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
With the onset of December, Sparland's average high-temperature adjusts, receding from November's frosty 47.3°F (8.5°C) to a cold 35.8°F (2.1°C). An average low-temperature of 25.3°F (-3.7°C) is common during the nights of December.Humidity
In Sparland, the average relative humidity in December is 81%.Rainfall
In Sparland, in December, it is raining for 7.3 days, with typically 1.69" (43mm) of accumulated precipitation. In Sparland, during the entire year, the rain falls for 148.8 days and collects up to 30.94" (786mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Sparland, in December, snow falls for 6.9 days, with typically accumulated 2.13" (54mm) of snow. In Sparland, during the entire year, snow falls for 33.3 days and aggregates up to 14.33" (364mm) of snow.Daylight
December has the shortest days of the year in Sparland, Illinois, with an average of 9h and 18min of daylight.On the first day of December in Sparland, Illinois, sunrise is at 7:03 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:39 pm CST.
Sunshine
The average sunshine in December is 4.2h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is it in Sparland in December?
What is the average humidity in December in Sparland?
How many days does it rain in December in Sparland?
How many days does it snow in December in Sparland?
What is the month with the shortest days in Sparland?
How many hours of daylight does Sparland have in December?
When are sunrise and sunset in December in Sparland?
How many hours of sunshine does Sparland have in December?
What are the months with the lowest UV index in Sparland?
How high is the UV index in December in Sparland?
Average temperature in December
Sparland, IL
- Average high temperature in December: 35.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in December
Sparland, IL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Sparland, IL
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Sparland, IL
- Average humidity in December: 81%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Sparland, IL
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in December
Sparland, IL
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in December
Sparland, IL
- Average snowfall in December: 2.13"
The month with the highest snowfall is February (3.62").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Sparland, IL
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is January (10.4 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
Sparland, 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 1min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Sparland, IL
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in December
Sparland, IL
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Sparland, IL
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in December
Sparland, 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).
Sparland, Illinois, USA
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