December weather forecast
Granville, NY

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Weather in December

December, the first month of the winter in Granville, is also a subzero cold month, with temperature in the range of an average high of 31.8°F (-0.1°C) and an average low of 22.1°F (-5.5°C).

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.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Granville?

In December, in Granville, the average high-temperature is 31.8°F (-0.1°C), and the average low-temperature is 22.1°F (-5.5°C).

What is the average humidity in December in Granville?

The average relative humidity in December in Granville is 82%.

How many days does it rain in December in Granville?

In Granville, in December, during 9.5 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

How much does it snow in Granville in December?

In Granville, during December, snow falls for 10.2 days and regularly aggregates up to 5.51" (140mm) of snow.

What is the month with the shortest days in Granville?

With an average of 9h and 0min of daylight, December has the shortest days of the year in Granville.

What is the average length of the day in December in Granville?

The average day length in December in Granville is 9h and 1min.

When is the sunrise / sunset in December in Granville?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:27 pm EST.

How many hours of sunshine does Granville have in December?

In Granville, New York, the average sunshine duration in December is 3.9h.

When is the lowest UV index in Granville?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in December in Granville?

In Granville, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Granville, NY

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / 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 - 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 - 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 - 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 - 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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