December weather forecast
Junction City, IL

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Weather in December

December, the first month of the winter in Junction City, is also a wintry month, with temperature in the range of an average low of 30.6°F (-0.8°C) and an average high of 41.9°F (5.5°C).

Temperature

December implies a gentle temperature shift, with average high-temperatures reducing from November's cool 52.2°F (11.2°C) to a wintry 41.9°F (5.5°C). During December, the average low-temperature is recorded at a freezing cold 30.6°F (-0.8°C).

Humidity

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

Rainfall

In Junction City, Illinois, in December, during 8.7 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Junction City, during the entire year, the rain falls for 145.5 days and collects up to 28.39" (721mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In December, it is snowing for 3.6 days. Throughout December, 1.06" (27mm) of snow is accumulated. In Junction City, during the entire year, snow falls for 17.7 days and aggregates up to 5.91" (150mm) of snow.

Daylight

The month with the shortest days in Junction City, Illinois, is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 6:55 am and sunset at 4:35 pm. On the last day of December, in Junction City, sunrise is at 7:14 am and sunset at 4:45 pm CST.

Sunshine

The average sunshine in December in Junction City is 4.8h.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Junction City, Illinois. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

How cold is it in Junction City in December?

An average high-temperature, in December, in Junction City, is 41.9°F (5.5°C) and the average low-temperature is 30.6°F (-0.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 93.2°F (34°C).

What is the average humidity in December in Junction City?

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

How much does it rain in Junction City in December?

In Junction City, Illinois, during December, the rain falls for 8.7 days and regularly aggregates up to 1.85" (47mm) of precipitation.

How much does it snow in Junction City in December?

In December, in Junction City, Illinois, it is snowing for 3.6 days. Throughout December, 1.06" (27mm) of snow is accumulated.

What is the month with the shortest days in Junction City?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Junction City?

The average day length in December in Junction City is 9h and 32min.

What time are sunrise and sunset in December in Junction City?

On the first day of December in Junction City, Illinois, sunrise is at 6:55 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:45 pm CST.

How many hours of sunshine does Junction City have in December?

In Junction City, the average sunshine duration in December is 4.8h.

When is the lowest UV index in Junction City?

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Junction City.

How high is the UV index in December in Junction City?

The average daily maximum UV index in December in Junction City, Illinois, is 2. A UV Index estimate of 2, and below, represents a low health threat from unsafe 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
Junction City, IL

Average temperature in December - Junction City, IL
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in December
Junction City, IL

Average pressure in December - Junction City, IL
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Junction City, IL

Average wind speed in December - Junction City, IL
  • Average wind speed in December: 9.2mph

The windiest months (with the highest average wind speed) are January and February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

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Average humidity in December
Junction City, IL

Average humidity in December - Junction City, IL
  • Average humidity in December: 78%

The months with the highest relative humidity are May, July and August (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Junction City, IL

Average rainfall in December - Junction City, IL
  • Average rainfall in December: 1.85"

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.46").

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Average rainfall days in December
Junction City, IL

Average rainfall days in December - Junction City, IL
  • Average rainfall days in December: 8.7 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (7.2 days).

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Average snowfall in December
Junction City, IL

Average snowfall in December - Junction City, IL
  • Average snowfall in December: 1.06"

The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Junction City, IL

Average snowfall days in December - Junction City, IL
  • Average snowfall days in December: 3.6 days

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Junction City, IL

Average daylight in December / Average sunshine in December - Junction City, IL
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in December
Junction City, IL

Average sunshine days in December - Junction City, IL
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (11.5 days).

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Average UV index in December
Junction City, IL

Average UV index in December - Junction City, 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, November and December (UV index 2).

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Average cloud cover in December
Junction City, IL

Average cloud cover in December - Junction City, IL
  • Average cloud cover in December: 49

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).

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Average visibility in December
Junction City, IL

Average visibility in December - Junction City, 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).

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Junction City, Illinois, USA

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