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 arrival of December corresponds with a reduction in the average high-temperature, down from November's chilly 48.7°F (9.3°C) to an icy 37.6°F (3.1°C). Thomasboro experiences an average low-temperature reading of 27.5°F (-2.5°C) throughout December.Humidity
In Thomasboro, the average relative humidity in December is 80%.Rainfall
In December, the rain falls for 6.9 days. Throughout December, 0.71" (18mm) of precipitation is accumulated. Throughout the year, in Thomasboro, there are 121.5 rainfall days, and 13.46" (342mm) of precipitation is accumulated.Snowfall
Months with snowfall in Thomasboro are January through April, November and December. In Thomasboro, Illinois, during December, snow falls for 6.1 days and regularly aggregates up to 0.83" (21mm) of snow. Throughout the year, there are 26.9 snowfall days, and 3.78" (96mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Thomasboro.On the first day of the month, sunrise is at 6:56 am and sunset at 4:27 pm. On the last day of December, sunrise is at 7:15 am and sunset at 4:36 pm CST.
Sunshine
In December, the average sunshine is 4.5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Thomasboro during December?
What is the average humidity in December in Thomasboro?
How much does it rain in Thomasboro in December?
How many days does it snow in December in Thomasboro?
What is the month with the shortest days in Thomasboro?
What is the average length of the day in December in Thomasboro?
When are sunrise and sunset in December in Thomasboro?
How many hours of sunshine does Thomasboro have in December?
What are the months with the lowest UV index in Thomasboro?
What is the UV index intensity in December in Thomasboro?
Average temperature in December
Thomasboro, IL
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Thomasboro, IL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Thomasboro, IL
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Thomasboro, IL
- Average humidity in December: 80%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Thomasboro, IL
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in December
Thomasboro, IL
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in December
Thomasboro, IL
- Average snowfall in December: 0.83"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Thomasboro, IL
- Average snowfall days in December: 6.1 days
The month with the highest number of snowfall days is January (7.9 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
Thomasboro, 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Thomasboro, IL
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Thomasboro, 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
Thomasboro, IL
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Thomasboro, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Thomasboro, Illinois, USA
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