Arapahoe Reservoir Rainfall Forecast

Today 22 Sep
25%
Wed 23 Sep
20%
Thu 24 Sep
No Rain
Fri 25 Sep
20%
Sat 26 Sep
No Rain
Sun 27 Sep
No Rain
Mon 28 Sep
20%

Arapahoe Reservoir Rainfall Statistics

September Rainfall

Riverton Regional Airport (29.8 miles)

Total Rainfall 2026
4.6in
Daily Average 2026
0.02in
Wettest Day 19 September, 2026
0.8in
Wet Days 2026
37/265 (14%)
Total Rainfall August
0.7in
Daily Average August
0.02in
Wettest Day 24 August, 2026
0.4in
Wet Days August
6/31 (19%)
Total Rainfall September
1.6in
Daily Average September
0.1in
Wettest Day 19 September, 2026
0.8in
Wet Days September
4/22 (18%)

Climate (2021–2025)

Riverton Regional Airport (29.8 miles)

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Annual Average 2021–2025
9.6in
Monthly Average 2021–2026
0.7in
Daily Average 2021–2026
0.03in
Wettest Day 11 October, 2023
1.1in

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