October weather forecastMount Vernon, VA
October
Weather in October
October, the same as September, is another comfortable autumn month in Mount Vernon, Virginia, with an average temperature fluctuating between 67.1°F (19.5°C) and 51.3°F (10.7°C).Temperature
Mount Vernon in October demonstrates a small temperature transition, adjusting from an average high of a moderately hot 78.6°F (25.9°C) in September to a refreshing 67.1°F (19.5°C). An average minimum temperature of 51.3°F (10.7°C) marks the month of October.Humidity
The months with the highest humidity are May, October and December, with an average relative humidity of 76%.Rainfall
In Mount Vernon, in October, during 12 rainfall days, 2.56" (65mm) of precipitation is typically 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
In Mount Vernon, snow does not fall in May through October.Daylight
The average length of the day in October in Mount Vernon is 11h and 10min.On the first day of the month, sunrise is at 7:04 am and sunset at 6:50 pm. On the last day of October, sunrise is at 7:35 am and sunset at 6:09 pm EDT.
Sunshine
In Mount Vernon, the average sunshine in October is 5.7h.UV index
In Mount Vernon, the average daily maximum UV index in October 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 ordinary individuals.Note: The maximum UV index of 4 during October translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in October /
Average sunshine in October
Mount Vernon, VA
- Average daylight in October: 11h and 12min
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 42min
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).
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).
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).
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).
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).
