Lower Monumental State Airport Rainfall Forecast

Today 15 May
50%
Fri 16 May
40%
Sat 17 May
65%
Sun 18 May
30%
Mon 19 May
25%
Tue 20 May
5%
Wed 21 May
10%

Lower Monumental State Airport Rainfall Statistics

May Rainfall

Walla Walla Regional Airport (33.6 miles)

Total Rainfall 2025
7in
Daily Average 2025
0.1in
Wettest Day 23 February, 2025
0.9in
Wet Days 2025
48/135 (36%)
Total Rainfall April
0.7in
Daily Average April
0.02in
Wettest Day 7 April, 2025
0.4in
Wet Days April
6/30 (20%)
Total Rainfall May
0.5in
Daily Average May
0.04in
Wettest Day 11 May, 2025
0.4in
Wet Days May
3/15 (20%)

Climate (2010–Present)

Walla Walla Regional Airport (33.6 miles)

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Annual Average 2020–2024
15.7in
Monthly Average 2020–2025
1.3in
Daily Average 2020–2025
0.04in
Wettest Day 20 May, 2020
1.7in

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