The highest day temperature in March 2024 was 54°F. The lowest night temperature was 25°F. The average values for day and night temperatures during March were 45.4°F и 37.4°F respectivly.

The average sea surface temperature in March 2024 for Groton was 41.5°F. The maximum and minimum values were 39.2°F and 44.2°F respectively.

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

Precipitation total in March for Groton is 1.5 in. It makes march one of the most rainy months of the year.

The average wind speed in March is 9.7 mph. This value is relatively stable throughout the year.

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 March is 6.2 hours.