Prosser Rainfall Forecast

Today 30 Dec
No Rain
Wed 31 Dec
No Rain
Thu 1 Jan
55%
Fri 2 Jan
50%
Sat 3 Jan
40%
Sun 4 Jan
20%
Mon 5 Jan
20%

Prosser Rainfall Statistics

December Rainfall

Sunnyside Municipal Airport (12.4 miles)

Total Rainfall 2025
4.8in
Daily Average 2025
0.03in
Wettest Day 18 December, 2025
0.7in
Wet Days 2025
28/364 (8%)
Total Rainfall November
–
Daily Average November
–
Wettest Day 31 December, 2025
–
Wet Days November
–
Total Rainfall December
1.2in
Daily Average December
0.1in
Wettest Day 18 December, 2025
0.7in
Wet Days December
8/30 (27%)

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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