Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The onset of December is marked by a minor decrease in temperature, transitioning from a fresh 53.1°F (11.7°C) in November to a chilly 44.2°F (6.8°C). During December, Sleepy Hollow Township witnesses a consistent average low-temperature of 32.5°F (0.3°C).Humidity
January, February and December, with an average relative humidity of 81%, are the most humid months.Rainfall
In Sleepy Hollow Township, in December, it is raining for 12.7 days, with typically 3.23" (82mm) of accumulated precipitation. Throughout the year, there are 174.3 rainfall days, and 34.45" (875mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 8 days. Throughout December, 3.46" (88mm) of snow is accumulated. In Sleepy Hollow Township, during the entire year, snow falls for 40.5 days and aggregates up to 16.89" (429mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:26 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:17 pm EST.
Sunshine
In Sleepy Hollow Township, the average sunshine in December is 4.1h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the most humid month in Sleepy Hollow Township?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Sleepy Hollow Township have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Sleepy Hollow Township, WV
- Average high temperature in December: 44.2°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 32.5°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in December
Sleepy Hollow Township, WV
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Sleepy Hollow Township, WV
- Average wind speed in December: 6.2mph
The windiest months (with the highest average wind speed) are January, February and April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Sleepy Hollow Township, WV
- Average humidity in December: 81%
The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Sleepy Hollow Township, WV
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Sleepy Hollow Township, WV
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is November (10.7 days).
Average snowfall in December
Sleepy Hollow Township, WV
- Average snowfall in December: 3.46"
The month with the highest snowfall is January (4.25").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Sleepy Hollow Township, WV
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sleepy Hollow Township, WV
- Average daylight in December: 9h and 3min
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 December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Sleepy Hollow Township, WV
- Average sunshine days in December: 12.4 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (9 days).
Average UV index in December
Sleepy Hollow Township, WV
- Average UV index in December: 2
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 and December (UV index 2).
Average cloud cover in December
Sleepy Hollow Township, WV
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Sleepy Hollow Township, WV
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Sleepy Hollow Township, West Virginia, USA
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