September weather forecastHolts Corner, VA
September
Weather in September
The first month of the autumn, September, is still a warm month in Holts Corner, Virginia, with an average temperature varying between 62.8°F (17.1°C) and 80.6°F (27°C).Temperature
September witnesses a gentle descent in average high-temperature, descending from August's hot 87.4°F (30.8°C) to a moderately hot 80.6°F (27°C). During September nights, Holts Corner witnesses a consistent average temperature of 62.8°F (17.1°C).Heat index
The heat index in September is computed to be 84.2°F (29°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
The average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall in Holts Corner, Virginia. Rain falls for 11.9 days and accumulates 1.77" (45mm) of precipitation.Snowfall
In Holts Corner, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September in Holts Corner, sunrise is at 6:39 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:53 pm EDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 during September leads to these advisories:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Holts Corner, VA
- Average high temperature in September: 80.6°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in September: 62.8°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in September
Holts Corner, VA
- Average pressure in September: 30.04"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
Holts Corner, VA
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Holts Corner, VA
- Average humidity in September: 76%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Holts Corner, VA
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is August (2.99").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in September
Holts Corner, VA
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in September
Holts Corner, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Holts Corner, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.9 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
Holts Corner, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 18min).
Average sunshine days in September
Holts Corner, VA
- Average sunshine days in September: 16.7 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
Holts Corner, 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
Holts Corner, VA
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Holts Corner, VA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are May and December (5mi).
