Prosser Rainfall Forecast

Today 2 Sep
No Rain
Wed 3 Sep
5%
Thu 4 Sep
5%
Fri 5 Sep
15%
Sat 6 Sep
35%
Sun 7 Sep
20%
Mon 8 Sep
25%

Prosser Rainfall Statistics

September Rainfall

Sunnyside Municipal Airport (12.4 miles)

Total Rainfall 2025
3.5in
Daily Average 2025
0.03in
Wettest Day 19 February, 2025
0.5in
Wet Days 2025
20/245 (8%)
Total Rainfall August
–
Daily Average August
–
Wettest Day 3 September, 2025
–
Wet Days August
–
Total Rainfall September
–
Daily Average September
–
Wettest Day 3 September, 2025
–
Wet Days September
–

Climate (2015–Present)

Sunnyside Municipal Airport (12.4 miles)

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Annual Average 2020–2024
22.1in
Monthly Average 2020–2025
2in
Daily Average 2020–2025
0.1in
Wettest Day 7 June, 2023
3.6in

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