September weather forecast
Mountville, VA

Weather in September

The first month of the autumn, September, is also a moderately hot month in Mountville, Virginia, with an average temperature fluctuating between 77.4°F (25.2°C) and 58.3°F (14.6°C).

Temperature

In September, the average high-temperature slightly decreases from 84.6°F (29.2°C) in August to a still warm 77.4°F (25.2°C). The average low-temperature, in September, is 58.3°F (14.6°C).

Humidity

In September, the average relative humidity is 77%.

Rainfall

September is the month with the least rainfall in Mountville. Rain falls for 13.7 days and accumulates 1.93" (49mm) of precipitation.

Snowfall

In Mountville, Virginia, snow does not fall in May through September.

Daylight

In Mountville, 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 7:41 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:55 pm EDT.

Sunshine

In Mountville, the average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in September in Mountville?

The average relative humidity in September is 77%.

What is the driest month in Mountville?

The month with the least rainfall in Mountville is September, when the rain falls for 13.7 days and typically collects 1.93" (49mm) of precipitation.

How much does it rain in Mountville in September?

In Mountville, in September, it is raining for 13.7 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow in Mountville?

In Mountville, Virginia, snow does not fall in May through September.

Does it snow in Mountville in September?

In Mountville, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Mountville?

The average day length in September in Mountville is 12h and 26min.

When are sunrise and sunset in September in Mountville?

In September, on the first day of the month, sunrise is at 6:39 am and sunset at 7:41 pm. On the last day of the month, in Mountville, sunrise is at 7:06 am and sunset at 6:55 pm EDT.

How long on average sun shines in September in Mountville?

The average sunshine duration in September in Mountville is 8.9h.

What is the UV index intensity in September in Mountville?

In September, the average daily maximum UV index in Mountville is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Mountville, VA

Average temperature in September - Mountville, VA
  • Average high temperature in September: 77.4°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in September: 58.3°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure in September
Mountville, VA

Average pressure in September - Mountville, VA
  • Average pressure in September: 30.06"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).

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Average wind speed in September
Mountville, VA

Average wind speed in September - Mountville, VA
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity in September
Mountville, VA

Average humidity in September - Mountville, VA
  • Average humidity in September: 77%

The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (73%).

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Average rainfall in September
Mountville, VA

Average rainfall in September - Mountville, VA
  • Average rainfall in September: 1.93"

The wettest months (with the highest rainfall) are May and August (3.35").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in September
Mountville, VA

Average rainfall days in September - Mountville, VA
  • Average rainfall days in September: 13.7 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (10.1 days).

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Average snowfall in September
Mountville, VA

Average snowfall in September - Mountville, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Mountville, VA

Average snowfall days in September - Mountville, VA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Mountville, VA

Average daylight in September / Average sunshine in September - Mountville, VA
  • Average daylight in September: 12h and 26min

The month with the longest days is June (Average daylight: 14h and 52min).
The month with the shortest days is December (Average daylight: 9h and 29min).

  • Average sunshine in September: 8h and 54min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).

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Average sunshine days in September
Mountville, VA

Average sunshine days in September - Mountville, VA
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in September
Mountville, VA

Average UV index in September - Mountville, 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).

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Average cloud cover in September
Mountville, VA

Average cloud cover in September - Mountville, VA
  • Average cloud cover in September: 36

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in September
Mountville, VA

Average visibility in September - Mountville, VA
  • Average visibility in September: 5mi

The months with the highest visibility are February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, May, September, October and December (5mi).

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