Groton Rainfall Forecast

Today 13 Aug
100%
Fri 14 Aug
No Rain
Sat 15 Aug
5%
Sun 16 Aug
35%
Mon 17 Aug
70%
Tue 18 Aug
5%
Wed 19 Aug
10%

Groton Rainfall Statistics

August Rainfall

Fitchburg, Fitchburg Municipal Airport (9.9 miles)

Total Rainfall 2026
24.5in
Daily Average 2026
0.1in
Wettest Day 3 August, 2026
4in
Wet Days 2026
78/225 (35%)
Total Rainfall July
5.8in
Daily Average July
0.2in
Wettest Day 29 July, 2026
2.5in
Wet Days July
10/31 (32%)
Total Rainfall August
5in
Daily Average August
0.5in
Wettest Day 3 August, 2026
4in
Wet Days August
3/13 (23%)

Climate (2021–2025)

Fitchburg, Fitchburg Municipal Airport (9.9 miles)

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Annual Average 2021–2025
43.2in
Monthly Average 2021–2026
3.5in
Daily Average 2021–2026
0.1in
Wettest Day 11 September, 2023
5.1in

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