September weather forecastSedley, VA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Sedley, Virginia, with an average temperature ranging between max 80.8°F (27.1°C) and min 63.9°F (17.7°C).Temperature
September brings a minor shift in the average high-temperature, adjusting from a hot 86.5°F (30.3°C) in August to a moderately hot 80.8°F (27.1°C). During the nights in September, Sedley experiences a consistent average temperature of 63.9°F (17.7°C).Heat index
For most parts of September, the heat index is evaluated at a tropical 86°F (30°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
The average relative humidity in September is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 13 days and accumulates 2.28" (58mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:52 pm EDT.
Sunshine
In Sedley, Virginia, the average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the UV index of 5 transforms into the following advice:
Exercise prevention - Precautions against solar damage are endorsed. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sedley, VA
- Average high temperature in September: 80.8°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (46.8°F).
- Average low temperature in September: 63.9°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in September
Sedley, VA
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Sedley, VA
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Sedley, VA
- Average humidity in September: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is January (75%).
Average rainfall in September
Sedley, VA
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in September
Sedley, VA
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in September
Sedley, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Sedley, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 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
Sedley, VA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
Sedley, VA
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in September
Sedley, 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 and December (UV index 2).
Average cloud cover in September
Sedley, VA
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility in September
Sedley, VA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
