Big Island CCC Tank Rainfall Forecast

Today 10 Sep
No Rain
Fri 11 Sep
5%
Sat 12 Sep
5%
Sun 13 Sep
30%
Mon 14 Sep
50%
Tue 15 Sep
45%
Wed 16 Sep
40%

Big Island CCC Tank Rainfall Statistics

September Rainfall

Grants, Grants-Milan Municipal Airport (64 miles)

Total Rainfall 2026
5.2in
Daily Average 2026
0.02in
Wettest Day 13 February, 2026
0.6in
Wet Days 2026
29/253 (11%)
Total Rainfall August
1in
Daily Average August
0.03in
Wettest Day 20 August, 2026
0.3in
Wet Days August
9/31 (29%)
Total Rainfall September
0.3in
Daily Average September
0.03in
Wettest Day 4 September, 2026
0.2in
Wet Days September
2/10 (20%)

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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