Average Monthly Sunshine hours in Merrillville (IN)
This graph shows the average number of hours per month that Merrillville receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.
- On average, July is the sunniest month with 319 hours of sunshine.
- December has on average the lowest amount of sunshine with 107 hours.
- On average, the total annual amount of sun is 2520 hours.
Forecast: is it sunny in Merrillville (IN)?
overcast and heavy rain
almost clear and no rain
clear and no rain