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
Stepping into December, Jonesboro observes a temperature decline, with the average high falling from November's fresh 54.5°F (12.5°C) to a frosty 44.8°F (7.1°C). Jonesboro in December anticipates an average nighttime temperature of 32.2°F (0.1°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In Jonesboro, in December, it is raining for 9.2 days, with typically 1.81" (46mm) of accumulated precipitation. In Jonesboro, during the entire year, the rain falls for 143 days and collects up to 27.44" (697mm) of precipitation.Snowfall
Months with snowfall in Jonesboro, Illinois, are January through April, October through December. In Jonesboro, Illinois, in December, during 2.6 snowfall days, 1.1" (28mm) of snow is typically accumulated. Throughout the year, in Jonesboro, there are 14.9 snowfall days, and 6.06" (154mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Jonesboro.On the first day of December, sunrise is at 6:53 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:49 pm CST.
Sunshine
In December, the average sunshine is 4.8h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What are the temperatures in Jonesboro in December?
What is the average humidity in December in Jonesboro?
How much does it rain in Jonesboro in December?
How many days does it snow in December in Jonesboro?
What is the month with the shortest days in Jonesboro?
How many hours of daylight does Jonesboro have in December?
When are sunrise and sunset in December in Jonesboro?
How long on average sun shines in December in Jonesboro?
What is the month with the lowest UV index in Jonesboro?
What is the UV index intensity in December in Jonesboro?
Average temperature in December
Jonesboro, IL
- Average high temperature in December: 44.8°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in December: 32.2°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in December
Jonesboro, 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 (29.94"Hg).
Average wind speed in December
Jonesboro, IL
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Jonesboro, IL
- Average humidity in December: 78%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Jonesboro, IL
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in December
Jonesboro, IL
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Jonesboro, IL
- Average snowfall in December: 1.1"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Jonesboro, IL
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is January (4.6 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
Jonesboro, IL
- Average daylight in December: 9h and 4min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in December
Jonesboro, IL
- Average sunshine days in December: 19.6 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in December
Jonesboro, 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
Jonesboro, IL
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in December
Jonesboro, 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).
Jonesboro, Illinois, USA
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