December weather forecastShetlerville, IL
December
Weather in December
December, the first month of the winter in Shetlerville, is still a chilly month, with an average temperature ranging between max 45.5°F (7.5°C) and min 33.4°F (0.8°C).Temperature
The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a fresh 54.5°F (12.5°C) in November to a chilly 45.5°F (7.5°C). In December, the temperature drops to an average of 33.4°F (0.8°C) at night.Humidity
In Shetlerville, the average relative humidity in December is 78%.Rainfall
In Shetlerville, in December, it is raining for 10.8 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, there are 148.8 rainfall days, and 27.05" (687mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In December, it is snowing for 3.2 days. Throughout December, 0.51" (13mm) of snow is accumulated. In Shetlerville, during the entire year, snow falls for 15 days and aggregates up to 4.8" (122mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of December in Shetlerville, sunrise is at 6:49 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:46 pm CST.
Sunshine
The average sunshine in December is 4.8h.UV index
The months with the lowest UV index in Shetlerville 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 exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 2 in December leads to these guidelines:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. It's recommended to limit sun exposure when its radiation is at its peak during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Shetlerville, IL
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in December: 33.4°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in December
Shetlerville, IL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Shetlerville, IL
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Shetlerville, IL
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Shetlerville, IL
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in December
Shetlerville, IL
- Average rainfall days in December: 10.8 days
The months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in December
Shetlerville, IL
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Shetlerville, IL
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (4.5 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
Shetlerville, IL
- Average daylight in December: 9h and 36min
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 36min).
- Average sunshine in December: 4h and 48min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in December
Shetlerville, IL
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in December
Shetlerville, IL
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Shetlerville, IL
- Average cloud cover in December: 49
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 28).
Average visibility in December
Shetlerville, 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).
