September weather forecastVernon Hill, VA
September
Weather in September
September, the first month of the autumn in Vernon Hill, is still a warm month, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 81.5°F (27.5°C).Temperature
September is marked by a subtle drop in average high-temperatures, transitioning from a hot 88.2°F (31.2°C) in August to a warm 81.5°F (27.5°C). Vernon Hill reports an average low-temperature of 61.9°F (16.6°C) during the nights of September.Heat index
The heat index in September is appraised at a hot 86°F (30°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
The average relative humidity in September is 74%.Rainfall
The month with the least rainfall is September, when the rain falls for 13 days and typically collects 1.77" (45mm) of precipitation.Snowfall
In Vernon Hill, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:11 am and sunset at 7:00 pm EDT.
Sunshine
In Vernon Hill, Virginia, the average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 during September translates into the following guidance:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vernon Hill, VA
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in September: 61.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in September
Vernon Hill, VA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Vernon Hill, VA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Vernon Hill, VA
- Average humidity in September: 74%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).
Average rainfall in September
Vernon Hill, VA
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in September
Vernon Hill, VA
- Average rainfall days in September: 13 days
The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in September
Vernon Hill, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Vernon Hill, VA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (3.1 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
Vernon Hill, 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: 8h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Vernon Hill, VA
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in September
Vernon Hill, VA
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Vernon Hill, VA
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility in September
Vernon Hill, VA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
