Johnston Rainfall Forecast

Today 16 Jul
20%
Fri 17 Jul
15%
Sat 18 Jul
5%
Sun 19 Jul
5%
Mon 20 Jul
15%
Tue 21 Jul
15%
Wed 22 Jul
5%

Johnston Rainfall Statistics

July Rainfall

Ankeny Regional Airport (6.8 miles)

Total Rainfall 2026
22.4in
Daily Average 2026
0.1in
Wettest Day 3 July, 2026
3.1in
Wet Days 2026
45/197 (23%)
Total Rainfall June
4.3in
Daily Average June
0.1in
Wettest Day 10 June, 2026
1.1in
Wet Days June
11/30 (37%)
Total Rainfall July
6.3in
Daily Average July
0.4in
Wettest Day 3 July, 2026
3.1in
Wet Days July
5/16 (31%)

Climate (2021–2025)

Ankeny Regional Airport (6.8 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 3 July, 2026
3.1in

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