Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's advent notes a subtle adjustment in average high-temperature to a still moderately hot 76.1°F (24.5°C) from August. Accomac records a slight downturn in temperature to an average of 70.3°F (21.3°C) during September nights.Humidity
The average relative humidity in September is 76%.Rainfall
In September, the rain falls for 14.6 days. Throughout September, 3.07" (78mm) of precipitation is accumulated. In Accomac, during the entire year, the rain falls for 175.7 days and collects up to 37.72" (958mm) of precipitation.Snowfall
In Accomac, snow does not fall in April through November.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:46 pm EDT.
Sunshine
In September, the average sunshine is 9.6h.UV index
The average daily maximum UV index in September in Accomac is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What are September temperatures in Accomac?
What is the average humidity in September in Accomac?
How much does it rain in Accomac in September?
When it does not snow in Accomac?
How many hours of daylight does Accomac have in September?
When are sunrise and sunset in September in Accomac?
How long on average sun shines in September in Accomac?
How high is the UV index in September in Accomac?
Average temperature in September
Accomac, 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: 70.3°F
The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Accomac, 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
Accomac, VA
- Average wind speed in September: 10.9mph
The windiest month (with the highest average wind speed) is January (13.1mph).
The calmest month (with the lowest average wind speed) is August (9.2mph).
Average humidity in September
Accomac, 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
Accomac, VA
- Average rainfall in September: 3.07"
The wettest month (with the highest rainfall) is August (4.29").
The driest months (with the least rainfall) are January and November (2.44").
Average rainfall days in September
Accomac, VA
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (10.9 days).
Average snowfall in September
Accomac, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Accomac, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Accomac, VA
- Average daylight in September: 12h and 2min
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 4min
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
Accomac, VA
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Accomac, 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
Accomac, VA
- Average cloud cover in September: 31
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June, July and August (Cloud cover 26).
Average visibility in September
Accomac, 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).
Accomac, Virginia, USA
Weather forecast for your location
2. Allow the app to use your location