John Day Rainfall Forecast

Today 13 Sep
25%
Sun 14 Sep
75%
Mon 15 Sep
No Rain
Tue 16 Sep
No Rain
Wed 17 Sep
5%
Thu 18 Sep
5%
Fri 19 Sep
15%

John Day Rainfall Statistics

September Rainfall

Grant County Regional Airport (0.6 miles)

Total Rainfall 2025
13.7in
Daily Average 2025
0.1in
Wettest Day 21 July, 2025
1.1in
Wet Days 2025
67/256 (26%)
Total Rainfall August
0.6in
Daily Average August
0.02in
Wettest Day 16 August, 2025
0.2in
Wet Days August
5/31 (16%)
Total Rainfall September
1in
Daily Average September
0.1in
Wettest Day 10 September, 2025
0.8in
Wet Days September
3/13 (23%)

Climate (2010–Present)

Grant County Regional Airport (0.6 miles)

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Annual Average 2020–2024
14.6in
Monthly Average 2020–2025
1.3in
Daily Average 2020–2025
0.04in
Wettest Day 21 July, 2025
1.1in

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