October weather forecastArlington, VA
October
Weather in October
October in Arlington cherishes the crisp autumn air with much lower temperatures from September. The city dances in the hues of fall, making it a great time for leaf-peeping activities and hikes. With daylight hours lessening and a noticeable decrease in the UV index, the intensity of the sun gradually tapers. With relative humidity of 75% and average winds reaching 6.8mph (10.9km/h), a light jacket can prove beneficial during this month.Temperature
Onset of October comes with a temperature decline, the average high falling from a moderately hot 78.4°F (25.8°C) in September to an enjoyable 66.9°F (19.4°C). Arlington usually reports an average low-temperature of 51.3°F (10.7°C) during the month of October.Humidity
In October, the average relative humidity in Arlington is 75%.Rainfall
In Arlington, in October, it is raining for 10.4 days, with typically 2.01" (51mm) of accumulated precipitation. In Arlington, during the entire year, the rain falls for 149.1 days and collects up to 26.14" (664mm) of precipitation.Snowfall
In Arlington, snow does not fall in April through November.Daylight
The average length of the day in October is 11h and 10min.On the first day of October, sunrise is at 7:05 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 6:08 pm EDT.
Sunshine
In October, the average sunshine is 5.7h.UV index
In October, the average daily maximum UV index in Arlington, Virginia, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 4 in October translates into these instructions:
Guard yourself - Precautionary measures against sun damage are advocated. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Arlington, VA
- Average high temperature in October: 66.9°F
The warmest month (with the highest average high temperature) is July (88°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 (27.5°F).
Average pressure in October
Arlington, 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
Arlington, VA
- Average wind speed in October: 6.8mph
The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in October
Arlington, VA
- Average humidity in October: 75%
The month with the highest relative humidity is May (76%).
The months with the lowest relative humidity are April and July (71%).
Average rainfall in October
Arlington, VA
- Average rainfall in October: 2.01"
The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in October
Arlington, VA
- Average rainfall days in October: 10.4 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is November (8.1 days).
Average snowfall in October
Arlington, VA
- Average snowfall in October: 0"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in October
Arlington, VA
- Average snowfall days in October: 0 days
The months with the highest number of snowfall days are January and February (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Arlington, 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 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).
Average sunshine days in October
Arlington, VA
- Average sunshine days in October: 19.3 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in October
Arlington, VA
- Average UV index in October: 4
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in October
Arlington, 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
Arlington, 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).
