Groton (CT) Sunshine Hours by Month
When exploring climate, sunlight hours tell an important story. This page shows the total number of hours of direct sunlight per month and the average hours per day in Groton, Connecticut, United States of America. These averages rely on historical data collected over 30 years, from 1990 to 2020.
Monthly hours of sunshine
Those who love seasonal contrasts will appreciate Groton. Expect long, bright days with 293 hours in July and darker periods with just 139 hours in November. The total annual amount of sun is 2579 hours.
Daily hours of sunshine
This means the city can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.8 hours of sunshine daily. In contrast, the city experiences much darker days in November, with only 4.6 hours of sunlight per day.
Average percent of sunshine
On average the sun shines 64% of the time during the day in July, the highest percentage of any month. November has the lowest percentage at 47%.
Groton vs Major Cities: Sunshine Compared
Groton enjoys an average of 2579 hours of sunshine annually. Let’s compare this with some popular tourist destinations:
Seville, Spain, enjoys an impressive 2920 hours of sunshine per year, making it an ideal destination even in winter.
In contrast, Brussels, Belgium, receives only about 1590 hours of sunshine per year, known for its frequently overcast and rainy skies.
Boston, USA, enjoys 2629 hours of sunshine annually, with distinct seasons and many bright, sunny days.
In Brisbane, Australia, the annual sunshine averages 2999 hours, making it one of Australia’s sunniest cities.
Related Climate Data for Groton
December, Groton’s wettest month, receives 98 mm (3.9 in) of rainfall and has a maximum daytime temperature of 7°C (45°F). During the driest month November you can expect a temperature of 12°C (54°F).
For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Groton Precipitation page.
