Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
October suggests a modest reduction in the average high-temperature, shifting from a warm 81.3°F (27.4°C) in September to an agreeable 69.3°F (20.7°C). In the month of October, the nighttime temperature in Roslyn Hills dips to a steady average of 51.8°F (11°C).Humidity
In October, the average relative humidity in Roslyn Hills is 75%.Rainfall
In Roslyn Hills, in October, during 10.5 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Roslyn Hills, during the entire year, the rain falls for 151.1 days and collects up to 26.22" (666mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in October in Roslyn Hills is 11h and 13min.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 7:34 am and sunset at 6:12 pm EDT.
Sunshine
The average sunshine in October in Roslyn Hills is 5.7h.UV index
In October, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 during October translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What is the temperature in October in Roslyn Hills?
What is the average humidity in October in Roslyn Hills?
How many days does it rain in October in Roslyn Hills?
When it does not snow in Roslyn Hills?
Does it snow in Roslyn Hills in October?
How many hours of daylight does Roslyn Hills have in October?
When are sunrise and sunset in October in Roslyn Hills?
How many hours of sunshine does Roslyn Hills have in October?
What is the UV index reading in October in Roslyn Hills?
Average temperature in October
Roslyn Hills, VA
- Average high temperature in October: 69.3°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in October: 51.8°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in October
Roslyn Hills, 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
Roslyn Hills, VA
- Average wind speed in October: 6.2mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in October
Roslyn Hills, VA
- Average humidity in October: 75%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (68%).
Average rainfall in October
Roslyn Hills, VA
- Average rainfall in October: 2.2"
The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in October
Roslyn Hills, VA
- Average rainfall days in October: 10.5 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in October
Roslyn Hills, VA
- Average snowfall in October: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Roslyn Hills, VA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (3.5 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
Roslyn Hills, VA
- Average daylight in October: 11h and 1min
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 36min).
- Average sunshine in October: 5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in October
Roslyn Hills, VA
- Average sunshine days in October: 18.5 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in October
Roslyn Hills, VA
- Average UV index in October: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in October
Roslyn Hills, VA
- Average cloud cover in October: 38
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in October
Roslyn Hills, 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).
Roslyn Hills, Virginia, USA
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