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, Centreville's average high-temperature slightly adjusts, moderately receding from August's warm 29.9°C (85.8°F) to a still moderately hot 25.8°C (78.4°F). Centreville usually reports an average low-temperature of 15.9°C (60.6°F) during the month of September.Humidity
The average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.1 days and typically collects 51mm (2.01") of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:39 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:53 pm EDT.
Sunshine
The average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 5 in September leads to these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Centreville?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Centreville, VA
- Average high temperature in September: 25.8°C
The warmest month (with the highest average high temperature) is July (31.1°C).
The month with the lowest average high temperature is January (4.7°C).
- Average low temperature in September: 15.9°C
The month with the highest average low temperature is July (20.2°C).
The coldest month (with the lowest average low temperature) is January (-3.1°C).
Average pressure in September
Centreville, VA
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is November (1020.6mbar).
The month with the lowest atmospheric pressure is June (1014.1mbar).
Average wind speed in September
Centreville, VA
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is March (11.9km/h).
The calmest month (with the lowest average wind speed) is August (7.6km/h).
Average humidity in September
Centreville, VA
- Average humidity in September: 75%
The months with the highest relative humidity are October and December (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Centreville, VA
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is August (96mm).
The driest month (with the least rainfall) is September (51mm).
Average rainfall days in September
Centreville, VA
- Average rainfall days in September: 13.1 days
The months with the highest number of rainy days are May and August (17.3 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in September
Centreville, VA
- Average snowfall in September: 0mm
The month with the highest snowfall is January (90mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Centreville, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.6 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
Centreville, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).
Average sunshine days in September
Centreville, VA
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Centreville, 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, February, November and December (UV index 2).
Average cloud cover in September
Centreville, 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
Centreville, VA
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).
Centreville, Virginia, USA
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