December weather forecast
Syracuse, IN

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Weather in December

The first month of the winter, December, is also a wintry month in Syracuse, Indiana, with temperature in the range of an average high of 35.6°F (2°C) and an average low of 25.7°F (-3.5°C).

Temperature

Onset of December comes with a temperature decline, the average high falling from a chilly 46.8°F (8.2°C) in November to a cold 35.6°F (2°C). The nighttime temperature in Syracuse, during December, averages of 25.7°F (-3.5°C).

Humidity

In December, the average relative humidity in Syracuse is 84%.

Rainfall

The month with the least rainfall in Syracuse is December, when the rain falls for 9.7 days and typically collects 1.61" (41mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Syracuse. In Syracuse, in December, during 13.3 snowfall days, 2.91" (74mm) of snow is typically accumulated. Throughout the year, there are 59.2 snowfall days, and 17.01" (432mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:50 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 5:23 pm EST.

Sunshine

The average sunshine in December is 3.6h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Frequently asked questions

How cold is it in Syracuse in December?

In Syracuse, in December, the average high-temperature is 35.6°F (2°C), and the average low-temperature is 25.7°F (-3.5°C).

What is the average humidity in December in Syracuse?

The average relative humidity in December in Syracuse is 84%.

What is the driest month in Syracuse?

December is the month with the least rainfall in Syracuse, Indiana. Rain falls for 9.7 days and accumulates 1.61" (41mm) of precipitation.

How many days does it rain in December in Syracuse?

In December, in Syracuse, Indiana, the rain falls for 9.7 days. Throughout December, 1.61" (41mm) of precipitation is accumulated.

How many days does it snow in December in Syracuse?

In Syracuse, Indiana, during December, snow falls for 13.3 days and regularly aggregates up to 2.91" (74mm) of snow.

What is the month with the shortest days in Syracuse?

The month with the shortest days in Syracuse is December, with an average of 9h and 12min of daylight.

What is the average length of the day in December in Syracuse?

In Syracuse, the average day length in December is 9h and 14min.

When is the sunrise / sunset in December in Syracuse?

In December, on the first day of the month, sunrise is at 7:50 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 5:23 pm EST.

How many hours of sunshine does Syracuse have in December?

In December, the average sunshine duration in Syracuse, Indiana, is 3.6h.

What are the months with the lowest UV index in Syracuse?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Syracuse.

How high is the UV index in December in Syracuse?

In December, the average daily maximum UV index in Syracuse, Indiana, is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Syracuse, IN

Average temperature in December - Syracuse, IN
  • Average high temperature in December: 35.6°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (29.5°F).

  • Average low temperature in December: 25.7°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure in December
Syracuse, IN

Average pressure in December - Syracuse, IN
  • Average pressure in December: 30.09"Hg

The months with the highest atmospheric pressure are January and November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Syracuse, IN

Average wind speed in December - Syracuse, IN
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity in December
Syracuse, IN

Average humidity in December - Syracuse, IN
  • Average humidity in December: 84%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in December
Syracuse, IN

Average rainfall in December - Syracuse, IN
  • Average rainfall in December: 1.61"

The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is December (1.61").

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Average rainfall days in December
Syracuse, IN

Average rainfall days in December - Syracuse, IN
  • Average rainfall days in December: 9.7 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (6.9 days).

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Average snowfall in December
Syracuse, IN

Average snowfall in December - Syracuse, IN
  • Average snowfall in December: 2.91"

The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Syracuse, IN

Average snowfall days in December - Syracuse, IN
  • Average snowfall days in December: 13.3 days

The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Syracuse, IN

Average daylight in December / Average sunshine in December - Syracuse, IN
  • Average daylight in December: 9h and 1min

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 12min).

  • Average sunshine in December: 3h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

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Average sunshine days in December
Syracuse, IN

Average sunshine days in December - Syracuse, IN
  • Average sunshine days in December: 11.4 days

The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is February (8.8 days).

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Average UV index in December
Syracuse, IN

Average UV index in December - Syracuse, IN
  • Average UV index in December: 1

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 and December (UV index 1).

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Average cloud cover in December
Syracuse, IN

Average cloud cover in December - Syracuse, IN
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in December
Syracuse, IN

Average visibility in December - Syracuse, IN
  • Average visibility in December: 5mi

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

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Syracuse, Indiana, USA

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