Average Monthly Sunshine in Harlan (IA)

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

Monthly hours of sunshine

Seasonal sunshine in Harlan varies. It peaks at 335 hours in July and drops to 133 hours in December. The total annual amount of sun is 2730 hours.

Daily hours of sunshine

In Harlan, summer days are longer and more sunny, with daily sunshine hours peaking at 11.2 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.4 hours.

Harlan’s total hours of sunshine compared to other major cities

Harlan enjoys an average of 2730 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.

Boston, USA, enjoys 2629 hours of sunshine annually, with distinct seasons and many bright, sunny days.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 2520 hours of sunshine annually.

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

Other climate information

August, Harlan’s wettest month, receives 93 mm of rainfall and has a maximum daytime temperature of 28°C. During the driest month January you can expect a temperature of -1°C.

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