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
The arrival of December corresponds with a reduction in the average high-temperature, down from November's cool 54.1°F (12.3°C) to a chilly 44.6°F (7°C). In Sparks Hill, an average nighttime temperature of 32.9°F (0.5°C) is expected during December.Humidity
The average relative humidity in December in Sparks Hill, Illinois, is 78%.Rainfall
In Sparks Hill, during December, the rain falls for 10.4 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, there are 146.3 rainfall days, and 24.96" (634mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Sparks Hill, in December, snow falls for 3.5 days, with typically accumulated 0.63" (16mm) of snow. Throughout the year, there are 15.9 snowfall days, and 3.58" (91mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Sparks Hill, Illinois.On the first day of the month, sunrise is at 6:49 am and sunset at 4:35 pm. On the last day of December, in Sparks Hill, sunrise is at 7:07 am and sunset at 4:45 pm CST.
Sunshine
In December, the average sunshine is 4.7h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Sparks Hill. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
Is December cold in Sparks Hill?
What is the average humidity in December in Sparks Hill?
How many days does it rain in December in Sparks Hill?
How much does it snow in Sparks Hill in December?
What is the month with the shortest days in Sparks Hill?
How many hours of daylight does Sparks Hill have in December?
What time are sunrise and sunset in December in Sparks Hill?
How many hours of sunshine does Sparks Hill have in December?
What is the month with the lowest UV index in Sparks Hill?
What is the UV index reading in December in Sparks Hill?
Average temperature in December
Sparks Hill, IL
- Average high temperature in December: 44.6°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in December
Sparks Hill, 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 (29.95"Hg).
Average wind speed in December
Sparks Hill, IL
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Sparks Hill, IL
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Sparks Hill, IL
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is April (3.27").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in December
Sparks Hill, IL
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (9 days).
Average snowfall in December
Sparks Hill, IL
- Average snowfall in December: 0.63"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Sparks Hill, IL
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (4.8 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
Sparks Hill, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Sparks Hill, IL
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in December
Sparks Hill, 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
Sparks Hill, IL
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Sparks Hill, 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).
Sparks Hill, Illinois, USA
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