October weather forecast
Ashburn, VA

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Weather in October

Cooler days characterize October in Ashburn as the shift from September to November marks the transition to crisp temperatures. Although the rainfall increases from September, it remains lower than in November, creating a relatively dry time. The most striking feature of October's weather is its extended daylight hours, which paint the city in a golden autumnal glow. Gusty winds making their presence known again, serving as a reminder of the impending winter months.

Temperature

A shift in the average high-temperature occurs in October, reducing from a moderately hot 78.3°F (25.7°C) in September to an enjoyable 66°F (18.9°C). In Ashburn, an average low-temperature of 49.1°F (9.5°C) is recorded during October nights.

Humidity

In Ashburn, the average relative humidity in October is 77%.

Rainfall

In Ashburn, during October, the rain falls for 12 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Ashburn, during the entire year, the rain falls for 158.1 days and collects up to 31.46" (799mm) of precipitation.

Snowfall

In Ashburn, snow does not fall in May through October.

Daylight

The average length of the day in October is 11h and 10min.
On the first day of the month, sunrise is at 7:06 am and sunset at 6:52 pm. On the last day of October, sunrise is at 7:37 am and sunset at 6:09 pm EDT.

Sunshine

In October, the average sunshine is 5.5h.

UV index

In October, the average daily maximum UV index is 3. 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 average daily UV index of 3 in October transforms into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Ashburn in October?

The high-temperature during October is 66°F (18.9°C) and the low-temperature is 49.1°F (9.5°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 95°F (35°C).

What is the average humidity in October?

The average relative humidity in October is 77%.

How many days does it rain in October?

In Ashburn, during October, the rain falls for 12 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow?

May through October are months without snowfall.

Does it snow in October?

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

How many hours of daylight does Ashburn have in October?

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

When is the sunrise / sunset in October?

On the first day of October, sunrise is at 7:06 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 6:09 pm EDT.

How many hours of sunshine does Ashburn have in October?

In October, the average sunshine duration is 5.5h.

How high is the UV index in October?

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health risk 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 October
Ashburn, VA

Average temperature in October - Ashburn, VA
  • Average high temperature in October: 66°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 (39.7°F).

  • Average low temperature in October: 49.1°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

Average pressure in October
Ashburn, VA

Average pressure in October - Ashburn, 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
Ashburn, VA

Average wind speed in October - Ashburn, VA
  • Average wind speed in October: 6.2mph

The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in October
Ashburn, VA

Average humidity in October - Ashburn, VA
  • Average humidity in October: 77%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (70%).

Average rainfall in October
Ashburn, VA

Average rainfall in October - Ashburn, VA
  • Average rainfall in October: 2.52"

The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in October
Ashburn, VA

Average rainfall days in October - Ashburn, VA
  • Average rainfall days in October: 12 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in October
Ashburn, VA

Average snowfall in October - Ashburn, VA
  • Average snowfall in October: 0"

The month with the highest snowfall is January (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Ashburn, VA

Average snowfall days in October - Ashburn, VA
  • Average snowfall days in October: 0 days

The months with the highest number of snowfall days are January and February (5.1 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
Ashburn, VA

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in October: 5h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 0min).

Average sunshine days in October
Ashburn, VA

Average sunshine days in October - Ashburn, VA
  • Average sunshine days in October: 17.3 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in October
Ashburn, VA

Average UV index in October - Ashburn, VA
  • Average UV index in October: 3

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).

Average cloud cover in October
Ashburn, VA

Average cloud cover in October - Ashburn, VA
  • Average cloud cover in October: 40

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in October
Ashburn, VA

Average visibility in October - Ashburn, 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).

Ashburn, Virginia, USA

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