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
With the onset of September, Warrenton's climate undergoes a slight change as the average high-temperature moves from a warm 84.9°F (29.4°C) in August to a still moderately hot 78.1°F (25.6°C). In the month of September, Warrenton's average low-temperature falls to a moderate 58.6°F (14.8°C).Humidity
In September, the average relative humidity is 76%.Rainfall
The month with the least rainfall in Warrenton is September, when the rain falls for 13.2 days and typically collects 1.85" (47mm) of precipitation.Snowfall
In Warrenton, snow does not fall in June through October.Daylight
In Warrenton, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:55 pm EDT.
Sunshine
In Warrenton, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index in Warrenton, Virginia, is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What are September temperatures in Warrenton?
What is the average humidity in September in Warrenton?
What is the driest month in Warrenton?
How many days does it rain in September in Warrenton?
When it does not snow in Warrenton?
What is the average length of the day in September in Warrenton?
What time are sunrise and sunset in September in Warrenton?
How many hours of sunshine does Warrenton have in September?
What is the UV index reading in September in Warrenton?
Average temperature in September
Warrenton, VA
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in September
Warrenton, VA
- Average pressure in September: 30.05"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
Warrenton, VA
- Average wind speed in September: 4.9mph
The windiest months (with the highest average wind speed) are March and April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Warrenton, 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 (72%).
Average rainfall in September
Warrenton, VA
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Warrenton, VA
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Warrenton, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.74").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Warrenton, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Warrenton, 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 30min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Warrenton, VA
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in September
Warrenton, 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
Warrenton, VA
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Warrenton, VA
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, June, July, August and November (6mi).
The months with the lowest visibility are February, May, September, October and December (5mi).
Warrenton, Virginia, USA
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