Big V Reservoir Rainfall Forecast

Today 6 Sep
5%
Mon 7 Sep
35%
Tue 8 Sep
No Rain
Wed 9 Sep
No Rain
Thu 10 Sep
No Rain
Fri 11 Sep
No Rain
Sat 12 Sep
25%

Big V Reservoir Rainfall Statistics

September Rainfall

Casper, Natrona County International Airport (34.2 miles)

Total Rainfall 2026
6.4in
Daily Average 2026
0.03in
Wettest Day 13 August, 2026
1.3in
Wet Days 2026
46/249 (18%)
Total Rainfall August
2in
Daily Average August
0.1in
Wettest Day 13 August, 2026
1.3in
Wet Days August
6/31 (19%)
Total Rainfall September
0.01in
Daily Average September
0in
Wettest Day 3 September, 2026
0.01in
Wet Days September
1/6 (17%)

Climate (2021–2025)

Casper, Natrona County International Airport (34.2 miles)

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Annual Average 2021–2025
13in
Monthly Average 2021–2026
1in
Daily Average 2021–2026
0.03in
Wettest Day 12 October, 2023
1.3in

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