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
Pinckneyville's progression into December includes a drop in the average high-temperature, from a fresh 53.6°F (12°C) in November to a chilly 43.5°F (6.4°C). In Pinckneyville, the nighttime temperature averages to a freezing cold 31.1°F (-0.5°C) during December.Humidity
The average relative humidity in December is 77%.Rainfall
In Pinckneyville, during December, the rain falls for 8.2 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Pinckneyville, during the entire year, the rain falls for 147.6 days and collects up to 29.17" (741mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Pinckneyville. In Pinckneyville, in December, during 3.7 snowfall days, 0.87" (22mm) of snow is typically accumulated. In Pinckneyville, Illinois, during the entire year, snow falls for 18 days and aggregates up to 4.53" (115mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:55 am and sunset at 4:38 pm. On the last day of December, sunrise is at 7:13 am and sunset at 4:48 pm CST.
Sunshine
In December, the average sunshine is 4.8h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Pinckneyville. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests this advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is it in Pinckneyville in December?
What is the average humidity in December in Pinckneyville?
How much does it rain in Pinckneyville in December?
How many days does it snow in December in Pinckneyville?
What is the month with the shortest days in Pinckneyville?
How many hours of daylight does Pinckneyville have in December?
When is the sunrise / sunset in December in Pinckneyville?
How long on average sun shines in December in Pinckneyville?
When is the lowest UV index in Pinckneyville?
What is the UV index reading in December in Pinckneyville?
Average temperature in December
Pinckneyville, IL
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in December
Pinckneyville, 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 (29.93"Hg).
Average wind speed in December
Pinckneyville, IL
- Average wind speed in December: 8.9mph
The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Pinckneyville, IL
- Average humidity in December: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Pinckneyville, IL
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in December
Pinckneyville, IL
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is December (8.2 days).
Average snowfall in December
Pinckneyville, IL
- Average snowfall in December: 0.87"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Pinckneyville, IL
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is January (5.4 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
Pinckneyville, IL
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Pinckneyville, IL
- Average sunshine days in December: 19.2 days
The months with the most sunshine days are October and November (19.5 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in December
Pinckneyville, 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
Pinckneyville, IL
- Average cloud cover in December: 49
The months with the most cloud cover are January and February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Pinckneyville, 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).
Pinckneyville, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
