December weather forecast
Golconda, IL

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Weather in December

The first month of the winter, December, is also a frosty month in Golconda, Illinois, with an average temperature ranging between min 33.3°F (0.7°C) and max 45.5°F (7.5°C).

Temperature

The transition into December indicates a reduction in the average high-temperature, down to a chilly 45.5°F (7.5°C) from November's fresh 54.9°F (12.7°C). December brings Golconda a consistent average low-temperature of 33.3°F (0.7°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

In Golconda, in December, it is raining for 11.5 days, with typically 3.03" (77mm) of accumulated precipitation. Throughout the year, there are 160.7 rainfall days, and 36.73" (933mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In December, it is snowing for 2 days. Throughout December, 0.47" (12mm) of snow is accumulated. Throughout the year, there are 12.9 snowfall days, and 4.33" (110mm) of snow is accumulated.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:50 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:08 am and sunset at 4:46 pm CST.

Sunshine

In Golconda, the average sunshine in December is 4.9h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Frequently asked questions

What are December temperatures?

December temperatures vary between a high-temperature of 45.5°F (7.5°C) and a low-temperature of 33.3°F (0.7°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 86°F (30°C).

What is the average humidity in December?

In Golconda, the average relative humidity in December is 78%.

How much does it rain in Golconda in December?

In Golconda, in December, it is raining for 11.5 days, with typically 3.03" (77mm) of accumulated precipitation.

How much does it snow in December?

In Golconda, in December, during 2 snowfall days, 0.47" (12mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

What is the average length of the day in December?

In Golconda, Illinois, the average day length in December is 9h and 38min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 6:50 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 4:46 pm CST.

How many hours of sunshine does Golconda have in December?

In December, the average sunshine duration is 4.9h.

What are the months with the lowest UV index?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk 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
Golconda, IL

Average temperature in December - Golconda, IL
  • Average high temperature in December: 45.5°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.4°F).

  • Average low temperature in December: 33.3°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28°F).

Average pressure in December
Golconda, IL

Average pressure in December - Golconda, IL
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Golconda, IL

Average wind speed in December - Golconda, IL
  • Average wind speed in December: 8.3mph

The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity in December
Golconda, IL

Average humidity in December - Golconda, IL
  • Average humidity in December: 78%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Golconda, IL

Average rainfall in December - Golconda, IL
  • Average rainfall in December: 3.03"

The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in December
Golconda, IL

Average rainfall days in December - Golconda, IL
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is October (10.2 days).

Average snowfall in December
Golconda, IL

Average snowfall in December - Golconda, IL
  • Average snowfall in December: 0.47"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Golconda, IL

Average snowfall days in December - Golconda, IL
  • Average snowfall days in December: 2 days

The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Golconda, IL

Average daylight in December / Average sunshine in December - Golconda, IL
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 4h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in December
Golconda, IL

Average sunshine days in December - Golconda, IL
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (11 days).

Average UV index in December
Golconda, IL

Average UV index in December - Golconda, IL
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Golconda, IL

Average cloud cover in December - Golconda, IL
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 26).

Average visibility in December
Golconda, IL

Average visibility in December - Golconda, IL
  • 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).

Golconda, Illinois, USA

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