The highest day temperature in February 2025 was 52°F. The lowest night temperature was 13°F. The average values for day and night temperatures during February were 34.7°F и 26.7°F respectivly.

The average sea surface temperature in February 2025 for Groton was 36.4°F. The maximum and minimum values were 34.6°F and 38.0°F respectively.

You can expect various weather conditions during February. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in February for Groton is 1.0 in. It makes february the least rainy month of the year.

The average wind speed in February is 9.6 mph. It makes February one of the most windy months 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 February is 5.3 hours.