United States of AmericaCountries United States of America Virginia Herndon Sun Percentage
United States of AmericaUnited States of America Virginia Herndon
Herndon
Average sun percentage
Climate ▸Forecast ▸December ▸January ▸
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Average percent of sunshine in Herndon

The mean percent of sunhours during the day in Herndon (Virginia), the United States of America.


  • The sun shines on average 64.0% in June making it the most sunny month.
  • On average, December has the lowest percentage of sunshine with 45.0%.

Forecast: is it sunny in Herndon?

Tue   Dec 24
5°C | -3°C
SW 2 m/s
0.7 mm
broken clouds and chance of slight snow

broken clouds and chance of slight snow

hourly forecast
Wed   Dec 25
6°C | -1°C
NE 3 m/s
overcast and no rain

overcast and no rain

hourly forecast
Thu   Dec 26
6°C | -2°C
E 2 m/s
overcast and no rain

overcast and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

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