Helena Rainfall Forecast

Today 13 May
85%
Wed 14 May
80%
Thu 15 May
70%
Fri 16 May
35%
Sat 17 May
55%
Sun 18 May
75%
Mon 19 May
45%

Helena Rainfall Statistics

May Rainfall

Helena Regional Airport (1.9 miles)

Total Rainfall 2025
4in
Daily Average 2025
0.03in
Wettest Day 4 May, 2025
0.7in
Wet Days 2025
39/133 (29%)
Total Rainfall April
0.3in
Daily Average April
0.01in
Wettest Day 13 April, 2025
0.1in
Wet Days April
8/30 (27%)
Total Rainfall May
1.1in
Daily Average May
0.1in
Wettest Day 4 May, 2025
0.7in
Wet Days May
2/13 (15%)

Climate (2010–Present)

Helena Regional Airport (1.9 miles)

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Annual Average 2020–2024
10.5in
Monthly Average 2020–2025
0.9in
Daily Average 2020–2025
0.03in
Wettest Day 22 September, 2023
1.3in

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