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 beginning of December involves a decrease in the average high-temperature, transitioning from a chilly 44.6°F (7°C) in November to an icy 32.4°F (0.2°C). Adeline's average low-temperature is measured at a freezing cold 22.3°F (-5.4°C) during December.Humidity
In Adeline, Illinois, the average relative humidity in December is 83%.Rainfall
The months with the least rainfall in Adeline, Illinois, are February and December Rain falls for 7.5 days and accumulates 1.06" (27mm) of rain.Snowfall
Months with snowfall in Adeline are January through April, October through December. In Adeline, in December, snow falls for 9.9 days, with typically accumulated 2.09" (53mm) of snow. In Adeline, during the entire year, snow falls for 45.5 days and aggregates up to 13.15" (334mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December in Adeline, sunrise is at 7:07 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:36 pm CST.
Sunshine
In December, the average sunshine is 4h.UV index
The months with the lowest UV index in Adeline are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 1 during December translates into the following directions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
How cold is December in Adeline?
What is the average humidity in December in Adeline?
What is the driest month in Adeline?
How many days does it rain in December in Adeline?
How much does it snow in Adeline in December?
What is the month with the shortest days in Adeline?
What is the average length of the day in December in Adeline?
What time are sunrise and sunset in December in Adeline?
How long on average sun shines in December in Adeline?
When is the lowest UV index in Adeline?
How high is the UV index in December in Adeline?
Average temperature in December
Adeline, IL
- Average high temperature in December: 32.4°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in December: 22.3°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in December
Adeline, IL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Adeline, IL
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Adeline, IL
- Average humidity in December: 83%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in December
Adeline, IL
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is June (3.39").
The driest months (with the least rainfall) are February and December (1.06").
Average rainfall days in December
Adeline, IL
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5 days).
Average snowfall in December
Adeline, IL
- Average snowfall in December: 2.09"
The month with the highest snowfall is January (3.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Adeline, IL
- Average snowfall days in December: 9.9 days
The month with the highest number of snowfall days is January (12.4 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
Adeline, IL
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Adeline, IL
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in December
Adeline, IL
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Adeline, IL
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in December
Adeline, IL
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Adeline, Illinois, USA
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