Umatilla Rainfall Forecast

Today 17 Mar
15%
Wed 18 Mar
5%
Thu 19 Mar
No Rain
Fri 20 Mar
10%
Sat 21 Mar
10%
Sun 22 Mar
5%
Mon 23 Mar
15%

Umatilla Rainfall Statistics

March Rainfall

Hermiston, Hermiston Municipal Airport (6.8 miles)

Total Rainfall 2026
2.4in
Daily Average 2026
0.03in
Wettest Day 8 February, 2026
0.7in
Wet Days 2026
18/76 (24%)
Total Rainfall February
1.8in
Daily Average February
0.1in
Wettest Day 8 February, 2026
0.7in
Wet Days February
9/28 (32%)
Total Rainfall March
0.2in
Daily Average March
0.02in
Wettest Day 4 March, 2026
0.2in
Wet Days March
4/17 (24%)

Climate (2010–Present)

Hermiston, Hermiston Municipal Airport (6.8 miles)

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Annual Average 2021–2025
9.4in
Monthly Average 2021–2026
0.8in
Daily Average 2021–2026
0.03in
Wettest Day 5 May, 2024
1.1in

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