September weather forecastRunning Still, VA
September
Weather in September
September, the first month of the autumn in Running Still, is still a warm month, with an average temperature ranging between max 80.2°F (26.8°C) and min 60.6°F (15.9°C).Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's tropical 87.3°F (30.7°C) to a warm 80.2°F (26.8°C). September nights cool down to an average low-temperature of 60.6°F (15.9°C).Humidity
In Running Still, the average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.2 days and typically collects 1.93" (49mm) of precipitation.Snowfall
May through October are months without snowfall in Running Still.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:42 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:55 pm EDT.
Sunshine
The average sunshine in September in Running Still, Virginia, is 8.6h.UV index
In September, the average daily maximum UV index in Running Still is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: An average UV index of 5 in September transforms into this advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Running Still, VA
- Average high temperature in September: 80.2°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (43°F).
- Average low temperature in September: 60.6°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in September
Running Still, VA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Running Still, VA
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Running Still, VA
- Average humidity in September: 75%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Running Still, VA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is April (2.91").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Running Still, VA
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Running Still, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Running Still, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.3 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
Running Still, 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: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Running Still, VA
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in September
Running Still, VA
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Running Still, VA
- Average cloud cover in September: 40
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Running Still, VA
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, May, September and December (5mi).
