Average Monthly Sunshine hours in Rialto (CA)
This graph shows the average number of hours per month that Rialto 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 369 hours of sunshine.
- January has on average the lowest amount of sunshine with 198 hours.
- On average, the total annual amount of sun is 3277 hours.
Forecast: is it sunny in Rialto (CA)?
partly cloudy and no rain
almost clear and no rain
almost clear and no rain