Terreton Rainfall Forecast

Today 20 Sep
10%
Mon 21 Sep
No Rain
Tue 22 Sep
No Rain
Wed 23 Sep
15%
Thu 24 Sep
No Rain
Fri 25 Sep
No Rain
Sat 26 Sep
5%

Terreton Rainfall Statistics

September Rainfall

Idaho Falls Regional Airport (28.6 miles)

Total Rainfall 2026
5.8in
Daily Average 2026
0.02in
Wettest Day 30 May, 2026
1.5in
Wet Days 2026
51/263 (19%)
Total Rainfall August
0.4in
Daily Average August
0.01in
Wettest Day 13 August, 2026
0.2in
Wet Days August
6/31 (19%)
Total Rainfall September
1in
Daily Average September
0.1in
Wettest Day 17 September, 2026
0.6in
Wet Days September
3/20 (15%)

Climate (2021–2025)

Idaho Falls Regional Airport (28.6 miles)

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Annual Average 2021–2025
9.2in
Monthly Average 2021–2026
0.7in
Daily Average 2021–2026
0.02in
Wettest Day 30 May, 2026
1.5in

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