Yellowstone Rainfall Forecast

Today 13 Sep
50%
Sun 14 Sep
10%
Mon 15 Sep
50%
Tue 16 Sep
30%
Wed 17 Sep
5%
Thu 18 Sep
No Rain
Fri 19 Sep
20%

Yellowstone Rainfall Statistics

September Rainfall

Yellowstone Lake (5 miles)

Total Rainfall 2025
11.8in
Daily Average 2025
0.1in
Wettest Day 18 May, 2025
0.8in
Wet Days 2025
77/256 (30%)
Total Rainfall August
1.1in
Daily Average August
0.04in
Wettest Day 28 August, 2025
0.7in
Wet Days August
8/31 (26%)
Total Rainfall September
0.8in
Daily Average September
0.1in
Wettest Day 7 September, 2025
0.8in
Wet Days September
3/13 (23%)

Climate (2010–Present)

Yellowstone Lake (5 miles)

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Annual Average 2020–2024
21.7in
Monthly Average 2020–2025
1.8in
Daily Average 2020–2025
0.1in
Wettest Day 21 September, 2023
1.2in

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