Glastonbury (CT) Sunshine Hours by Month

Sunshine plays a big role in understanding the climate of a city. This page shows the total number of hours of direct sunlight per month and the average hours per day in Glastonbury, Connecticut, United States of America. Long-term data from 1990 to 2020 was used to calculate these averages.

Monthly hours of sunshine

Sunshine in Glastonbury varies greatly throughout the year. The sunniest month, July, reaches an impressive 293 hours, while November, the darkest month, offers only 139 hours. The total annual amount of sun is 2579 hours.

Daily hours of sunshine

For those who appreciate different seasons, Glastonbury serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.8 hours of sunshine daily, and embrace the darker days in November, offering only 4.6 hours of daily sunlight.

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%.

Glastonbury enjoys an average of 2579 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Athens, Greece, enjoys 2769 hours of sunshine each year, making it one of the sunniest destinations in the Mediterranean region.

In contrast, Reykjavík, Iceland, receives only about 1330 hours of sunshine per year, known for its frequently overcast and rainy skies.

In Chicago, USA, the annual sunshine averages 2520 hours, contributing to its humid continental climate.

Adelaide, Australia, enjoys 2770 hours of sunshine annually, with long, sunny summers.

June, Glastonbury’s wettest month, receives 109 mm (4.3 in) of rainfall and has a maximum daytime temperature of 26°C (79°F). During the driest month January you can expect a temperature of 3°C (37°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Glastonbury Precipitation page.