San Juan Island - Mosquito Bay Rainfall Forecast

Today 1 Aug
70%
Sun 2 Aug
No Rain
Mon 3 Aug
No Rain
Tue 4 Aug
No Rain
Wed 5 Aug
No Rain
Thu 6 Aug
No Rain
Fri 7 Aug
No Rain

San Juan Island - Mosquito Bay Rainfall Statistics

August Rainfall

Friday Harbor Airport (7.5 miles)

Total Rainfall 2026
10.2in
Daily Average 2026
0.05in
Wettest Day 12 January, 2026
0.8in
Wet Days 2026
68/213 (32%)
Total Rainfall July
0.8in
Daily Average July
0.03in
Wettest Day 16 July, 2026
0.3in
Wet Days July
5/31 (16%)
Total Rainfall August
–
Daily Average August
–
Wettest Day 1 August, 2026
–
Wet Days August
–

Climate (2021–2025)

Friday Harbor Airport (7.5 miles)

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Annual Average 2021–2025
20.6in
Monthly Average 2021–2026
1.8in
Daily Average 2021–2026
0.1in
Wettest Day 15 November, 2021
1.9in

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