The highest day temperature in July 2024 was 86°F. The lowest night temperature was 62°F. The average values for day and night temperatures during July were 80.2°F и 70.5°F respectivly.

The average sea surface temperature in July 2024 for Groton was 70.5°F. The maximum and minimum values were 63.8°F and 74.8°F respectively.

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

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

The average wind speed in July is 6.7 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 July is 8.0 hours.