Big Island CCC Tank Rainfall Forecast

Today 20 Aug
25%
Fri 21 Aug
40%
Sat 22 Aug
50%
Sun 23 Aug
25%
Mon 24 Aug
15%
Tue 25 Aug
15%
Wed 26 Aug
15%

Big Island CCC Tank Rainfall Statistics

August Rainfall

Grants, Grants-Milan Municipal Airport (64 miles)

Total Rainfall 2026
4.4in
Daily Average 2026
0.02in
Wettest Day 13 February, 2026
0.6in
Wet Days 2026
21/232 (9%)
Total Rainfall July
1.4in
Daily Average July
0.04in
Wettest Day 25 July, 2026
0.4in
Wet Days July
7/31 (23%)
Total Rainfall August
0.4in
Daily Average August
0.03in
Wettest Day 12 August, 2026
0.3in
Wet Days August
3/20 (15%)

Climate (2021–2025)

Grants, Grants-Milan Municipal Airport (64 miles)

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Annual Average 2021–2025
8.3in
Monthly Average 2021–2026
0.7in
Daily Average 2021–2026
0.02in
Wettest Day 21 June, 2024
2in

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