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's onset brings a reduction in the average high-temperature, from a fresh 54.9°F (12.7°C) in November to a chilly 45.5°F (7.5°C). December's average low-temperature reading in Lewis Corner, Illinois, settles at a cold 33.3°F (0.7°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In Lewis Corner, in December, it is raining for 11.5 days, with typically 3.03" (77mm) of accumulated precipitation. Throughout the year, there are 160.7 rainfall days, and 36.73" (933mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Lewis Corner, in December, snow falls for 2 days, with typically accumulated 0.47" (12mm) of snow. Throughout the year, in Lewis Corner, there are 12.9 snowfall days, and 4.33" (110mm) of snow is accumulated.Daylight
December has the shortest days of the year in Lewis Corner, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:50 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:08 am and sunset at 4:47 pm CST.
Sunshine
In December, the average sunshine in Lewis Corner, Illinois, 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 low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 during December translates into the following directions:
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. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What is the temperature in December in Lewis Corner?
What is the average humidity in December in Lewis Corner?
How much does it rain in Lewis Corner in December?
How many days does it snow in December in Lewis Corner?
What is the month with the shortest days in Lewis Corner?
How many hours of daylight does Lewis Corner have in December?
What time are sunrise and sunset in December in Lewis Corner?
How long on average sun shines in December in Lewis Corner?
What are the months with the lowest UV index in Lewis Corner?
What is the UV index reading in December in Lewis Corner?
Average temperature in December
Lewis Corner, IL
- Average high temperature in December: 45.5°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 (41.4°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in December
Lewis Corner, IL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Lewis Corner, IL
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in December
Lewis Corner, IL
- Average humidity in December: 78%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Lewis Corner, IL
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Lewis Corner, IL
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is October (10.2 days).
Average snowfall in December
Lewis Corner, IL
- Average snowfall in December: 0.47"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Lewis Corner, IL
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Lewis Corner, 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 months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Lewis Corner, IL
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (11 days).
Average UV index in December
Lewis Corner, 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
Lewis Corner, 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 September (Cloud cover 26).
Average visibility in December
Lewis Corner, 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).
Lewis Corner, Illinois, USA
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