Steptoe Butte State Park Rainfall Forecast

Today 29 May
5%
Sat 30 May
15%
Sun 31 May
5%
Mon 1 Jun
20%
Tue 2 Jun
No Rain
Wed 3 Jun
25%
Thu 4 Jun
5%

Steptoe Butte State Park Rainfall Statistics

May Rainfall

Pullman / Moscow Regional Airport (21.1 miles)

Total Rainfall 2026
12.7in
Daily Average 2026
0.1in
Wettest Day 13 March, 2026
1.8in
Wet Days 2026
47/149 (32%)
Total Rainfall April
2.4in
Daily Average April
0.1in
Wettest Day 15 April, 2026
0.7in
Wet Days April
9/30 (30%)
Total Rainfall May
0.9in
Daily Average May
0.03in
Wettest Day 13 May, 2026
0.3in
Wet Days May
5/29 (17%)

Climate (2010–Present)

Pullman / Moscow Regional Airport (21.1 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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