Flat Mountain Arm Rainfall Forecast

Today 21 May
55%
Thu 22 May
30%
Fri 23 May
30%
Sat 24 May
70%
Sun 25 May
25%
Mon 26 May
15%
Tue 27 May
30%

Flat Mountain Arm Rainfall Statistics

May Rainfall

Yellowstone Lake (11.2 miles)

Total Rainfall 2025
6.4in
Daily Average 2025
0.1in
Wettest Day 18 May, 2025
0.8in
Wet Days 2025
43/141 (30%)
Total Rainfall April
0.8in
Daily Average April
0.1in
Wettest Day 8 April, 2025
0.3in
Wet Days April
6/30 (20%)
Total Rainfall May
1.8in
Daily Average May
0.1in
Wettest Day 18 May, 2025
0.8in
Wet Days May
10/21 (48%)

Climate (2010–Present)

Yellowstone Lake (11.2 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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