Average Monthly Sunshine hours in Rockville (MD)

This graph shows the average number of hours per month that Rockville receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

• On average, June is the sunniest month with 282 hours of sunshine.
• December has on average the lowest amount of sunshine with 130 hours.
• On average, the total annual amount of sun is 2520 hours.

Forecast: is it sunny in Rockville (MD)?

Fri   Nov 22

5°C | 0°C

W 25 km/h

9.9 mm

overcast and heavy rain

hourly forecast

Sat   Nov 23

11°C | 4°C

NW 25 km/h

broken clouds and no rain

hourly forecast

Sun   Nov 24

13°C | 5°C

W 18 km/h

partly cloudy and no rain

hourly forecast

5-Day Forecast 10-Day Forecast