Groton Weather: January
 |
Average Day Temperature: | 35.3°F |
|
Average Night Temperature: | 28.6°F |
|
Sea Water Temperature: | 42.0°F |
|
Number of Sunny Days: | 10 days |
| Sunshine Hours: | 9.2 - 10.0 hours | |
|
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.2 in | |
| detailed information | ||
forecast
| Groton |
Temperature
| Groton |
Air Temperature in January, °F
The highest day temperature in January 2025 was 46°F. The lowest night temperature was 12°F. The average values for day and night temperatures during January were 32.1°F и 25.4°F respectivly.
Groton Water Sea Temperature in January, °F
The average sea surface temperature in January 2025 for Groton was 40.1°F. The maximum and minimum values were 37.0°F and 44.0°F respectively.
You can expect various weather conditions during January. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in January, in
Precipitation total in January for Groton is 1.2 in.
The average wind speed in January is 10.1 mph. It makes January the most windy month of the year for Groton.
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 January is 5.0 hours.
Groton on the Weather Map
| Chicago |  |
0 |
| Hawaii |  |
+78 |
| Honolulu | |
+78 |
| Houston | |
+46 |
| 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 |
| 0300 |  |
12°F | S 10 mph |
| 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 |