Northwest Olympia Rainfall Forecast

Today 2 Sep
5%
Wed 3 Sep
No Rain
Thu 4 Sep
5%
Fri 5 Sep
5%
Sat 6 Sep
10%
Sun 7 Sep
10%
Mon 8 Sep
20%

Northwest Olympia Rainfall Statistics

September Rainfall

Olympia, Olympia Airport (5.6 miles)

Total Rainfall 2025
18.9in
Daily Average 2025
0.1in
Wettest Day 15 March, 2025
1.2in
Wet Days 2025
83/245 (34%)
Total Rainfall August
1in
Daily Average August
0.04in
Wettest Day 15 August, 2025
0.8in
Wet Days August
5/31 (16%)
Total Rainfall September
–
Daily Average September
–
Wettest Day 2 September, 2025
–
Wet Days September
–

Climate (2010–Present)

Olympia, Olympia Airport (5.6 miles)

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Annual Average 2020–2024
50.9in
Monthly Average 2020–2025
4.1in
Daily Average 2020–2025
0.1in
Wettest Day 6 January, 2022
4in

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