Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September brings a small shift in high-temperatures, falling from a hot 86.2°F (30.1°C) in August to a warm 80.2°F (26.8°C). In Carrollton, the nighttime temperature averages to a refreshing 66.2°F (19°C) during September.Humidity
In September, the average relative humidity is 76%.Rainfall
In Carrollton, in September, during 12.1 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, in Carrollton, there are 161.5 rainfall days, and 33.9" (861mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Carrollton, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:34 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:50 pm EDT.
Sunshine
In September, the average sunshine in Carrollton is 9.1h.UV index
The average daily maximum UV index in September in Carrollton, Virginia, is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What is the temperature in September in Carrollton?
What is the average humidity in September in Carrollton?
How many days does it rain in September in Carrollton?
When it does not snow in Carrollton?
How many hours of daylight does Carrollton have in September?
When are sunrise and sunset in September in Carrollton?
How many hours of sunshine does Carrollton have in September?
What is the UV index reading in September in Carrollton?
Average temperature in September
Carrollton, VA
- Average high temperature in September: 80.2°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in September: 66.2°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).
Average pressure in September
Carrollton, 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
Carrollton, VA
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Carrollton, VA
- Average humidity in September: 76%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Carrollton, VA
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is January (2.52").
Average rainfall days in September
Carrollton, VA
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in September
Carrollton, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Carrollton, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.7 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
Carrollton, VA
- Average daylight in September: 12h and 2min
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 42min).
- Average sunshine in September: 9h and 1min
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 12min).
Average sunshine days in September
Carrollton, VA
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in September
Carrollton, VA
- Average UV index in September: 5
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Carrollton, VA
- Average cloud cover in September: 36
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Carrollton, VA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Carrollton, Virginia, USA
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