Helena Regional Airport Rainfall Forecast

Today 11 Dec
90%
Fri 12 Dec
85%
Sat 13 Dec
10%
Sun 14 Dec
No Rain
Mon 15 Dec
30%
Tue 16 Dec
65%
Wed 17 Dec
45%

Helena Regional Airport Rainfall Statistics

December Rainfall

Helena Regional Airport (0 miles)

Total Rainfall 2025
13.2in
Daily Average 2025
0.04in
Wettest Day 14 May, 2025
1in
Wet Days 2025
102/345 (30%)
Total Rainfall November
0.4in
Daily Average November
0.02in
Wettest Day 28 November, 2025
0.2in
Wet Days November
6/30 (20%)
Total Rainfall December
0.1in
Daily Average December
0.02in
Wettest Day 5 December, 2025
0.1in
Wet Days December
5/11 (45%)

Climate (2010–Present)

Helena Regional Airport (0 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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