December weather forecast
Constantia, NY

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Weather in December

December, the first month of the winter in Constantia, is also an icy month, with temperature in the range of an average high of 33.4°F (0.8°C) and an average low of 25.2°F (-3.8°C).

Temperature

Observing a mild shift, the average high-temperature during December reduces from November's chilly 44.2°F (6.8°C) to a wintry 33.4°F (0.8°C). Constantia, during the December nights, maintains an average temperature of 25.2°F (-3.8°C), closely aligned with its daytime readings.

Humidity

In Constantia, the average relative humidity in December is 85%.

Rainfall

In December, the rain falls for 11.7 days. Throughout December, 2.05" (52mm) of precipitation is accumulated. In Constantia, New York, during the entire year, the rain falls for 169.8 days and collects up to 24.88" (632mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. December is the month with the most snowfall in Constantia. Snow falls for 16.6 days and accumulates 6.06" (154mm) of snow.

Daylight

December has the shortest days of the year in Constantia, with an average of 9h and 0min of daylight.
On the first day of December, sunrise is at 7:16 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:38 pm EST.

Sunshine

In December, the average sunshine is 2.9h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During December, 1 as the daily maximum UV index converts into the following advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Avoiding the Sun during its peak radiation time around midday is a healthy practice. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In December, in Constantia, the average high-temperature is 33.4°F (0.8°C), and the average low-temperature is 25.2°F (-3.8°C).

What is the average humidity in December?

In Constantia, the average relative humidity in December is 85%.

How many days does it rain in December in Constantia?

In Constantia, during December, the rain falls for 11.7 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When does it snow the most in Constantia?

The month with the most snowfall is December, when snow falls for 16.6 days and typically aggregates up to 6.06" (154mm) of snow.

How much does it snow in December?

In Constantia, in December, snow falls for 16.6 days, with typically accumulated 6.06" (154mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Constantia have in December?

In Constantia, the average day length in December is 9h and 2min.

When are sunrise and sunset in December?

On the first day of December in Constantia, sunrise is at 7:16 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:38 pm EST.

How many hours of sunshine does Constantia have in December?

The average sunshine duration in December is 2.9h.

What is the month with the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 1.

What is the UV index intensity in December?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes 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
Constantia, NY

Average temperature in December - Constantia, NY
  • Average high temperature in December: 33.4°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in December: 25.2°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in December
Constantia, NY

Average pressure in December - Constantia, 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 (29.92"Hg).

Average wind speed in December
Constantia, NY

Average wind speed in December - Constantia, NY
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity in December
Constantia, NY

Average humidity in December - Constantia, NY
  • Average humidity in December: 85%

The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is April (78%).

Average rainfall in December
Constantia, NY

Average rainfall in December - Constantia, NY
  • Average rainfall in December: 2.05"

The wettest month (with the highest rainfall) is May (2.64").
The driest months (with the least rainfall) are March and September (1.61").

Average rainfall days in December
Constantia, NY

Average rainfall days in December - Constantia, NY
  • Average rainfall days in December: 11.7 days

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is February (8.8 days).

Average snowfall in December
Constantia, NY

Average snowfall in December - Constantia, NY
  • Average snowfall in December: 6.06"

The month with the highest snowfall is December (6.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Constantia, NY

Average snowfall days in December - Constantia, NY
  • Average snowfall days in December: 16.6 days

The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Constantia, NY
  • Average daylight in December: 9h and 0min

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

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).

Average sunshine days in December
Constantia, NY

Average sunshine days in December - Constantia, NY
  • Average sunshine days in December: 6.4 days

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (5.2 days).

Average UV index in December
Constantia, NY

Average UV index in December - Constantia, NY
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Constantia, NY

Average cloud cover in December - Constantia, NY
  • Average cloud cover in December: 71

The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in December
Constantia, NY

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

The months with the highest visibility are April, May, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, June, July and December (5mi).

Constantia, New York, USA

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