San Dimas (CA) 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 San Dimas, California, United States of America. The figures are based on a 30-year period (1990–2020) to provide a reliable average.

Monthly hours of sunshine

If you're visiting San Dimas, timing is key. In July, you can enjoy up to 369 hours of sunshine, while the shorter days of January provide just 198 hours. The total annual amount of sun is 3279 hours.

Daily hours of sunshine

Seasonal changes in sunshine hours are quite obvious in San Dimas. While July receives considerable daily sunshine with up to 12.3 hours, January marks the darkest time of the year, where sunshine is scarce with only 6.6 hours of sunlight per day.

San Dimas enjoys an average of 3279 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

In contrast, London, UK, receives only about 1659 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.

Perth, Australia, enjoys 3180 hours of sunshine annually, the highest among major Australian cities.

December, San Dimas’s wettest month, receives 0.4 mm (0.02 in) of rainfall and has a maximum daytime temperature of 19°C (66°F). During the driest month June you can expect a temperature of 30°C (86°F).

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