Hampton Harbor - Knowles Island Rainfall Forecast

Today 11 Sep
No Rain
Sat 12 Sep
No Rain
Sun 13 Sep
50%
Mon 14 Sep
10%
Tue 15 Sep
5%
Wed 16 Sep
20%
Thu 17 Sep
25%

Hampton Harbor - Knowles Island Rainfall Statistics

September Rainfall

Pease Air Force Base / Portsmouth (13 miles)

Total Rainfall 2026
18.1in
Daily Average 2026
0.1in
Wettest Day 30 May, 2026
1.6in
Wet Days 2026
90/254 (35%)
Total Rainfall August
1.9in
Daily Average August
0.1in
Wettest Day 3 August, 2026
1.4in
Wet Days August
5/31 (16%)
Total Rainfall September
0.6in
Daily Average September
0.1in
Wettest Day 3 September, 2026
0.3in
Wet Days September
5/11 (45%)

Climate (2021–2025)

Pease Air Force Base / Portsmouth (13 miles)

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Annual Average 2021–2025
36in
Monthly Average 2021–2026
2.9in
Daily Average 2021–2026
0.1in
Wettest Day 18 September, 2023
2.9in

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