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
December shows a mild decline in the average high-temperature, falling from November's chilly 47.3°F (8.5°C) to an icy 35.6°F (2°C). The low-temperature average for Clarke City during December stands at a subzero cold 25.7°F (-3.5°C).Humidity
In December, the average relative humidity in Clarke City is 81%.Rainfall
In December, the rain falls for 7.2 days. Throughout December, 1.06" (27mm) of precipitation is accumulated. Throughout the year, there are 140.4 rainfall days, and 21.5" (546mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Clarke City, during December, snow falls for 8.5 days and regularly aggregates up to 1.42" (36mm) of snow. Throughout the year, there are 38.1 snowfall days, and 9.13" (232mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:59 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:34 pm CST.
Sunshine
In December, the average sunshine is 4.3h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Clarke City. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 1 suggests these recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
How cold is December in Clarke City?
What is the average humidity in December in Clarke City?
How much does it rain in Clarke City in December?
How many days does it snow in December in Clarke City?
What is the month with the shortest days in Clarke City?
What is the average length of the day in December in Clarke City?
What time are sunrise and sunset in December in Clarke City?
How long on average sun shines in December in Clarke City?
What is the month with the lowest UV index in Clarke City?
How high is the UV index in December in Clarke City?
Average temperature in December
Clarke City, IL
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Clarke City, IL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Clarke City, IL
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are January and April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Clarke City, IL
- Average humidity in December: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Clarke City, IL
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in December
Clarke City, IL
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in December
Clarke City, IL
- Average snowfall in December: 1.42"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Clarke City, IL
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is January (11.5 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
Clarke City, IL
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Clarke City, IL
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in December
Clarke City, IL
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Clarke City, IL
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in December
Clarke City, 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).
Clarke City, Illinois, USA
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