Average Monthly Sunshine hours in Williamstown (NJ)

This graph shows the average number of hours per month that Williamstown 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 275 hours of sunshine.
• December has on average the lowest amount of sunshine with 140 hours.
• On average, the total annual amount of sun is 2500 hours.

Forecast: is it sunny in Williamstown (NJ)?

Thu   Nov 21

11°C | 4°C

NW 14 km/h

5.7 mm

broken clouds and rain

hourly forecast

Fri   Nov 22

6°C | 2°C

SW 29 km/h

9.1 mm

overcast and heavy rain

hourly forecast

Sat   Nov 23

11°C | 3°C

NW 29 km/h

almost clear and no rain

hourly forecast

5-Day Forecast 10-Day Forecast