The highest day temperature in February 2026 was 42°F. The lowest night temperature was -4°F. The average values for day and night temperatures during February were 31.4°F и 18.6°F respectivly.

The average sea surface temperature in February 2026 for Stonington was 33.5°F. The maximum and minimum values were 32.2°F and 35.2°F respectively.

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

Precipitation total in February for Stonington is 0.9 in. It makes february the least rainy month of the year.

The average wind speed in February is 9.8 mph. It makes February one of the most windy months of the year for Stonington.

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 Stonington in February is 5.6 hours.