed 3 Jun
5%

Grimes Rainfall Statistics

May Rainfall

Ankeny Regional Airport (10.6 miles)

Total Rainfall 2026
11.2in
Daily Average 2026
0.1in
Wettest Day 18 May, 2026
1.6in
Wet Days 2026
28/148 (19%)
Total Rainfall April
5.3in
Daily Average April
0.2in
Wettest Day 9 April, 2026
1.2in
Wet Days April
11/30 (37%)
Total Rainfall May
2.4in
Daily Average May
0.1in
Wettest Day 18 May, 2026
1.6in
Wet Days May
7/28 (25%)

Climate (2010–Present)

Ankeny Regional Airport (10.6 miles)

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Annual Average 2021–2025
19.7in
Monthly Average 2021–2026
1.8in
Daily Average 2021–2026
0.1in
Wettest Day 21 May, 2024
2.4in

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