December weather forecast
Oneonta, NY

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Weather in December

December, the first month of the winter in Oneonta, is also a wintry month, with temperature in the range of an average high of 32.9°F (0.5°C) and an average low of 22.5°F (-5.3°C).

Temperature

Oneonta's progression into December includes a drop in the average high-temperature, from an icy 42.4°F (5.8°C) in November to a still cold 32.9°F (0.5°C). During the month of December, an average temperature of 22.5°F (-5.3°C) is noted during the nights.

Humidity

The months with the highest humidity are January, February and December, with an average relative humidity of 87%.

Rainfall

In Oneonta, in December, during 10.3 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, in Oneonta, there are 161.1 rainfall days, and 31.18" (792mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Oneonta, in December, during 16.7 snowfall days, 8.35" (212mm) of snow is typically accumulated. Throughout the year, there are 92.9 snowfall days, and 48.23" (1225mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 7:10 am and sunset at 4:28 pm. On the last day of December, sunrise is at 7:29 am and sunset at 4:37 pm EST.

Sunshine

In December, the average sunshine is 2.8h.

UV index

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: During December, 1 as the daily maximum UV index converts into the following advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Jun 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

During December, Oneonta experiences an average high-temperature of 32.9°F (0.5°C) and a low-temperature of 22.5°F (-5.3°C).

What are the most humid months?

January, February and December, with an average relative humidity of 87%, are most humid months.

What is the average humidity in December?

The average relative humidity in December is 87%.

How many days does it rain in December?

In Oneonta, in December, during 10.3 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 16.7 days. Throughout December, 8.35" (212mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 6min of daylight, December has the shortest days of the year.

How many hours of daylight does Oneonta have in December?

The average day length in December is 9h and 8min.

What time are sunrise and sunset in December in Oneonta?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:37 pm EST.

How many hours of sunshine does Oneonta have in December?

In December, the average sunshine duration is 2.8h.

When is the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Oneonta, NY

Average temperature in December - Oneonta, NY
  • Average high temperature in December: 32.9°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in December: 22.5°F

The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

Average pressure in December
Oneonta, NY

Average pressure in December - Oneonta, 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
Oneonta, NY

Average wind speed in December - Oneonta, NY
  • Average wind speed in December: 9.3mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in December
Oneonta, NY

Average humidity in December - Oneonta, NY
  • Average humidity in December: 87%

The months with the highest relative humidity are January, February and December (87%).
The months with the lowest relative humidity are April and May (79%).

Average rainfall in December
Oneonta, NY

Average rainfall in December - Oneonta, NY
  • Average rainfall in December: 2.4"

The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in December
Oneonta, NY

Average rainfall days in December - Oneonta, NY
  • Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (6.6 days).

Average snowfall in December
Oneonta, NY

Average snowfall in December - Oneonta, NY
  • Average snowfall in December: 8.35"

The month with the highest snowfall is February (9.13").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Oneonta, NY

Average snowfall days in December - Oneonta, NY
  • Average snowfall days in December: 16.7 days

The month with the highest number of snowfall days is January (20.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Oneonta, NY

Average daylight in December / Average sunshine in December - Oneonta, NY
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).

Average sunshine days in December
Oneonta, NY

Average sunshine days in December - Oneonta, NY
  • Average sunshine days in December: 7.9 days

The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.5 days).

Average UV index in December
Oneonta, NY

Average UV index in December - Oneonta, 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, February, March, November and December (UV index 1).

Average cloud cover in December
Oneonta, NY

Average cloud cover in December - Oneonta, NY
  • Average cloud cover in December: 73

The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 41).

Average visibility in December
Oneonta, NY

Average visibility in December - Oneonta, NY
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

Oneonta, New York, USA

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