December weather forecast
Saint James, NY

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Weather in December

The first month of the winter, December, is also a frosty month in Saint James, New York, with temperature in the range of an average high of 44.1°F (6.7°C) and an average low of 37.2°F (2.9°C).

Temperature

Saint James's progression into December involves a minor drop in the average high-temperature, slightly receding from a cool 52.3°F (11.3°C) in November to a frosty 44.1°F (6.7°C). During December, Saint James perceives a slight decrease in temperature from daytime highs, settling at an average low of 37.2°F (2.9°C).

Humidity

The average relative humidity in December is 74%.

Rainfall

The month with the most rainfall is December, when the rain falls for 12.3 days and typically aggregates up to 3.74" (95mm) of precipitation.

Snowfall

January through March, May, October and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 2.4 snowfall days, it receives 1.22" (31mm) of snow. Throughout the year, there are 14.7 snowfall days, and 6.14" (156mm) 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 6:58 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:16 am and sunset at 4:34 pm EST.

Sunshine

In December, the average sunshine is 4.9h.

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 of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the UV index of 2 transforms into the following advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. When the Sun is at its strongest around midday, find shade and limit exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

The high-temperature, in December, in Saint James, is 44.1°F (6.7°C), while the low-temperature averages to 37.2°F (2.9°C).

What is the average humidity in December?

In December, the average relative humidity is 74%.

What is the rainiest month?

The month with the most rainfall is December, when the rain falls for 12.3 days and typically aggregates up to 3.74" (95mm) of precipitation.

How much does it rain in December?

In December, the rain falls for 12.3 days. Throughout December, 3.74" (95mm) of precipitation is accumulated.

When does it start snowing?

December is the first month it typically snows. Throughout December, in the average 2.4 snowfall days, it receives 1.22" (31mm) 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 Saint James have in December?

The average day length in December is 9h and 18min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 6:58 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:34 pm EST.

How long on average sun shines in December in Saint James?

In December, the average sunshine duration is 4.9h.

What is the month with 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 intensity in December in Saint James?

In Saint James, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Saint James, NY

Average temperature in December - Saint James, NY
  • Average high temperature in December: 44.1°F

The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 37.2°F

The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in December
Saint James, NY

Average pressure in December - Saint James, NY
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Saint James, NY

Average wind speed in December - Saint James, NY
  • Average wind speed in December: 13.4mph

The windiest month (with the highest average wind speed) is January (13.8mph).
The calmest months (with the lowest average wind speed) are July and August (9mph).

Average humidity in December
Saint James, NY

Average humidity in December - Saint James, NY
  • Average humidity in December: 74%

The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).

Average rainfall in December
Saint James, NY

Average rainfall in December - Saint James, NY
  • Average rainfall in December: 3.74"

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is January (2.17").

Average rainfall days in December
Saint James, NY

Average rainfall days in December - Saint James, NY
  • Average rainfall days in December: 12.3 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
Saint James, NY

Average snowfall in December - Saint James, NY
  • Average snowfall in December: 1.22"

The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, June, July, August, September and November (0").

Average snowfall days in December
Saint James, NY

Average snowfall days in December - Saint James, NY
  • Average snowfall days in December: 2.4 days

The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Saint James, NY

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 5min

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

Average sunshine days in December
Saint James, NY

Average sunshine days in December - Saint James, NY
  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in December
Saint James, NY

Average UV index in December - Saint James, 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
Saint James, NY

Average cloud cover in December - Saint James, 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
Saint James, NY

Average visibility in December - Saint James, 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).

Saint James, New York, USA

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