Semisopochnoi Island Rainfall Forecast

Today 20 Sep
5%
Mon 21 Sep
80%
Tue 22 Sep
85%
Wed 23 Sep
80%
Thu 24 Sep
45%
Fri 25 Sep
50%
Sat 26 Sep
15%

Semisopochnoi Island Rainfall Statistics

September Rainfall

Adak Island, Adak Airport (236.7 miles)

Total Rainfall 2026
5.8in
Daily Average 2026
0.02in
Wettest Day 8 February, 2026
0.8in
Wet Days 2026
70/263 (27%)
Total Rainfall August
1.5in
Daily Average August
0.05in
Wettest Day 15 August, 2026
0.5in
Wet Days August
14/31 (45%)
Total Rainfall September
0.1in
Daily Average September
0.01in
Wettest Day 15 September, 2026
0.03in
Wet Days September
3/20 (15%)

Climate (2021–2025)

Adak Island, Adak Airport (236.7 miles)

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Annual Average 2021–2025
41.7in
Monthly Average 2021–2026
3.2in
Daily Average 2021–2026
0.1in
Wettest Day 19 November, 2023
2.3in

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