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 start of December involves a temperature drop, moving from a chilly 47.3°F (8.5°C) in November to a cold 35.6°F (2°C). The mean low-temperature during December nights is a subzero cold 25.5°F (-3.6°C).Humidity
The average relative humidity in December is 82%.Rainfall
December is the month with the least rainfall in Leonore. Rain falls for 6.9 days and accumulates 1.18" (30mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Leonore, Illinois, in December, snow falls for 7.8 days, with typically accumulated 1.46" (37mm) of snow. Throughout the year, in Leonore, Illinois, there are 37.9 snowfall days, and 12.91" (328mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December in Leonore, Illinois, sunrise is at 7:02 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:37 pm CST.
Sunshine
In December, the average sunshine in Leonore is 4.3h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
How cold is December in Leonore?
What is the average humidity in December in Leonore?
What is the driest month in Leonore?
How much does it rain in Leonore in December?
How much does it snow in Leonore in December?
What is the month with the shortest days in Leonore?
What is the average length of the day in December in Leonore?
When is the sunrise / sunset in December in Leonore?
How long on average sun shines in December in Leonore?
What is the month with the lowest UV index in Leonore?
What is the UV index reading in December in Leonore?
Average temperature in December
Leonore, IL
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in December
Leonore, 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 (29.92"Hg).
Average wind speed in December
Leonore, IL
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Leonore, IL
- Average humidity in December: 82%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Leonore, IL
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days in December
Leonore, IL
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Leonore, IL
- Average snowfall in December: 1.46"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Leonore, IL
- Average snowfall days in December: 7.8 days
The month with the highest number of snowfall days is January (11.8 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
Leonore, 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 2min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Leonore, IL
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in December
Leonore, IL
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Leonore, IL
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in December
Leonore, 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).
Leonore, Illinois, USA
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