Island Park Reservoir Rainfall Forecast

Today 2 May
No Rain
Sat 3 May
No Rain
Sun 4 May
40%
Mon 5 May
65%
Tue 6 May
30%
Wed 7 May
5%
Thu 8 May
25%

Island Park Reservoir Rainfall Statistics

May Rainfall

West Yellowstone (27.3 miles)

Total Rainfall 2025
0.6in
Daily Average 2025
0.1in
Wettest Day 29 April, 2025
0.3in
Wet Days 2025
4/122 (3%)
Total Rainfall April
0.6in
Daily Average April
0.1in
Wettest Day 29 April, 2025
0.3in
Wet Days April
4/30 (13%)
Total Rainfall May
–
Daily Average May
–
Wettest Day
–
Wet Days May
–

Climate (2010–Present)

West Yellowstone (27.3 miles)

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Annual Average 2020–2024
5.4in
Monthly Average 2020–2025
0.7in
Daily Average 2020–2025
0.03in
Wettest Day 2 August, 2022
1.8in

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