Millersylvania State Park Rainfall Forecast

Today 18 May
5%
Tue 19 May
5%
Wed 20 May
No Rain
Thu 21 May
No Rain
Fri 22 May
No Rain
Sat 23 May
No Rain
Sun 24 May
25%

Millersylvania State Park Rainfall Statistics

May Rainfall

Olympia, Olympia Airport (3.7 miles)

Total Rainfall 2026
21.4in
Daily Average 2026
0.2in
Wettest Day 11 March, 2026
2.2in
Wet Days 2026
59/138 (43%)
Total Rainfall April
2.2in
Daily Average April
0.1in
Wettest Day 14 April, 2026
1.2in
Wet Days April
8/30 (27%)
Total Rainfall May
1.2in
Daily Average May
0.1in
Wettest Day 15 May, 2026
0.7in
Wet Days May
4/18 (22%)

Climate (2010–Present)

Olympia, Olympia Airport (3.7 miles)

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Annual Average 2021–2025
49.5in
Monthly Average 2021–2026
4.1in
Daily Average 2021–2026
0.1in
Wettest Day 6 January, 2022
4in

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