December weather forecast
Trumansburg, NY

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The stunning full colors of the fall in the red, brown, and golden trees around the scenic high Taughannock Falls in Trmansburg, New York
The stunning full colors of the fall in the red, brown, and golden trees around the scenic high Taughannock Falls in Trmansburg, New York

Weather in December

December, the first month of the winter in Trumansburg, is also an icy month, with an average temperature fluctuating between 34°F (1.1°C) and 24.8°F (-4°C).

Temperature

The onset of December coincides with a reduction in the average high-temperature, falling from a chilly 44.4°F (6.9°C) in November to a wintry 34°F (1.1°C). Throughout December, an average low-temperature of 24.8°F (-4°C) is experienced.

Humidity

The average relative humidity in December is 86%.

Rainfall

In Trumansburg, during December, the rain falls for 9.8 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Trumansburg, during the entire year, the rain falls for 167.1 days and collects up to 31.65" (804mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 16 days. Throughout December, 6.77" (172mm) of snow is accumulated. Throughout the year, there are 83.4 snowfall days, and 34.65" (880mm) 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 7:17 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:36 am and sunset at 4:43 pm EST.

Sunshine

In Trumansburg, the average sunshine in December is 2.9h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 1 during December translates into these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In Trumansburg, in December, the average high-temperature is 34°F (1.1°C), and the average low-temperature is 24.8°F (-4°C).

What is the average humidity in December?

In December, the average relative humidity is 86%.

How many days does it rain in December?

In December, the rain falls for 9.8 days. Throughout December, 2.36" (60mm) of precipitation is accumulated.

How many days does it snow in December in Trumansburg?

In December, it is snowing for 16 days. Throughout December, 6.77" (172mm) 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 Trumansburg have in December?

The average day length in December is 9h and 7min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:17 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:43 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 2.9h.

What are the months with the lowest UV index?

The months with the lowest UV index are January and December, 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 reading of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
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
Trumansburg, NY

Average temperature in December - Trumansburg, NY
  • Average high temperature in December: 34°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in December: 24.8°F

The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in December
Trumansburg, NY

Average pressure in December - Trumansburg, 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
Trumansburg, NY

Average wind speed in December - Trumansburg, NY
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity in December
Trumansburg, NY

Average humidity in December - Trumansburg, NY
  • Average humidity in December: 86%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is April (78%).

Average rainfall in December
Trumansburg, NY

Average rainfall in December - Trumansburg, NY
  • Average rainfall in December: 2.36"

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (1.93").

Average rainfall days in December
Trumansburg, NY

Average rainfall days in December - Trumansburg, NY
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in December
Trumansburg, NY

Average snowfall in December - Trumansburg, NY
  • Average snowfall in December: 6.77"

The month with the highest snowfall is February (8.11").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Trumansburg, NY

Average snowfall days in December - Trumansburg, NY
  • Average snowfall days in December: 16 days

The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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 6min).

  • 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 36min).

Average sunshine days in December
Trumansburg, NY

Average sunshine days in December - Trumansburg, NY
  • Average sunshine days in December: 8.6 days

The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (5.8 days).

Average UV index in December
Trumansburg, NY

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in December
Trumansburg, NY

Average cloud cover in December - Trumansburg, 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 36).

Average visibility in December
Trumansburg, NY

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

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

Trumansburg, New York, USA

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