West Sister Rainfall Forecast

Today 28 Sep
95%
Tue 29 Sep
90%
Wed 30 Sep
No Rain
Thu 1 Oct
No Rain
Fri 2 Oct
15%
Sat 3 Oct
20%
Sun 4 Oct
25%

West Sister Rainfall Statistics

September Rainfall

Pease Air Force Base / Portsmouth (6.8 miles)

Total Rainfall 2026
19.5in
Daily Average 2026
0.1in
Wettest Day 30 May, 2026
1.6in
Wet Days 2026
97/271 (36%)
Total Rainfall August
1.9in
Daily Average August
0.1in
Wettest Day 3 August, 2026
1.4in
Wet Days August
5/31 (16%)
Total Rainfall September
1.9in
Daily Average September
0.1in
Wettest Day 13 September, 2026
0.6in
Wet Days September
12/28 (43%)

Climate (2021–2025)

Pease Air Force Base / Portsmouth (6.8 miles)

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Annual Average 2021–2025
36in
Monthly Average 2021–2026
2.9in
Daily Average 2021–2026
0.1in
Wettest Day 18 September, 2023
2.9in

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