Herbert Island (West Side) Rainfall Forecast

Today 20 May
100%
Thu 21 May
60%
Fri 22 May
50%
Sat 23 May
35%
Sun 24 May
90%
Mon 25 May
90%
Tue 26 May
75%

Herbert Island (West Side) Rainfall Statistics

May Rainfall

Unalaska, Unalaska Airport (169.6 miles)

Total Rainfall 2026
6.2in
Daily Average 2026
0.05in
Wettest Day 16 January, 2026
1.5in
Wet Days 2026
51/140 (36%)
Total Rainfall April
1.8in
Daily Average April
0.1in
Wettest Day 25 April, 2026
0.7in
Wet Days April
16/30 (53%)
Total Rainfall May
0.4in
Daily Average May
0.02in
Wettest Day 15 May, 2026
0.2in
Wet Days May
10/20 (50%)

Climate (2010–Present)

Unalaska, Unalaska Airport (169.6 miles)

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Annual Average 2021–2025
35.2in
Monthly Average 2021–2026
2.7in
Daily Average 2021–2026
0.1in
Wettest Day 20 December, 2022
3.4in

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