September weather forecastJetersville, VA
September
Weather in September
The first month of the autumn, September, is still a warm month in Jetersville, Virginia, with temperature in the range of an average low of 61.7°F (16.5°C) and an average high of 80.6°F (27°C).Temperature
The advent of September brings a slight shift in average high-temperature, moving from a hot 87.4°F (30.8°C) in August to a moderately hot 80.6°F (27°C). The nighttime temperature dips to an enjoyable 61.7°F (16.5°C) on average during September.Heat index
The heat index for September is appraised at 84.2°F (29°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
The average relative humidity in September in Jetersville is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.7 days and typically collects 1.5" (38mm) of precipitation.Snowfall
In Jetersville, snow does not fall in May through October.Daylight
In Jetersville, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:56 pm EDT.
Sunshine
In Jetersville, Virginia, the average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jetersville, VA
- Average high temperature in September: 80.6°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in September
Jetersville, VA
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Jetersville, VA
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Jetersville, 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 (70%).
Average rainfall in September
Jetersville, VA
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in September
Jetersville, VA
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in September
Jetersville, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.97").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Jetersville, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Jetersville, 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 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Jetersville, VA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is May (13 days).
Average UV index in September
Jetersville, 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
Jetersville, VA
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Jetersville, 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).
