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 shift from August to September coincides with a small decrease in the average high-temperature, down to a still moderately hot 76.1°F (24.5°C) from 82.9°F (28.3°C). Afton records an average temperature drop to a moderate 56.1°F (13.4°C) in September.Humidity
The months with the highest humidity are May, September and October, with an average relative humidity of 78%.Rainfall
In Afton, in September, during 13.2 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, there are 161 rainfall days, and 31.57" (802mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Afton, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:10 am and sunset at 6:59 pm EDT.
Sunshine
In Afton, the average sunshine in September is 8.5h.UV index
In Afton, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the most humid month?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Afton, VA
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in September
Afton, VA
- Average pressure in September: 30.06"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
Afton, VA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in September
Afton, VA
- Average humidity in September: 78%
The months with the highest relative humidity are May, September and October (78%).
The months with the lowest relative humidity are January and July (73%).
Average rainfall in September
Afton, VA
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is April (3.43").
The driest months (with the least rainfall) are January and November (2.01").
Average rainfall days in September
Afton, VA
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in September
Afton, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.57").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Afton, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.3 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
Afton, VA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 5h and 18min).
Average sunshine days in September
Afton, VA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is August (10.6 days).
Average UV index in September
Afton, VA
- Average UV index in September: 4
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, February, November and December (UV index 2).
Average cloud cover in September
Afton, VA
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in September
Afton, VA
- Average visibility in September: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
Afton, Virginia, USA
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