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
The start of October involves a temperature drop, moving from a moderately hot 78.6°F (25.9°C) in September to an enjoyable 66.4°F (19.1°C). Merrifield usually reports an average low-temperature of 50.2°F (10.1°C) during the month of October.Humidity
The most humid month is October, with an average relative humidity of 77%.Rainfall
In Merrifield, Virginia, in October, it is raining for 12.2 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, there are 161.2 rainfall days, and 31.54" (801mm) of precipitation is accumulated.Snowfall
In Merrifield, Virginia, snow does not fall in May through October.Daylight
In Merrifield, Virginia, the average length of the day in October is 11h and 10min.On the first day of the month, sunrise is at 7:05 am and sunset at 6:51 pm. On the last day of October, in Merrifield, sunrise is at 7:35 am and sunset at 6:09 pm EDT.
Sunshine
In Merrifield, the average sunshine in October is 5.7h.UV index
In Merrifield, the average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 4 during October, leads to the following recommendations:
Exercise prevention - Warding off sunburn is urged. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature in Merrifield?
What is the most humid month in Merrifield?
What is the average humidity in October in Merrifield?
How much does it rain in Merrifield in October?
When it does not snow in Merrifield?
Does it snow in Merrifield in October?
What is the average length of the day in October in Merrifield?
When are sunrise and sunset in October in Merrifield?
How long on average sun shines in October in Merrifield?
How high is the UV index in October in Merrifield?
Average temperature in October
Merrifield, VA
- Average high temperature in October: 66.4°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in October: 50.2°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 (27.1°F).
Average pressure in October
Merrifield, 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
Merrifield, VA
- Average wind speed in October: 6.3mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in October
Merrifield, VA
- Average humidity in October: 77%
The month with the highest relative humidity is October (77%).
The months with the lowest relative humidity are April and July (71%).
Average rainfall in October
Merrifield, VA
- Average rainfall in October: 2.6"
The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in October
Merrifield, VA
- Average rainfall days in October: 12.2 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in October
Merrifield, VA
- Average snowfall in October: 0"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Merrifield, VA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (4.9 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
Merrifield, 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 54min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).
Average sunshine days in October
Merrifield, VA
- Average sunshine days in October: 17.3 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in October
Merrifield, 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, November and December (UV index 2).
Average cloud cover in October
Merrifield, 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
Merrifield, 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).
Merrifield, Virginia, USA
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