December weather forecast
Gary, MN

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Weather in December

December, the first month of the winter in Gary, is still a freezing cold month, with temperature in the range of an average high of 20.1°F (-6.6°C) and an average low of 9°F (-12.8°C).

Temperature

Gary's weather undergoes a significant change with the arrival of December, as the average high-temperature drops from a wintry 36.3°F (2.4°C) in November to a freezing cold 20.1°F (-6.6°C). During December, the temperature is averaged to a low of 9°F (-12.8°C) at night.

Humidity

The average relative humidity in December in Gary is 89%.

Rainfall

In Gary, Minnesota, during December, the rain falls for 2.5 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 101.8 rainfall days, and 17.44" (443mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Gary, Minnesota. December is the month with the most snowfall. Snow falls for 13.5 days and accumulates 4.49" (114mm) of snow.

Daylight

The month with the shortest days in Gary is December, with an average of 8h and 30min of daylight.
On the first day of the month, sunrise is at 7:52 am and sunset at 4:36 pm. On the last day of December, in Gary, Minnesota, sunrise is at 8:12 am and sunset at 4:44 pm CST.

Sunshine

In Gary, the average sunshine in December is 3.1h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 1 translates into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To guard against the harmful effects of the Sun, minimize exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

How cold is December in Gary?

During December, Gary experiences an average high-temperature of 20.1°F (-6.6°C) and a low-temperature of 9°F (-12.8°C).

What is the average humidity in December in Gary?

In December, the average relative humidity in Gary is 89%.

How much does it rain in Gary in December?

In Gary, during December, the rain falls for 2.5 days and regularly aggregates up to 0.91" (23mm) of precipitation.

When does it snow the most in Gary?

December is the month with the most snowfall. Snow falls for 13.5 days and accumulates 4.49" (114mm) of snow.

How much does it snow in Gary in December?

In December, it is snowing for 13.5 days. Throughout December, 4.49" (114mm) of snow is accumulated.

What is the month with the shortest days in Gary?

December has the shortest days of the year, with an average of 8h and 30min of daylight.

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

In Gary, Minnesota, the average day length in December is 8h and 32min.

What time are sunrise and sunset in December in Gary?

On the first day of December in Gary, Minnesota, sunrise is at 7:52 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 8:12 am and sunset at 4:44 pm CST.

How many hours of sunshine does Gary have in December?

In December, the average sunshine duration in Gary is 3.1h.

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

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Gary, Minnesota.

What is the UV index reading in December in Gary?

The average daily maximum UV index in December in Gary is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Gary, MN

Average temperature in December - Gary, MN
  • Average high temperature in December: 20.1°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (15.6°F).

  • Average low temperature in December: 9°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (1°F).

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Average pressure in December
Gary, MN

Average pressure in December - Gary, MN
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in December
Gary, MN

Average wind speed in December - Gary, MN
  • Average wind speed in December: 9.4mph

The windiest month (with the highest average wind speed) is October (10.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

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Average humidity in December
Gary, MN

Average humidity in December - Gary, MN
  • Average humidity in December: 89%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (63%).

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Average rainfall in December
Gary, MN

Average rainfall in December - Gary, MN
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in December
Gary, MN

Average rainfall days in December - Gary, MN
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is June (15.6 days).
The month with the least rainy days is January (1.5 days).

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Average snowfall in December
Gary, MN

Average snowfall in December - Gary, MN
  • Average snowfall in December: 4.49"

The month with the highest snowfall is December (4.49").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Gary, MN

Average snowfall days in December - Gary, MN
  • Average snowfall days in December: 13.5 days

The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Gary, MN

Average daylight in December / Average sunshine in December - Gary, MN
  • Average daylight in December: 8h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

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Average sunshine days in December
Gary, MN

Average sunshine days in December - Gary, MN
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is June (11.5 days).

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Average UV index in December
Gary, MN

Average UV index in December - Gary, MN
  • 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, February, November and December (UV index 1).

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Average cloud cover in December
Gary, MN

Average cloud cover in December - Gary, MN
  • Average cloud cover in December: 67

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in December
Gary, MN

Average visibility in December - Gary, MN
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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Gary, Minnesota, USA

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