Altoona Rainfall Forecast

Today 15 May
15%
Sat 16 May
80%
Sun 17 May
75%
Mon 18 May
75%
Tue 19 May
70%
Wed 20 May
5%
Thu 21 May
10%

Altoona Rainfall Statistics

May Rainfall

Ankeny Regional Airport (5.6 miles)

Total Rainfall 2026
8.8in
Daily Average 2026
0.1in
Wettest Day 9 April, 2026
1.2in
Wet Days 2026
23/135 (17%)
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
0.04in
Daily Average May
0in
Wettest Day 7 May, 2026
0.02in
Wet Days May
2/15 (13%)

Climate (2010–Present)

Ankeny Regional Airport (5.6 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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