Average data for 10 years
1 May
Wednesday
+14°
+10°
2 May
Thursday
+14°
+10°
3 May
Friday
+14°
+10°
4 May
Saturday
+14°
+10°
5 May
Sunday
+15°
+10°
6 May
Monday
+16°
+11°
7 May
Tuesday
+16°
+11°
8 May
Wednesday
+14°
+11°
9 May
Thursday
+16°
+12°
10 May
Friday
+16°
+11°
11 May
Saturday
+16°
+11°
12 May
Sunday
+15°
+11°
13 May
Monday
+15°
+10°
14 May
Tuesday
+17°
+13°
15 May
Wednesday
+16°
+13°
16 May
Thursday
+17°
+14°
17 May
Friday
+17°
+13°
18 May
Saturday
+17°
+13°
19 May
Sunday
+18°
+13°
20 May
Monday
+19°
+13°
21 May
Tuesday
+16°
+13°
22 May
Wednesday
+16°
+13°
23 May
Thursday
+19°
+14°
24 May
Friday
+17°
+14°
25 May
Saturday
+20°
+14°
26 May
Sunday
+20°
+16°
27 May
Monday
+18°
+15°
28 May
Tuesday
+19°
+14°
29 May
Wednesday
+22°
+15°
30 May
Thursday
+21°
+17°
31 May
Friday
+20°
+15°
Cities with similar weather in May
Canada
Toronto
Canada
Vancouver
United States
Chicago
Poland
Gdansk
United States
Seattle
May in Groton is the rainiest and the cloudiest month of the year. In May, the weather in Groton is typically warm. Average daily high temperature in May is about 17 degrees above zero. On average, Groton has 13 rainy, 7 sunny, 6 partly cloudy, and 5 cloudy days in May. The rains are usually moderate.