October weather forecast
Mount Vernon, VA

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Weather in October

October, like September, in Mount Vernon, Virginia, is another comfortable autumn month, with an average temperature ranging between min 51.3°F (10.7°C) and max 67.1°F (19.5°C).

Temperature

As September shifts into October, a slight alteration in temperatures is observed, with average highs reducing from a warm 78.6°F (25.9°C) to a refreshing 67.1°F (19.5°C). In the month of October, the average temperature dips to a fresh 51.3°F (10.7°C) during the night.

Humidity

May, October and December, with an average relative humidity of 76%, are the most humid months.

Rainfall

In October, in Mount Vernon, the rain falls for 12 days. Throughout October, 2.56" (65mm) of precipitation is accumulated. In Mount Vernon, during the entire year, the rain falls for 158.2 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Mount Vernon, the average length of the day in October is 11h and 10min.
On the first day of October in Mount Vernon, sunrise is at 7:04 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 6:09 pm EDT.

Sunshine

The average sunshine in October is 5.7h.

UV index

The average daily maximum UV index in October in Mount Vernon is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 4 in October transforms into the following instructions:
Prioritize safety - Recommendations to avert sunburn are shared. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. 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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Frequently asked questions

What is the temperature in October in Mount Vernon?

The average high-temperature and low-temperature in Mount Vernon during October are 67.1°F (19.5°C) and 51.3°F (10.7°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 95°F (35°C).

What is the most humid month in Mount Vernon?

The months with the highest humidity in Mount Vernon, Virginia, are May, October and December, with an average relative humidity of 76%.

What is the average humidity in October in Mount Vernon?

The average relative humidity in October in Mount Vernon, Virginia, is 76%.

How much does it rain in Mount Vernon in October?

In October, in Mount Vernon, Virginia, the rain falls for 12 days. Throughout October, 2.56" (65mm) of precipitation is accumulated.

When it does not snow in Mount Vernon?

May through October are months without snowfall.

Does it snow in Mount Vernon in October?

In Mount Vernon, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October in Mount Vernon?

In Mount Vernon, Virginia, the average day length in October is 11h and 10min.

What time are sunrise and sunset in October in Mount Vernon?

In October, on the first day of the month, sunrise is at 7:04 am and sunset at 6:50 pm. On the last day of the month, in Mount Vernon, sunrise is at 7:35 am and sunset at 6:09 pm EDT.

How many hours of sunshine does Mount Vernon have in October?

The average sunshine duration in October in Mount Vernon, Virginia, is 5.7h.

How high is the UV index in October in Mount Vernon?

In October, the average daily maximum UV index in Mount Vernon, Virginia, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to 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 October
Mount Vernon, VA

Average temperature in October - Mount Vernon, VA
  • Average high temperature in October: 67.1°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in October: 51.3°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

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Average pressure in October
Mount Vernon, VA

Average pressure in October - Mount Vernon, VA
  • Average pressure in October: 30.04"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 October
Mount Vernon, VA

Average wind speed in October - Mount Vernon, VA
  • Average wind speed in October: 6.6mph

The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in October
Mount Vernon, VA

Average humidity in October - Mount Vernon, VA
  • Average humidity in October: 76%

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

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Average rainfall in October
Mount Vernon, VA

Average rainfall in October - Mount Vernon, VA
  • Average rainfall in October: 2.56"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in October
Mount Vernon, VA

Average rainfall days in October - Mount Vernon, VA
  • Average rainfall days in October: 12 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in October
Mount Vernon, VA

Average snowfall in October - Mount Vernon, VA
  • Average snowfall in October: 0"

The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in October
Mount Vernon, VA

Average snowfall days in October - Mount Vernon, VA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in October /
Average sunshine in October
Mount Vernon, VA

Average daylight in October / Average sunshine in October - Mount Vernon, VA
  • Average daylight in October: 11h and 1min

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 October: 5h and 4min

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

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Average sunshine days in October
Mount Vernon, VA

Average sunshine days in October - Mount Vernon, VA
  • Average sunshine days in October: 17.7 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.5 days).

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Average UV index in October
Mount Vernon, VA

Average UV index in October - Mount Vernon, VA
  • Average UV index in October: 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 and December (UV index 2).

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Average cloud cover in October
Mount Vernon, VA

Average cloud cover in October - Mount Vernon, VA
  • Average cloud cover in October: 38

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in October
Mount Vernon, VA

Average visibility in October - Mount Vernon, VA
  • Average visibility in October: 6mi

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

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Mount Vernon, Virginia, USA

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