September weather forecastWillis Wharf, VA
September
Weather in September
September, the first month of the autumn in Willis Wharf, is also a moderately hot month, with temperature in the range of an average low of 70.7°F (21.5°C) and an average high of 76.1°F (24.5°C).Temperature
The transition into September reveals an average high-temperature of a still warm 76.1°F (24.5°C), mirroring a close resemblance to August. A modest decline from daytime high temperatures in Willis Wharf is noticed in September, marking the average low at a pleasant 70.7°F (21.5°C).Humidity
In September, the average relative humidity in Willis Wharf is 76%.Rainfall
In September, the rain falls for 14.4 days. Throughout September, 2.44" (62mm) of precipitation is accumulated. Throughout the year, in Willis Wharf, there are 161.5 rainfall days, and 26.06" (662mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall in Willis Wharf.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:47 pm EDT.
Sunshine
In September, the average sunshine is 9.6h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Willis Wharf, VA
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in September: 70.7°F
The month with the highest average low temperature is July (75.9°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).
Average pressure in September
Willis Wharf, VA
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Willis Wharf, VA
- Average wind speed in September: 11.3mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is August (9.5mph).
Average humidity in September
Willis Wharf, VA
- Average humidity in September: 76%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in September
Willis Wharf, VA
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is November (1.54").
Average rainfall days in September
Willis Wharf, VA
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Willis Wharf, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Willis Wharf, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Willis Wharf, VA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in September
Willis Wharf, VA
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Willis Wharf, VA
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Willis Wharf, VA
- Average cloud cover in September: 31
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Willis Wharf, VA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
