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 comes with a shift in the average high-temperature, falling from a chilly 43.9°F (6.6°C) in November to an icy 33.3°F (0.7°C). Summer Hill's nighttime temperatures in December see a subtle dip to an average of 24.4°F (-4.2°C).Humidity
The average relative humidity in December is 87%.Rainfall
In December, in Summer Hill, the rain falls for 8.1 days. Throughout December, 1.42" (36mm) of precipitation is accumulated. In Summer Hill, during the entire year, the rain falls for 143 days and collects up to 21.3" (541mm) of precipitation.Snowfall
Months with snowfall in Summer Hill are January through May, October through December. In Summer Hill, in December, during 12.5 snowfall days, 3.9" (99mm) of snow is typically accumulated. In Summer Hill, during the entire year, snow falls for 68.6 days and aggregates up to 18.98" (482mm) of snow.Daylight
December has the shortest days of the year in Summer Hill, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:16 am and sunset at 4:32 pm. On the last day of December, in Summer Hill, sunrise is at 7:35 am and sunset at 4:41 pm EST.
Sunshine
The average sunshine in December is 3h.UV index
January, February 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 unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
How cold is it in Summer Hill in December?
What is the average humidity in December in Summer Hill?
How many days does it rain in December in Summer Hill?
How many days does it snow in December in Summer Hill?
What is the month with the shortest days in Summer Hill?
What is the average length of the day in December in Summer Hill?
When is the sunrise / sunset in December in Summer Hill?
How many hours of sunshine does Summer Hill have in December?
What is the month with the lowest UV index in Summer Hill?
What is the UV index reading in December in Summer Hill?
Average temperature in December
Summer Hill, NY
- Average high temperature in December: 33.3°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 (27.5°F).
- Average low temperature in December: 24.4°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Summer Hill, NY
- Average pressure in December: 30.07"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 December
Summer Hill, NY
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in December
Summer Hill, NY
- Average humidity in December: 87%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in December
Summer Hill, NY
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in December
Summer Hill, NY
- Average rainfall days in December: 8.1 days
The months with the highest number of rainy days are May and July (17.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in December
Summer Hill, NY
- Average snowfall in December: 3.9"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Summer Hill, NY
- Average snowfall days in December: 12.5 days
The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Summer Hill, NY
- Average daylight in December: 9h and 1min
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 December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Summer Hill, NY
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Summer Hill, NY
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Summer Hill, NY
- Average cloud cover in December: 70
The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in December
Summer Hill, NY
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Summer Hill, New York, USA
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