December weather forecastTaylorville, IL
December
Weather in December
December, the first month of the winter in Taylorville, is also a wintry month, with temperature in the range of an average high of 39.4°F (4.1°C) and an average low of 28.2°F (-2.1°C).Temperature
Taylorville's December weather features a mild decline in high-temperatures, reducing from a cool 50.4°F (10.2°C) in November to a wintry 39.4°F (4.1°C). December nights cool down to an average low-temperature of 28.2°F (-2.1°C).Humidity
The average relative humidity in December is 78%.Rainfall
February and December are months with the least rain when the rain falls for 8 days and typically aggregates up to 1.65" (42mm) of rain.Snowfall
January through April, November and December are months with snowfall in Taylorville. In Taylorville, in December, snow falls for 5.5 days, with typically accumulated 1.61" (41mm) of snow. Throughout the year, there are 26.3 snowfall days, and 8.94" (227mm) of snow is accumulated.Daylight
December has the shortest days of the year in Taylorville, Illinois, with an average of 9h and 24min of daylight.On the first day of December in Taylorville, sunrise is at 6:59 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:43 pm CST.
Sunshine
In Taylorville, the average sunshine in December is 4.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Taylorville, IL
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Taylorville, IL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Taylorville, IL
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Taylorville, IL
- Average humidity in December: 78%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Taylorville, IL
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is April (3.58").
The driest months (with the least rainfall) are February and December (1.65").
Average rainfall days in December
Taylorville, IL
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in December
Taylorville, IL
- Average snowfall in December: 1.61"
The month with the highest snowfall is January (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Taylorville, 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
Taylorville, IL
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Taylorville, IL
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (11 days).
Average UV index in December
Taylorville, 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
Taylorville, IL
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June, August and September (Cloud cover 30).
Average visibility in December
Taylorville, 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).





