Weather in Groton: May
 |
Average day temperature: | 63.6°F |
| Average night temperature: | 51.4°F | |
 |
Sea water temperature: | 52.1°F |
 |
Number of sunny days: | 11 days |
| Day length: | 14.0 - 14.9 hours | |
 |
Number of rainy days: | 3 days |
| Precipitation totals: | 1.4 in. | |
| more information | ||
14 days
forecast
forecast
| Groton |
sea water
temperature
temperature
| Groton |
Air temperature in May, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
12
24
36
48
60
72
84
| Day temperature | Night temperature |
The highest day temperature during May of 2024 was 70°F. At the same time the lowest night temperature was 42°F. Daily and nightly averages during May were 61.1°F and 52.9°F.
Sea water temperature in Groton in May, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
43
46
49
52
55
58
61
64
The average sea water temperature in May of 2024 was 52.9°F. The highest and lowest sea temperatures during the month were 58.5°F and 47.5°F.
Sunny, partly cloudy and cloudy days
| Sunny days | |
| Partly cloudy days | |
| Cloudy days |
35%
32%
32%
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.3
0.5
0.8
1.0
1.3
1.6
1.8
1.5
1.1
1.4
1.3
1.3
1.5
1.3
1.5
1.3
1.2
1.5
1.1
1.4
1.3
1.3
1.5
1.3
1.4
1.5
1.3
1.2
Precipitation total value in Groton in May is 1.4 in. Other months of the year show relatively similar values.
Wind speed in May, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.7
3.5
5.2
6.9
8.7
10.4
12.1
9.6
9.0
7.7
7.6
6.9
6.7
7.4
9.3
10.0
9.6
10.1
9.6
9.0
7.7
7.6
6.9
6.7
7.4
8.1
9.3
10.0
9.6
10.1
The average wind speed value in May is 8.1 mph
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.4
2.9
4.3
5.8
7.2
8.7
10.1
4.9
6.6
6.4
7.3
8.0
8.2
8.4
6.6
6.3
5.4
5.0
4.9
6.6
6.4
7.3
8.0
8.2
8.4
8.0
6.6
6.3
5.4
5.0
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: 8.0.
Best time for vacation in Groton
Groton on a weather map
Leaflet | Tiles © Esri
Places in USA:
Name
°F
24 Hours Forecast
Groton
Local time: 01:51
April 19, saturday
0300
50°F
NE
11 mph
11 mph
0600
50°F
NE
9 mph
9 mph
0900
54°F
NE
11 mph
11 mph
1200
66°F
NE
16 mph
16 mph
1500
68°F
NE
15 mph
15 mph
1800
70°F
NE
13 mph
13 mph
2100
66°F
E
14 mph
14 mph
April 20, sunday
0000
64°F
E
12 mph
12 mph
