Prosser Rainfall Forecast

Today 18 Aug
No Rain
Wed 19 Aug
No Rain
Thu 20 Aug
No Rain
Fri 21 Aug
15%
Sat 22 Aug
5%
Sun 23 Aug
No Rain
Mon 24 Aug
No Rain

Prosser Rainfall Statistics

August Rainfall

Sunnyside Municipal Airport (12.4 miles)

Total Rainfall 2026
6.9in
Daily Average 2026
0.1in
Wettest Day 9 August, 2026
3.3in
Wet Days 2026
21/230 (9%)
Total Rainfall July
0.04in
Daily Average July
0in
Wettest Day 16 July, 2026
0.04in
Wet Days July
1/31 (3%)
Total Rainfall August
3.6in
Daily Average August
0.2in
Wettest Day 9 August, 2026
3.3in
Wet Days August
2/18 (11%)

Climate (2021–2025)

Sunnyside Municipal Airport (12.4 miles)

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Annual Average 2021–2025
21.3in
Monthly Average 2021–2026
2in
Daily Average 2021–2026
0.1in
Wettest Day 7 June, 2023
3.6in

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