September weather forecast
Shack Mills, VA

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Weather in September

September, the first month of the autumn in Shack Mills, is still a warm month, with an average temperature fluctuating between 76.1°F (24.5°C) and 53.6°F (12°C).

Temperature

Shack Mills observes a small decrease in the average high-temperature with the arrival of September, falling from August's 81.7°F (27.6°C) to a still moderately hot 76.1°F (24.5°C). September nights in Shack Mills, Virginia, present a sharp contrast to daytime highs, with average temperatures of 53.6°F (12°C).

Humidity

In September, the average relative humidity in Shack Mills is 78%.

Rainfall

September is the month with the least rainfall in Shack Mills. Rain falls for 13.2 days and accumulates 1.14" (29mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Shack Mills, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:59 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:12 pm EDT.

Sunshine

In Shack Mills, Virginia, the average sunshine in September is 8.4h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum high daily UV index of 4 during September translates into the following directions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What is the temperature in September in Shack Mills?

September temperatures in Shack Mills, Virginia, vary between a high-temperature of 76.1°F (24.5°C) and a low-temperature of 53.6°F (12°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is computed to be 87.8°F (31°C).

What is the average humidity in September in Shack Mills?

In Shack Mills, the average relative humidity in September is 78%.

What is the driest month in Shack Mills?

September is the month with the least rainfall in Shack Mills, Virginia. Rain falls for 13.2 days and accumulates 1.14" (29mm) of precipitation.

How many days does it rain in September in Shack Mills?

In Shack Mills, Virginia, in September, during 13.2 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

When it does not snow in Shack Mills?

June through September are months without snowfall in Shack Mills.

Does it snow in Shack Mills in September?

In Shack Mills, Virginia, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Shack Mills have in September?

In September, the average day length in Shack Mills is 12h and 25min.

When is the sunrise / sunset in September in Shack Mills?

On the first day of September, sunrise is at 6:59 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:12 pm EDT.

How many hours of sunshine does Shack Mills have in September?

In Shack Mills, the average sunshine duration in September is 8.4h.

What is the UV index reading in September in Shack Mills?

The average daily maximum UV index in September in Shack Mills, Virginia, is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Shack Mills, VA

Average temperature in September - Shack Mills, VA
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 53.6°F

The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

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Average pressure in September
Shack Mills, VA

Average pressure in September - Shack Mills, VA
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in September
Shack Mills, VA

Average wind speed in September - Shack Mills, VA
  • Average wind speed in September: 4.5mph

The windiest months (with the highest average wind speed) are January, February and April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in September
Shack Mills, VA

Average humidity in September - Shack Mills, VA
  • Average humidity in September: 78%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is November (76%).

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Average rainfall in September
Shack Mills, VA

Average rainfall in September - Shack Mills, VA
  • Average rainfall in September: 1.14"

The wettest month (with the highest rainfall) is February (2.72").
The driest month (with the least rainfall) is September (1.14").

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Average rainfall days in September
Shack Mills, VA

Average rainfall days in September - Shack Mills, VA
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in September
Shack Mills, VA

Average snowfall in September - Shack Mills, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is December (4.65").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Shack Mills, VA

Average snowfall days in September - Shack Mills, VA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Shack Mills, VA

Average daylight in September / Average sunshine in September - Shack Mills, VA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 8h and 2min

The months with the most sunshine are June, July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in September
Shack Mills, VA

Average sunshine days in September - Shack Mills, VA
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is May (10.3 days).

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Average UV index in September
Shack Mills, VA

Average UV index in September - Shack Mills, VA
  • Average UV index in September: 4

The months with the highest UV index are May, June, July and August (UV index 5).
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
Shack Mills, VA

Average cloud cover in September - Shack Mills, VA
  • Average cloud cover in September: 39

The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in September
Shack Mills, VA

Average visibility in September - Shack Mills, VA
  • Average visibility in September: 5mi

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

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Shack Mills, Virginia, USA

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