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
A moderate decline in the average high-temperature is seen during December, decreasing from a frosty 44.6°F (7°C) in November to a wintry 32.9°F (0.5°C). In Prairie Grove, the average temperature during the nights of December drops to a subzero cold 22.8°F (-5.1°C).Humidity
In Prairie Grove, the average relative humidity in December is 82%.Rainfall
November and December are months with the least rain when the rain falls for 7.9 days and typically aggregates up to 0.94" (24mm) of rain.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 10.9 days. Throughout December, 1.89" (48mm) of snow is accumulated. Throughout the year, in Prairie Grove, Illinois, there are 48.7 snowfall days, and 11.85" (301mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in Prairie Grove, Illinois.On the first day of December, sunrise is at 7:03 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:30 pm CST.
Sunshine
The average sunshine in December is 3.9h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Prairie Grove. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 1 during December translates into the following guidance:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Always opt for UVA and UVB-resistant sunglasses on radiant days. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
How cold is it in Prairie Grove in December?
What is the average humidity in December in Prairie Grove?
What is the driest month in Prairie Grove?
How much does it rain in Prairie Grove in December?
How much does it snow in Prairie Grove in December?
What is the month with the shortest days in Prairie Grove?
How many hours of daylight does Prairie Grove have in December?
What time are sunrise and sunset in December in Prairie Grove?
How long on average sun shines in December in Prairie Grove?
When is the lowest UV index in Prairie Grove?
How high is the UV index in December in Prairie Grove?
Average temperature in December
Prairie Grove, IL
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in December
Prairie Grove, IL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Prairie Grove, IL
- Average wind speed in December: 9.3mph
The windiest months (with the highest average wind speed) are January and February (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Prairie Grove, IL
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in December
Prairie Grove, IL
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is June (2.8").
The driest months (with the least rainfall) are November and December (0.94").
Average rainfall days in December
Prairie Grove, IL
- Average rainfall days in December: 7.9 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
Prairie Grove, IL
- Average snowfall in December: 1.89"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Prairie Grove, IL
- Average snowfall days in December: 10.9 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Prairie Grove, IL
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Prairie Grove, IL
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is July (10 days).
Average UV index in December
Prairie Grove, IL
- Average UV index in December: 1
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Prairie Grove, IL
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and September (Cloud cover 32).
Average visibility in December
Prairie Grove, IL
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January, February and August (5mi).
Prairie Grove, Illinois, USA
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