Umatilla National Forest Rainfall Forecast

Today 29 Mar
30%
Mon 30 Mar
35%
Tue 31 Mar
45%
Wed 1 Apr
95%
Thu 2 Apr
90%
Fri 3 Apr
25%
Sat 4 Apr
No Rain

Umatilla National Forest Rainfall Statistics

March Rainfall

Grant County Regional Airport (35.4 miles)

Total Rainfall 2026
5.7in
Daily Average 2026
0.1in
Wettest Day 8 February, 2026
1.1in
Wet Days 2026
21/88 (24%)
Total Rainfall February
2.7in
Daily Average February
0.1in
Wettest Day 8 February, 2026
1.1in
Wet Days February
9/31 (29%)
Total Rainfall March
1.7in
Daily Average March
0.1in
Wettest Day 2 March, 2026
0.6in
Wet Days March
7/29 (24%)

Climate (2010–Present)

Grant County Regional Airport (35.4 miles)

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Annual Average 2021–2025
16.5in
Monthly Average 2021–2026
1.4in
Daily Average 2021–2026
0.05in
Wettest Day 5 December, 2025
1.2in

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