West Slope Rainfall Forecast

Today 5 Aug
35%
Wed 6 Aug
55%
Thu 7 Aug
15%
Fri 8 Aug
No Rain
Sat 9 Aug
No Rain
Sun 10 Aug
No Rain
Mon 11 Aug
No Rain

West Slope Rainfall Statistics

August Rainfall

Portland-Hillsboro Airport (9.3 miles)

Total Rainfall 2025
11.5in
Daily Average 2025
0.1in
Wettest Day 23 February, 2025
1in
Wet Days 2025
64/217 (29%)
Total Rainfall July
0in
Daily Average July
0in
Wettest Day 1 July, 2025
0in
Wet Days July
–
Total Rainfall August
0in
Daily Average August
0in
Wettest Day 1 August, 2025
0in
Wet Days August
–

Climate (2010–Present)

Portland-Hillsboro Airport (9.3 miles)

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Annual Average 2020–2024
34.7in
Monthly Average 2020–2025
2.8in
Daily Average 2020–2025
0.1in
Wettest Day 26 December, 2022
2.5in

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