Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The lowest temperatures are recorded in January, with averages reaching a high of 42.3°F (5.7°C) and a low of 27.3°F (-2.6°C).Humidity
The average relative humidity in January is 72%.Rainfall
In January, the rain falls for 6.8 days. Throughout January, 1.57" (40mm) of precipitation is accumulated. In Carterville, during the entire year, the rain falls for 143.4 days and collects up to 32.01" (813mm) of precipitation.Snowfall
Months with snowfall are January through March, May, November and December. In Carterville, in January, snow falls for 3.5 days, with typically accumulated 1.5" (38mm) of snow. In Carterville, during the entire year, snow falls for 11.8 days and aggregates up to 5.63" (143mm) of snow.Daylight
In January, the average length of the day is 9h and 57min.On the first day of January, sunrise is at 7:31 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:40 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 5.4h of sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold does it get in January?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January in Carterville?
What is the month with the least sunshine?
How many hours of sunshine does Carterville have in January?
When is the lowest UV index?
What is the UV index intensity in January in Carterville?
Average temperature in January
Carterville, MO
- Average high temperature in January: 42.3°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 January: 27.3°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 January
Carterville, MO
- Average pressure in January: 30.17"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 January
Carterville, MO
- Average wind speed in January: 10.2mph
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 January
Carterville, MO
- Average humidity in January: 72%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Carterville, MO
- Average rainfall in January: 1.57"
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 January
Carterville, MO
- Average rainfall days in January: 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 January
Carterville, MO
- Average snowfall in January: 1.5"
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 January
Carterville, MO
- Average snowfall days in January: 3.5 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 January /
Average sunshine in January
Carterville, MO
- Average daylight in January: 10h and 0min
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 January: 5h and 2min
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 January
Carterville, MO
- Average sunshine days in January: 20.5 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 January
Carterville, MO
- Average UV index in January: 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 January
Carterville, MO
- Average cloud cover in January: 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 January
Carterville, MO
- Average visibility in January: 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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