December weather forecast
White Hall, IL

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Weather in December

December, the first month of the winter in White Hall, is also a wintry month, with an average temperature fluctuating between 28.4°F (-2°C) and 40.1°F (4.5°C).

Temperature

The beginning of December involves a decrease in the average high-temperature, transitioning from a fresh 51.6°F (10.9°C) in November to a cold 40.1°F (4.5°C). Throughout December, White Hall encounters an average temperature drop to a subzero cold 28.4°F (-2°C).

Humidity

In White Hall, the average relative humidity in December is 77%.

Rainfall

In White Hall, during December, the rain falls for 6.7 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 127.3 rainfall days, and 17.24" (438mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in White Hall, Illinois. In December, it is snowing for 4.2 days. Throughout December, 0.91" (23mm) of snow is accumulated. In White Hall, during the entire year, snow falls for 22.5 days and aggregates up to 5.08" (129mm) of snow.

Daylight

December has the shortest days of the year in White Hall, Illinois, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:38 pm. On the last day of December, in White Hall, sunrise is at 7:21 am and sunset at 4:48 pm CST.

Sunshine

The average sunshine in December in White Hall is 4.8h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: In December, a regular UV index of 2 translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

How cold is it in White Hall in December?

The average high-temperature, in December, in White Hall, is 40.1°F (4.5°C), while the average low-temperature is 28.4°F (-2°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is appraised at 91.4°F (33°C).

What is the average humidity in December in White Hall?

In December, the average relative humidity in White Hall, Illinois, is 77%.

How much does it rain in White Hall in December?

In White Hall, during December, the rain falls for 6.7 days and regularly aggregates up to 0.91" (23mm) of precipitation.

How many days does it snow in December in White Hall?

In White Hall, during December, snow falls for 4.2 days and regularly aggregates up to 0.91" (23mm) of snow.

What is the month with the shortest days in White Hall?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

What is the average length of the day in December in White Hall?

The average day length in December in White Hall is 9h and 26min.

When is the sunrise / sunset in December in White Hall?

On the first day of December in White Hall, Illinois, sunrise is at 7:03 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:48 pm CST.

How many hours of sunshine does White Hall have in December?

The average sunshine duration in December is 4.8h.

When is the lowest UV index in White Hall?

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

How high is the UV index in December in White Hall?

In White Hall, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's 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
White Hall, IL

Average temperature in December - White Hall, IL
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in December: 28.4°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

Average pressure in December
White Hall, IL

Average pressure in December - White Hall, IL
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
White Hall, IL

Average wind speed in December - White Hall, IL
  • Average wind speed in December: 9.3mph

The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

Average humidity in December
White Hall, IL

Average humidity in December - White Hall, IL
  • Average humidity in December: 77%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
White Hall, IL

Average rainfall in December - White Hall, IL
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is June (2.44").
The driest months (with the least rainfall) are January and November (0.83").

Average rainfall days in December
White Hall, IL

Average rainfall days in December - White Hall, IL
  • Average rainfall days in December: 6.7 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.5 days).

Average snowfall in December
White Hall, IL

Average snowfall in December - White Hall, IL
  • Average snowfall in December: 0.91"

The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
White Hall, IL

Average snowfall days in December - White Hall, IL
  • Average snowfall days in December: 4.2 days

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
White Hall, IL

Average daylight in December / Average sunshine in December - White Hall, IL
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in December
White Hall, IL

Average sunshine days in December - White Hall, IL
  • Average sunshine days in December: 20.6 days

The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is July (12.3 days).

Average UV index in December
White Hall, IL

Average UV index in December - White Hall, IL
  • Average UV index in December: 2

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

Average cloud cover in December
White Hall, IL

Average cloud cover in December - White Hall, IL
  • Average cloud cover in December: 49

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in December
White Hall, IL

Average visibility in December - White Hall, 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).

White Hall, Illinois, USA

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