Groton Weather: December
 |
Average Day Temperature: | 40.7°F |
|
Average Night Temperature: | 34.6°F |
|
Sea Water Temperature: | 48.8°F |
|
Number of Sunny Days: | 11 days |
| Sunshine Hours: | 9.2 - 9.4 hours | |
|
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.5 in | |
| detailed information | ||
forecast
| Groton |
Temperature
| Groton |
Air Temperature in December, °F
The highest day temperature in December 2024 was 58°F. The lowest night temperature was 10°F. The average values for day and night temperatures during December were 38.5°F и 32.7°F respectivly.
Groton Water Sea Temperature in December, °F
The average sea surface temperature in December 2024 for Groton was 48.0°F. The maximum and minimum values were 43.6°F and 53.2°F respectively.
You can expect various weather conditions during December. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in December, in
Precipitation total in December for Groton is 1.5 in. It makes december the most rainy month of the year.
The average wind speed in December is 9.6 mph.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Groton in December is 4.9 hours.
Groton on the Weather Map
| Chicago |  |
-2 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston | |
+44 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach |  |
+80 |
| New York | |
+18 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
| 0600 |  |
10°F | S 6 mph |
| 0900 |  |
16°F | S 3 mph |
| 1200 | |
24°F | N 6 mph |
| 1500 | |
26°F | NE 7 mph |
| 1800 |  |
26°F | N 4 mph |
| 2100 | |
28°F | N 4 mph |
| 0000 | |
30°F | N 2 mph |
| 0300 | |
32°F | N 1 mph |