Mammoth Rainfall Forecast

Today 4 May
10%
Tue 5 May
35%
Wed 6 May
15%
Thu 7 May
55%
Fri 8 May
10%
Sat 9 May
40%
Sun 10 May
20%

Mammoth Rainfall Statistics

May Rainfall

West Yellowstone (28 miles)

Total Rainfall 2026
0.7in
Daily Average 2026
0.1in
Wettest Day 15 April, 2026
0.4in
Wet Days 2026
4/124 (3%)
Total Rainfall April
0.7in
Daily Average April
0.1in
Wettest Day 15 April, 2026
0.4in
Wet Days April
4/30 (13%)
Total Rainfall May
–
Daily Average May
–
Wettest Day 4 May, 2026
–
Wet Days May
–

Climate (2010–Present)

West Yellowstone (28 miles)

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Annual Average 2021–2025
6.7in
Monthly Average 2021–2026
0.9in
Daily Average 2021–2026
0.04in
Wettest Day 2 August, 2022
1.8in

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