Average Monthly Sunshine in Old Lyme (CT)

The graphs on this page shows the average number of hours per month and per day that Old Lyme receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Those who love seasonal contrasts will appreciate Old Lyme. 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 2580 hours.

Daily hours of sunshine

Seasonal changes in sunshine hours are quite obvious. While July receives considerable daily sunshine with up to 9.8 hours, November marks the darkest time of the year, where sunshine is scarce with only 4.6 hours of sunlight per day.

Old Lyme’s total hours of sunshine compared to other major cities

Old Lyme enjoys an average of 2580 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Lisbon, Portugal, there are approximately 2801 hours of sunshine annually, highlighting its warm and sunny Mediterranean climate.

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

In Seoul, South Korea, there are approximately 2133 hours of sunshine per year, mostly during spring and autumn.

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

Other climate information

June, Old Lyme’s wettest month, receives 96 mm of rainfall and has a maximum daytime temperature of 25°C. During the driest month November you can expect a temperature of 12°C.

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