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
September is characterized by a mild reduction in the average high-temperature, from a moderately hot 81.9°F (27.7°C) in August to a still warm 75.9°F (24.4°C). In Vesuvius, September nights cool down to an average of 55.2°F (12.9°C).Humidity
In September, the average relative humidity is 78%.Rainfall
In Vesuvius, in September, during 14.5 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Vesuvius, during the entire year, the rain falls for 164.9 days and collects up to 33.7" (856mm) of precipitation.Snowfall
In Vesuvius, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:00 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 4 during September leads to these instructions:
Take precautions - Protection against skin and eye damage is obliged. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
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?
How many hours of daylight does Vesuvius have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Vesuvius have in September?
How high is the UV index in September?
Average temperature in September
Vesuvius, VA
- Average high temperature in September: 75.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in September
Vesuvius, 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
Vesuvius, VA
- Average wind speed in September: 4.7mph
The windiest months (with the highest average wind speed) are February and April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Vesuvius, VA
- Average humidity in September: 78%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and July (74%).
Average rainfall in September
Vesuvius, VA
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is May (3.7").
The driest months (with the least rainfall) are January and November (2.09").
Average rainfall days in September
Vesuvius, VA
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in September
Vesuvius, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Vesuvius, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Vesuvius, 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 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Vesuvius, VA
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in September
Vesuvius, VA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Vesuvius, VA
- Average cloud cover in September: 42
The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are June and July (Cloud cover 34).
Average visibility in September
Vesuvius, VA
- Average visibility in September: 5mi
The months with the highest visibility are June, July and November (6mi).
The months with the lowest visibility are January, February, March, April, May, August, September, October and December (5mi).
Vesuvius, Virginia, USA
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