Johnson Lake Rainfall Forecast

Today 20 Apr
5%
Tue 21 Apr
70%
Wed 22 Apr
85%
Thu 23 Apr
30%
Fri 24 Apr
10%
Sat 25 Apr
10%
Sun 26 Apr
10%

Johnson Lake Rainfall Statistics

April Rainfall

Pullman / Moscow Regional Airport (38.5 miles)

Total Rainfall 2026
11.2in
Daily Average 2026
0.1in
Wettest Day 13 March, 2026
1.8in
Wet Days 2026
38/110 (35%)
Total Rainfall March
4.9in
Daily Average March
0.2in
Wettest Day 13 March, 2026
1.8in
Wet Days March
12/31 (39%)
Total Rainfall April
1.9in
Daily Average April
0.1in
Wettest Day 15 April, 2026
0.7in
Wet Days April
5/20 (25%)

Climate (2010–Present)

Pullman / Moscow Regional Airport (38.5 miles)

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Annual Average 2021–2025
18.5in
Monthly Average 2021–2026
1.6in
Daily Average 2021–2026
0.1in
Wettest Day 13 March, 2026
1.8in

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