Louisville (CO) Sunshine Hours by Month

Sunshine is key to understanding how a place experiences its seasons. This page shows the total number of hours of direct sunlight per month and the average hours per day in Louisville, Colorado, United States of America. This average is based on long-term data collected between 1990 and 2020.

Monthly hours of sunshine

Seasonal sunshine in Louisville varies. It peaks at 323 hours in July and drops to 195 hours in November. The total annual amount of sun is 3102 hours.

Daily hours of sunshine

For those who appreciate different seasons, Louisville serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.8 hours of sunshine daily, and embrace the darker days in November, offering only 6.5 hours of daily sunlight.

Average percent of sunshine

On average the sun shines 73% of the time during the day in September, the highest percentage of any month. May has the lowest percentage at 65%.

Louisville enjoys an average of 3102 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 contrast, Juneau, Alaska, receives only about 1523 hours of sunshine per year and is known for its very short days in winter and frequently overcast conditions.

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

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

May, Louisville’s wettest month, receives 49 mm (1.9 in) of rainfall and has a maximum daytime temperature of 21°C (70°F). During the driest month January you can expect a temperature of 8°C (46°F).

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