Weather in Groton in Winter
| December | January | February | ||||
| Average day temperature: | ||||||
| Average day temperature: | 41.7°F | 36.7°F | 38.0°F | |||
| Average night temperature: | ||||||
| Average night temperature: | 36.1°F | 30.8°F | 30.8°F | |||
| Sea water temperature: | ||||||
| Sea water temperature: | 48.9°F | 42.8°F | 40.0°F | |||
| Number of sunny days: | ||||||
| Number of sunny days: | 11 days | 10 days | 9 days | |||
| Day length: | ||||||
| Day length: | 9.2 - 9.4 h. | 9.2 - 10.0 h. | 10.1 - 11.3 h. | |||
| Number of rainy days: | ||||||
| Number of rainy days: | 3 days | 3 days | 2 days | |||
| Precipitation totals: | ||||||
| Precipitation totals: | 1.5 in. | 1.2 in. | 1.0 in. | |||
Day & Night air temperature, °F
Sea water temperature, °F
Precipitation total, in.
Sunny, partly cloudy and cloudy days
Wind speed, mph
Average sunny hours
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Groton
Groton on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Groton
Local time: 23:15
December 05, friday
0000
21°F
SE
17 mph
17 mph
0300
16°F
S
10 mph
10 mph
0600
14°F
S
6 mph
6 mph
0900
19°F
S
3 mph
3 mph
1200
27°F
N
6 mph
6 mph
1500
28°F
NE
7 mph
7 mph
1800
28°F
N
4 mph
4 mph
2100
30°F
N
4 mph
4 mph
