Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's arrival coincides with a drop in the average high-temperature, decreasing from November's cool 52.2°F (11.2°C) to a cold 41.9°F (5.5°C). In December, the recorded average low-temperature is a subzero cold 30.6°F (-0.8°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In Junction City, Illinois, in December, it is raining for 8.7 days, with typically 1.85" (47mm) of accumulated precipitation. In Junction City, Illinois, 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 Junction City, in December, snow falls for 3.6 days, with typically accumulated 1.06" (27mm) of snow. In Junction City, during the entire year, snow falls for 17.7 days and aggregates up to 5.91" (150mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, 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.
Sunshine
In Junction City, Illinois, the average sunshine in December is 4.8h.UV index
The months with the lowest UV index are January, November 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 the ordinary person.Note: The UV index of 2 during December leads to these advisories:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December in Junction City?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Junction City have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Junction City, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location