December weather forecast
Troy, NY

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Weather in December

December sees Troy plunging into winter as the year wraps up. The cold temperatures from November intensify with lows reaching 24.3°F (-4.3°C). The city drapes itself in winter cloaks, with frost adorning windows and snowflakes swirling in the wind. Hints of snow start appearing towards the end of the month, heralding the arrival of a snowy festive season. Overall, December brings a mix of chilly temperatures, limited sunshine, and potential snow, setting the tone for a winter wonderland in Troy.

Temperature

With December's arrival, Troy's weather changes as the average high-temperature falls from a chilly 45.5°F (7.5°C) in November to a cold 34.3°F (1.3°C). Troy observes an average low-temperature of 24.3°F (-4.3°C) during December.

Humidity

The average relative humidity in December is 81%.

Rainfall

In Troy, during December, the rain falls for 12.1 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Troy, New York, during the entire year, the rain falls for 162.8 days and collects up to 31.02" (788mm) of precipitation.

Snowfall

Months with snowfall in Troy, New York, are January through May, October through December. In Troy, in December, snow falls for 8.6 days, with typically accumulated 5.55" (141mm) of snow. Throughout the year, there are 50.4 snowfall days, and 27.2" (691mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:22 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:31 pm EST.

Sunshine

In Troy, the average sunshine in December is 4.3h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.
Note: An average UV index of 2 in December transforms into this advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.

Frequently asked questions

How cold is December?

In Troy, in December, the average high-temperature is 34.3°F (1.3°C), and the average low-temperature is 24.3°F (-4.3°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 81%.

How many days does it rain in December?

In Troy, during December, the rain falls for 12.1 days and regularly aggregates up to 2.72" (69mm) of precipitation.

How much does it snow in December?

In Troy, during December, snow falls for 8.6 days and regularly aggregates up to 5.55" (141mm) of snow.

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.

What is the average length of the day in December?

The average day length in December is 9h and 6min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:31 pm EST.

How long on average sun shines in December in Troy?

The average sunshine duration in December in Troy is 4.3h.

What are the months with the lowest UV index?

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

How high is the UV index in December in Troy?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Troy, NY

Average temperature in December - Troy, NY
  • Average high temperature in December: 34.3°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in December: 24.3°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
Troy, NY

Average pressure in December - Troy, 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
Troy, NY

Average wind speed in December - Troy, NY
  • Average wind speed in December: 7.6mph

The windiest months (with the highest average wind speed) are January, February and March (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in December
Troy, NY

Average humidity in December - Troy, NY
  • Average humidity in December: 81%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).

Average rainfall in December
Troy, NY

Average rainfall in December - Troy, NY
  • Average rainfall in December: 2.72"

The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in December
Troy, NY

Average rainfall days in December - Troy, NY
  • Average rainfall days in December: 12.1 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).

Average snowfall in December
Troy, NY

Average snowfall in December - Troy, NY
  • Average snowfall in December: 5.55"

The month with the highest snowfall is February (7.64").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Troy, NY

Average snowfall days in December - Troy, NY
  • Average snowfall days in December: 8.6 days

The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Troy, 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: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in December
Troy, NY

Average sunshine days in December - Troy, NY
  • Average sunshine days in December: 14.1 days

The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is April (10.6 days).

Average UV index in December
Troy, NY

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

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, October, November and December (UV index 2).

Average cloud cover in December
Troy, NY

Average cloud cover in December - Troy, NY
  • Average cloud cover in December: 54

The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in December
Troy, NY

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

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

Troy, New York, USA

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