December weather forecast
Gary, FL

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Weather in December

December, the first month of the winter in Gary, is also an agreeable month, with an average temperature fluctuating between 72°F (22.2°C) and 58.1°F (14.5°C).

Temperature

With December's advent, Gary sees an average high-temperature of a pleasant 72°F (22.2°C), subtly shifted from November's 76.1°F (24.5°C). Gary in December experiences a low-temperature average of 58.1°F (14.5°C).

Humidity

With an average relative humidity of 75%, December is the most humid month.

Rainfall

In Gary, in December, during 8.8 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. Throughout the year, there are 178.2 rainfall days, and 32.87" (835mm) of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 10h and 24min of daylight.
On the first day of December, sunrise is at 7:04 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:45 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 6.3h of sunshine.

UV index

The average daily maximum UV index in December in Gary is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 5 suggests these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

An average high-temperature, in December, in Gary, is 72°F (22.2°C) and the average low-temperature is 58.1°F (14.5°C). In October, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 89.6°F (32°C).

What is the most humid month?

With an average relative humidity of 75%, December is the most humid month.

What is the average humidity in December?

In December, the average relative humidity is 75%.

How much does it rain in December?

In Gary, during December, the rain falls for 8.8 days and regularly aggregates up to 1.69" (43mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 24min of daylight.

What is the average length of the day in December?

The average day length in December is 10h and 25min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:04 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:45 pm EST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 6.3h of sunshine.

How many hours of sunshine does Gary have in December?

In Gary, the average sunshine duration in December is 6.3h.

What is the UV index intensity in December in Gary?

In Gary, the average daily maximum UV index in December is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Gary, FL

Average temperature in December - Gary, FL
  • Average high temperature in December: 72°F

The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is January (67.8°F).

  • Average low temperature in December: 58.1°F

The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (53.4°F).

Average pressure in December
Gary, FL

Average pressure in December - Gary, FL
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

Average wind speed in December
Gary, FL

Average wind speed in December - Gary, FL
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

Average humidity in December
Gary, FL

Average humidity in December - Gary, FL
  • Average humidity in December: 75%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is May (69%).

Average rainfall in December
Gary, FL

Average rainfall in December - Gary, FL
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is July (5.67").
The driest month (with the least rainfall) is November (1.26").

Average rainfall days in December
Gary, FL

Average rainfall days in December - Gary, FL
  • Average rainfall days in December: 8.8 days

The month with the highest number of rainy days is August (25.3 days).
The month with the least rainy days is November (8.2 days).

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

Average daylight in December / Average sunshine in December - Gary, FL
  • Average daylight in December: 10h and 2min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in December: 6h and 2min

The month with the most sunshine is May (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).

Average sunshine days in December
Gary, FL

Average sunshine days in December - Gary, FL
  • Average sunshine days in December: 18.9 days

The month with the most sunshine days is November (20.3 days).
The months with the least sunshine days are July and August (4.3 days).

Average UV index in December
Gary, FL

Average UV index in December - Gary, FL
  • Average UV index in December: 5

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).

Average cloud cover in December
Gary, FL

Average cloud cover in December - Gary, FL
  • Average cloud cover in December: 33

The months with the most cloud cover are January and December (Cloud cover 33).
The month with the least cloud cover is May (Cloud cover 24).

Average visibility in December
Gary, FL

Average visibility in December - Gary, FL
  • Average visibility in December: 6mi

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

Gary, Florida, USA

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