The highest day temperature in February 2026 was 41°F. The lowest night temperature was 6°F. The average values for day and night temperatures during February were 31.2°F и 27.7°F respectivly.

The average sea surface temperature in February 2026 for Charlestown was 34.1°F. The maximum and minimum values were 33.2°F and 35.6°F respectively.

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

Precipitation total in February for Charlestown is 1.0 in.

The average wind speed in February is 12.3 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 Charlestown in February is 5.6 hours.