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 shift to December brings a decrease in the average high-temperature, falling from a chilly 43°F (6.1°C) in November to a subzero cold 31.8°F (-0.1°C). During the month of December, Granville anticipates a mean low-temperature of 22.1°F (-5.5°C).Humidity
In Granville, New York, the average relative humidity in December is 82%.Rainfall
In Granville, in December, during 9.5 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. In Granville, during the entire year, the rain falls for 153.4 days and collects up to 27.8" (706mm) of precipitation.Snowfall
Months with snowfall in Granville, New York, are January through May, October through December. In Granville, in December, during 10.2 snowfall days, 5.51" (140mm) of snow is typically accumulated. Throughout the year, there are 59.7 snowfall days, and 32.28" (820mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:06 am and sunset at 4:18 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:27 pm EST.
Sunshine
In Granville, the average sunshine in December is 3.9h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 1 suggests these recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
How cold is December in Granville?
What is the average humidity in December in Granville?
How many days does it rain in December in Granville?
How much does it snow in Granville in December?
What is the month with the shortest days in Granville?
What is the average length of the day in December in Granville?
When is the sunrise / sunset in December in Granville?
How many hours of sunshine does Granville have in December?
When is the lowest UV index in Granville?
What is the UV index intensity in December in Granville?
Average temperature in December
Granville, NY
- Average high temperature in December: 31.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in December: 22.1°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 (14.2°F).
Average pressure in December
Granville, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Granville, NY
- Average wind speed in December: 6.7mph
The windiest months (with the highest average wind speed) are January and April (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Granville, NY
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Granville, NY
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January, February and March (1.89").
Average rainfall days in December
Granville, NY
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in December
Granville, NY
- Average snowfall in December: 5.51"
The month with the highest snowfall is February (8.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Granville, NY
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is February (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Granville, NY
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in December
Granville, NY
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in December
Granville, NY
- Average UV index in December: 1
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 and December (UV index 1).
Average cloud cover in December
Granville, NY
- Average cloud cover in December: 59
The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Granville, NY
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Granville, New York, USA
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