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's arrival coincides with a drop in the average high-temperature, decreasing from September's pleasant 69.3°F (20.7°C) to a moderate 56.7°F (13.7°C). In McLean, an average low-temperature of 41.9°F (5.5°C) is recorded during October nights.Humidity
In McLean, New York, the average relative humidity in October is 84%.Rainfall
In October, in McLean, the rain falls for 16.3 days. Throughout October, 3.11" (79mm) of precipitation is accumulated. In McLean, New York, during the entire year, the rain falls for 165.9 days and collects up to 34.41" (874mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows in McLean. Throughout October, in the average 1.8 snowfall days, it receives 0.39" (10mm) of snow. In McLean, during the entire year, snow falls for 87.1 days and aggregates up to 39.17" (995mm) of snow.Daylight
In October, the average length of the day in McLean is 11h and 2min.On the first day of the month, sunrise is at 7:03 am and sunset at 6:46 pm. On the last day of October, in McLean, New York, sunrise is at 7:38 am and sunset at 5:59 pm EDT.
Sunshine
The average sunshine in October is 4.5h.UV index
In McLean, New York, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In October, the maximum UV index of 2 transforms into these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October in McLean?
What is the average humidity in October in McLean?
How many days does it rain in October in McLean?
When does it start to snow in McLean?
What is the average length of the day in October in McLean?
When is the sunrise / sunset in October in McLean?
How long on average sun shines in October in McLean?
What is the UV index intensity in October in McLean?
Average temperature in October
McLean, NY
- Average high temperature in October: 56.7°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in October: 41.9°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in October
McLean, NY
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
McLean, NY
- Average wind speed in October: 7.9mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in October
McLean, NY
- Average humidity in October: 84%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April, May and July (80%).
Average rainfall in October
McLean, NY
- Average rainfall in October: 3.11"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (2.24").
Average rainfall days in October
McLean, NY
- Average rainfall days in October: 16.3 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in October
McLean, NY
- Average snowfall in October: 0.39"
The month with the highest snowfall is February (9.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
McLean, NY
- Average snowfall days in October: 1.8 days
The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
McLean, NY
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in October: 4h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in October
McLean, NY
- Average sunshine days in October: 11.6 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (5.1 days).
Average UV index in October
McLean, NY
- Average UV index in October: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in October
McLean, NY
- Average cloud cover in October: 56
The month with the most cloud cover is February (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in October
McLean, NY
- Average visibility in October: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
McLean, New York, USA
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