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
December comes with a drop in the average high-temperature, falling from November's wintry 36°F (2.2°C) to a subzero cold 24.1°F (-4.4°C). December registers an average low temperature of 15.1°F (-9.4°C), subtly lower than the daytime maximum.Humidity
In Sleepy Hollow, the average relative humidity in December is 90%.Rainfall
In Sleepy Hollow, in December, during 5.3 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, in Sleepy Hollow, Michigan, there are 128.5 rainfall days, and 24.76" (629mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall in Sleepy Hollow is December, when snow falls for 23.8 days and typically aggregates up to 11.18" (284mm) of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 8:20 am and sunset at 5:11 pm. On the last day of December, sunrise is at 8:40 am and sunset at 5:20 pm EST.
Sunshine
In Sleepy Hollow, the average sunshine in December is 2.2h.UV index
January, March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 1 during December leads to these advisories:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Experience reduced UV exposure by about half when donning a wide-brim hat. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is it in Sleepy Hollow in December?
What is the average humidity in December in Sleepy Hollow?
How much does it rain in Sleepy Hollow in December?
When does it snow the most in Sleepy Hollow?
How much does it snow in Sleepy Hollow in December?
What is the month with the shortest days in Sleepy Hollow?
What is the average length of the day in December in Sleepy Hollow?
What time are sunrise and sunset in December in Sleepy Hollow?
How long on average sun shines in December in Sleepy Hollow?
When is the lowest UV index in Sleepy Hollow?
What is the UV index intensity in December in Sleepy Hollow?
Average temperature in December
Sleepy Hollow, MI
- Average high temperature in December: 24.1°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (18.5°F).
- Average low temperature in December: 15.1°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in December
Sleepy Hollow, MI
- Average pressure in December: 30.06"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Sleepy Hollow, MI
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is November (8.7mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in December
Sleepy Hollow, MI
- Average humidity in December: 90%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Sleepy Hollow, MI
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in December
Sleepy Hollow, MI
- Average rainfall days in December: 5.3 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in December
Sleepy Hollow, MI
- Average snowfall in December: 11.18"
The month with the highest snowfall is December (11.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sleepy Hollow, MI
- Average snowfall days in December: 23.8 days
The month with the highest number of snowfall days is January (26.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Sleepy Hollow, MI
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 2h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in December
Sleepy Hollow, MI
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is January (5 days).
Average UV index in December
Sleepy Hollow, MI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, March, November and December (UV index 1).
Average cloud cover in December
Sleepy Hollow, MI
- Average cloud cover in December: 79
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
Sleepy Hollow, MI
- Average visibility in December: 4mi
The months with the highest visibility are May, June and July (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Sleepy Hollow, Michigan, USA
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