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 onset of December coincides with a reduction in the average high-temperature, falling from a cool 53.8°F (12.1°C) in November to a chilly 43.7°F (6.5°C). During December in Steeleville, the average low-temperature is recorded at a freezing cold 31.1°F (-0.5°C).Humidity
The average relative humidity in December is 77%.Rainfall
In Steeleville, in December, during 8.9 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Steeleville, during the entire year, the rain falls for 159.4 days and collects up to 37.2" (945mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 3.8 days. Throughout December, 1.26" (32mm) of snow is accumulated. Throughout the year, there are 20.9 snowfall days, and 8.11" (206mm) of snow is accumulated.Daylight
December has the shortest days of the year in Steeleville, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:56 am and sunset at 4:39 pm. On the last day of December, in Steeleville, sunrise is at 7:14 am and sunset at 4:49 pm CST.
Sunshine
The average sunshine in December in Steeleville is 4.9h.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 estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 in December translates into these instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
Is December cold in Steeleville?
What is the average humidity in December in Steeleville?
How much does it rain in Steeleville in December?
How much does it snow in Steeleville in December?
What is the month with the shortest days in Steeleville?
How many hours of daylight does Steeleville have in December?
When are sunrise and sunset in December in Steeleville?
How many hours of sunshine does Steeleville have in December?
What is the month with the lowest UV index in Steeleville?
What is the UV index reading in December in Steeleville?
Average temperature in December
Steeleville, IL
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in December
Steeleville, 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 (29.93"Hg).
Average wind speed in December
Steeleville, IL
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Steeleville, IL
- Average humidity in December: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Steeleville, IL
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is May (4.49").
The driest months (with the least rainfall) are February and September (2.13").
Average rainfall days in December
Steeleville, IL
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Steeleville, IL
- Average snowfall in December: 1.26"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Steeleville, IL
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is January (7.1 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
Steeleville, IL
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
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 June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Steeleville, IL
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in December
Steeleville, IL
- Average UV index in December: 2
The months with the highest UV index are 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
Steeleville, IL
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Steeleville, 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).
Steeleville, Illinois, USA
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