Johnson Lake Rainfall Forecast

Today 15 Sep
35%
Tue 16 Sep
5%
Wed 17 Sep
75%
Thu 18 Sep
70%
Fri 19 Sep
55%
Sat 20 Sep
20%
Sun 21 Sep
10%

Johnson Lake Rainfall Statistics

September Rainfall

Brookings, Brookings Municipal Airport (13.7 miles)

Total Rainfall 2025
16.1in
Daily Average 2025
0.1in
Wettest Day 29 June, 2025
2in
Wet Days 2025
59/258 (23%)
Total Rainfall August
2.9in
Daily Average August
0.1in
Wettest Day 6 August, 2025
0.8in
Wet Days August
11/31 (35%)
Total Rainfall September
0.5in
Daily Average September
0.05in
Wettest Day 2 September, 2025
0.5in
Wet Days September
1/15 (7%)

Climate (2010–Present)

Brookings, Brookings Municipal Airport (13.7 miles)

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Annual Average 2020–2024
15.6in
Monthly Average 2020–2025
1.4in
Daily Average 2020–2025
0.05in
Wettest Day 31 July, 2024
3.6in

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