The highest day temperature in March 2025 was 60°F. The lowest night temperature was 15°F. The average values for day and night temperatures during March were 47.9°F и 36.4°F respectivly.

The average sea surface temperature in March 2025 for New London was 39.0°F. The maximum and minimum values were 36.4°F and 42.0°F respectively.

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

Precipitation total in March for New London is 1.3 in. This value is relatively stable throughout the year.

The average wind speed in March is 10.0 mph. It makes March one of the most windy months of the year for New London.

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 New London in March is 6.2 hours.