Groton New London Ap, Connecticut
ID: USW00014707 Latitude: 41.3275 Longitude: -72.0494
Elevation: 9.8 feet ( 3.0 meters)
Source: NOAA Climate Normals 1991-2020
Precipitation Total: 39.31 in., 15.48 cm.
Monthly Data Table for Groton New London Ap, Connecticut
Monthly Data from NOAA Monthly Normals 2006-2020
Imperial Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°F |
39.3 |
40.3 |
46.9 |
56.6 |
65.6 |
73.8 |
80.5 |
79.6 |
73.9 |
64.1 |
53.8 |
44.7 |
Minimum Temperature |
°F |
23.9 |
24.8 |
30.9 |
39.4 |
49.5 |
58.5 |
66.0 |
64.2 |
57.5 |
47.1 |
37.1 |
29.8 |
Heating Degree Days |
°F |
1035.3 |
908.5 |
809.1 |
510.4 |
238.0 |
46.2 |
1.4 |
3.8 |
60.7 |
301.6 |
586.6 |
860.2 |
Cooling Degree Days |
°F |
0.0 |
0.0 |
0.0 |
0.4 |
7.0 |
80.7 |
257.0 |
217.7 |
81.6 |
10.2 |
0.1 |
0.0 |
Precipitation |
I |
2.5 |
2.2 |
3.2 |
3.2 |
3.3 |
3.5 |
3.3 |
2.6 |
3.3 |
3.8 |
2.9 |
3.3 |
Metric Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°C |
4.1 |
4.6 |
8.3 |
13.7 |
18.7 |
23.2 |
26.9 |
26.4 |
23.3 |
17.8 |
12.1 |
7.1 |
Minimum Temperature |
°C |
-4.5 |
-4.0 |
-0.6 |
4.1 |
9.7 |
14.7 |
18.9 |
17.9 |
14.2 |
8.4 |
2.8 |
-1.2 |
Heating Degree Days |
°C |
557.4 |
486.9 |
431.7 |
265.8 |
114.4 |
7.9 |
-17.0 |
-15.7 |
15.9 |
149.8 |
308.1 |
460.1 |
Cooling Degree Days |
°C |
-17.8 |
-17.8 |
-17.8 |
-17.6 |
-13.9 |
27.1 |
125.0 |
103.2 |
27.6 |
-12.1 |
-17.7 |
-17.8 |
Precipitation |
M |
6.4 |
5.5 |
8.1 |
8.1 |
8.4 |
8.8 |
8.5 |
6.7 |
8.3 |
9.7 |
7.4 |
8.3 |