Dubuque (IA) 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 Dubuque, Iowa, United States of America. These values are calculated using 30 years of data (1990–2020) to ensure accuracy.

Monthly hours of sunshine

Seasonal sunshine in Dubuque varies. It peaks at 307 hours in June and drops to 107 hours in December. The total annual amount of sun is 2464 hours.

Daily hours of sunshine

For those who appreciate different seasons, Dubuque serves as an ideal destination. Expect longer, more sun-filled days in June with an average of 10.2 hours of sunshine daily, and embrace the darker days in December, offering only 3.6 hours of daily sunlight.

Dubuque enjoys an average of 2464 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

The city of Rome, Italy, experiences 2470 hours of sunshine annually, adding to its charm as a year-round tourist destination.

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

The climate in San Francisco, USA, includes 3072 hours of sunshine annually, thanks to its mild coastal weather.

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

July, Dubuque’s wettest month, receives 144 mm (5.7 in) of rainfall and has a maximum daytime temperature of 29°C (84°F). During the driest month January you can expect a temperature of -3°C (27°F).

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