Big Rock Park Rainfall Forecast

Today 27 Jul
50%
Tue 28 Jul
35%
Wed 29 Jul
25%
Thu 30 Jul
55%
Fri 31 Jul
15%
Sat 1 Aug
10%
Sun 2 Aug
No Rain

Big Rock Park Rainfall Statistics

July Rainfall

Custer, Custer County Airport (1.9 miles)

Total Rainfall 2026
10in
Daily Average 2026
0.05in
Wettest Day 30 May, 2026
2in
Wet Days 2026
54/208 (26%)
Total Rainfall June
1.4in
Daily Average June
0.05in
Wettest Day 21 June, 2026
0.6in
Wet Days June
10/30 (33%)
Total Rainfall July
3.2in
Daily Average July
0.1in
Wettest Day 8 July, 2026
0.8in
Wet Days July
11/27 (41%)

Climate (2021–2025)

Custer, Custer County Airport (1.9 miles)

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Annual Average 2021–2025
18.1in
Monthly Average 2021–2026
1.4in
Daily Average 2021–2026
0.05in
Wettest Day 12 October, 2023
2in

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