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 brings a minor decrease, with the average high-temperature reducing from a refreshing 56.1°F (13.4°C) in November to a chilly 45.9°F (7.7°C). Throughout December, Carterville encounters an average temperature drop to a freezing cold 31.3°F (-0.4°C).Humidity
The average relative humidity in December in Carterville is 73%.Rainfall
In Carterville, Missouri, in December, it is raining for 6.8 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 143.4 rainfall days, and 32.01" (813mm) of precipitation is accumulated.Snowfall
Months with snowfall in Carterville are January through March, May, November and December. In Carterville, in December, during 2.1 snowfall days, 0.67" (17mm) of snow is typically accumulated. Throughout the year, in Carterville, there are 11.8 snowfall days, and 5.63" (143mm) of snow is accumulated.Daylight
The month with the shortest days in Carterville is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 5:00 pm. On the last day of December, in Carterville, Missouri, sunrise is at 7:31 am and sunset at 5:10 pm CST.
Sunshine
In Carterville, Missouri, the average sunshine in December is 5.6h.UV index
The months with the lowest UV index in Carterville, Missouri, 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 unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests these recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What is the usual temperature for Carterville in December?
What is the average humidity in December in Carterville?
How much does it rain in Carterville in December?
How much does it snow in Carterville in December?
What is the month with the shortest days in Carterville?
What is the average length of the day in December in Carterville?
When are sunrise and sunset in December in Carterville?
How many hours of sunshine does Carterville have in December?
What are the months with the lowest UV index in Carterville?
What is the UV index intensity in December in Carterville?
Average temperature in December
Carterville, MO
- Average high temperature in December: 45.9°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in December: 31.3°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in December
Carterville, MO
- 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 (29.92"Hg).
Average wind speed in December
Carterville, MO
- Average wind speed in December: 9.7mph
The windiest months (with the highest average wind speed) are March and April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Carterville, MO
- Average humidity in December: 73%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Carterville, MO
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is May (5.04").
The driest month (with the least rainfall) is February (1.54").
Average rainfall days in December
Carterville, MO
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (16.8 days).
The months with the least rainy days are January and December (6.8 days).
Average snowfall in December
Carterville, MO
- Average snowfall in December: 0.67"
The month with the highest snowfall is February (2.44").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in December
Carterville, MO
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Carterville, MO
- 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 42min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in December
Carterville, MO
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is December (21.1 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in December
Carterville, MO
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Carterville, MO
- Average cloud cover in December: 40
The months with the most cloud cover are February and March (Cloud cover 45).
The months with the least cloud cover are June, July and August (Cloud cover 25).
Average visibility in December
Carterville, MO
- 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).
Carterville, Missouri, USA
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