Weather in Groton: May
Average day temperature: | 64.2°F | |
Average night temperature: | 51.0°F | |
Sea water temperature: | 51.8°F | |
Number of sunny days: | 11 days | |
Day length: | 14.0 - 14.9 hours | |
Number of rainy days: | 3 days | |
Precipitation totals: | 1.5 in. | |
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14 days
forecast
forecast
Groton |
sea water
temperature
temperature
Groton |
Air temperature in May, °F
Show year:
2023
2022
2021
The highest day temperature during May of 2023 was 76°F. At the same time the lowest night temperature was 41°F. Day and night temperature averages during May were 66.0°F and 49.9°F.
Sea water temperature in Groton in May, °F
Show year:
2023
2022
2021
The average sea water temperature in May of 2023 was 53.6°F. The highest and lowest sea temperatures during the month were 58.8°F and 49.1°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Groton in May is 1.5 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 8.0 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.4.
Best time for vacation in Groton
Groton on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Groton
Local time: 01:24
May 19, sunday
0300
54°F
S
12 mph
12 mph
0600
54°F
SW
11 mph
11 mph
0900
57°F
S
12 mph
12 mph
1200
59°F
SW
14 mph
14 mph
1500
57°F
SW
13 mph
13 mph
1800
57°F
SW
12 mph
12 mph
2100
55°F
SW
9 mph
9 mph
May 20, monday
0000
54°F
SW
9 mph
9 mph