December weather forecast
Roosevelt, NY

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Weather in December

The first month of the winter, December, is still a chilly month in Roosevelt, New York, with an average temperature ranging between min 36.1°F (2.3°C) and max 43.7°F (6.5°C).

Temperature

Roosevelt's December weather shows a modest shift in high-temperatures, falling from November's fresh 51.6°F (10.9°C) to a frosty 43.7°F (6.5°C). With a barely noticeable fluctuation in temperature, Roosevelt reaches an average low of 36.1°F (2.3°C) during the December nights.

Humidity

In December, the average relative humidity is 74%.

Rainfall

In December, the rain falls for 9.7 days. Throughout December, 0.87" (22mm) of precipitation is accumulated. Throughout the year, in Roosevelt, there are 112.1 rainfall days, and 8.66" (220mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, October through December. In Roosevelt, during December, snow falls for 2.5 days and regularly aggregates up to 0.35" (9mm) of snow. Throughout the year, there are 14.1 snowfall days, and 1.34" (34mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 6:59 am and sunset at 4:27 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:37 pm EST.

Sunshine

In Roosevelt, the average sunshine in December is 5h.

UV index

January through March and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 2 during December leads to these advisories:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In Roosevelt, 43.7°F (6.5°C) is the average high-temperature and 36.1°F (2.3°C) is the average low-temperature during December.

What is the average humidity in December in Roosevelt?

In Roosevelt, the average relative humidity in December is 74%.

How much does it rain in December?

In Roosevelt, in December, during 9.7 rainfall days, 0.87" (22mm) of precipitation is typically accumulated.

How much does it snow in Roosevelt in December?

In Roosevelt, in December, snow falls for 2.5 days, with typically accumulated 0.35" (9mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

How many hours of daylight does Roosevelt have in December?

The average day length in December is 9h and 19min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 6:59 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:37 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 5h.

When is the lowest UV index?

January through March and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's 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
Roosevelt, NY

Average temperature in December - Roosevelt, NY
  • Average high temperature in December: 43.7°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 (37.6°F).

  • Average low temperature in December: 36.1°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).

Average pressure in December
Roosevelt, NY

Average pressure in December - Roosevelt, 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
Roosevelt, NY

Average wind speed in December - Roosevelt, NY
  • Average wind speed in December: 12.5mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

Average humidity in December
Roosevelt, NY

Average humidity in December - Roosevelt, NY
  • Average humidity in December: 74%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (71%).

Average rainfall in December
Roosevelt, NY

Average rainfall in December - Roosevelt, NY
  • Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days in December
Roosevelt, NY

Average rainfall days in December - Roosevelt, NY
  • Average rainfall days in December: 9.7 days

The month with the highest number of rainy days is July (12.4 days).
The month with the least rainy days is January (6.2 days).

Average snowfall in December
Roosevelt, NY

Average snowfall in December - Roosevelt, NY
  • Average snowfall in December: 0.35"

The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in December
Roosevelt, NY

Average snowfall days in December - Roosevelt, NY
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Roosevelt, NY
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in December
Roosevelt, NY

Average sunshine days in December - Roosevelt, NY
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (15.1 days).

Average UV index in December
Roosevelt, NY

Average UV index in December - Roosevelt, NY
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).

Average cloud cover in December
Roosevelt, NY

Average cloud cover in December - Roosevelt, NY
  • Average cloud cover in December: 48

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in December
Roosevelt, NY

Average visibility in December - Roosevelt, NY
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Roosevelt, New York, USA

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