San Juan Island - Roche Harbor Rainfall Forecast
- 15%
- 65%
- 95%
- 90%
- 50%
- 65%
- 85%
San Juan Island - Roche Harbor Rainfall Statistics
February Rainfall
Friday Harbor Airport (8.1 miles)
Total Rainfall February
1inDaily Average February
0.1inWettest Day 1 February, 2026
0.3inWet Days February
7/20 (35%)
Climate (2010–Present)
Friday Harbor Airport (8.1 miles)
Annual Average 2021–2025
20.6inMonthly Average 2021–2026
1.7inDaily Average 2021–2026
0.1inWettest Day 15 November, 2021
1.9in