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
The start of December involves a temperature drop, moving from a cool 50.2°F (10.1°C) in November to a cold 38.5°F (3.6°C). During December, Columbus experiences an average low-temperature of 26.8°F (-2.9°C) at night.Humidity
In Columbus, the average relative humidity in December is 78%.Rainfall
January and December are months with the least rain when the rain falls for 5.8 days and typically aggregates up to 1.02" (26mm) of rain.Snowfall
January through April, October through December are months with snowfall. In December, in Columbus, it is snowing for 5.5 days. Throughout December, 1.46" (37mm) of snow is accumulated. Throughout the year, there are 27.6 snowfall days, and 7.95" (202mm) of snow is accumulated.Daylight
The month with the shortest days in Columbus is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:07 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:49 pm CST.
Sunshine
In December, the average sunshine is 4.7h.UV index
The months with the lowest UV index in Columbus are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To cut down UV radiation exposure by about half, sport a wide-brim hat. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
How cold does it get in Columbus in December?
What is the average humidity in December in Columbus?
What is the driest month in Columbus?
How much does it rain in Columbus in December?
How many days does it snow in December in Columbus?
What is the month with the shortest days in Columbus?
What is the average length of the day in December in Columbus?
What time are sunrise and sunset in December in Columbus?
How many hours of sunshine does Columbus have in December?
When is the lowest UV index in Columbus?
What is the UV index intensity in December in Columbus?
Average temperature in December
Columbus, IL
- Average high temperature in December: 38.5°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Columbus, IL
- Average pressure in December: 30.12"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
Columbus, IL
- Average wind speed in December: 9.8mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in December
Columbus, IL
- Average humidity in December: 78%
The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Columbus, IL
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (3.35").
The driest months (with the least rainfall) are January and December (1.02").
Average rainfall days in December
Columbus, IL
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (5 days).
Average snowfall in December
Columbus, IL
- Average snowfall in December: 1.46"
The month with the highest snowfall is January (2.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Columbus, IL
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (8.8 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
Columbus, IL
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Columbus, IL
- Average sunshine days in December: 19.6 days
The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in December
Columbus, 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
Columbus, 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 July (Cloud cover 28).
Average visibility in December
Columbus, 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).
Columbus, Illinois, USA
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