Umatilla National Forest Rainfall Forecast

Today 13 Apr
85%
Tue 14 Apr
80%
Wed 15 Apr
100%
Thu 16 Apr
75%
Fri 17 Apr
5%
Sat 18 Apr
20%
Sun 19 Apr
45%

Umatilla National Forest Rainfall Statistics

April Rainfall

Grant County Regional Airport (35.4 miles)

Total Rainfall 2026
6.7in
Daily Average 2026
0.1in
Wettest Day 8 February, 2026
1.1in
Wet Days 2026
25/103 (24%)
Total Rainfall March
2.3in
Daily Average March
0.1in
Wettest Day 2 March, 2026
0.6in
Wet Days March
9/31 (29%)
Total Rainfall April
0.4in
Daily Average April
0.04in
Wettest Day 1 April, 2026
0.3in
Wet Days April
2/13 (15%)

Climate (2010–Present)

Grant County Regional Airport (35.4 miles)

Take a look at our website widgetsAvailable free! Find Out More

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

Get WillyWeather+ to remove ads