Thames River - Cow Point Rainfall Forecast

Today 16 May
No Rain
Sun 17 May
5%
Mon 18 May
No Rain
Tue 19 May
5%
Wed 20 May
45%
Thu 21 May
40%
Fri 22 May
15%

Thames River - Cow Point Rainfall Statistics

May Rainfall

Groton / New London, Groton / New London Airport (6.2 miles)

Total Rainfall 2026
9.3in
Daily Average 2026
0.1in
Wettest Day 14 May, 2026
0.9in
Wet Days 2026
41/136 (30%)
Total Rainfall April
1.8in
Daily Average April
0.1in
Wettest Day 17 April, 2026
0.7in
Wet Days April
8/30 (27%)
Total Rainfall May
1.8in
Daily Average May
0.1in
Wettest Day 14 May, 2026
0.9in
Wet Days May
7/16 (44%)

Climate (2010–Present)

Groton / New London, Groton / New London Airport (6.2 miles)

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Annual Average 2021–2025
37.8in
Monthly Average 2021–2026
3.1in
Daily Average 2021–2026
0.1in
Wettest Day 11 December, 2024
3in

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