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 signals a shift in temperature, down from a chilly 47.8°F (8.8°C) in November to an icy 36.5°F (2.5°C). Anchor observes an average low-temperature of 27°F (-2.8°C) during December.Humidity
The average relative humidity in December is 80%.Rainfall
The months with the least rainfall in Anchor are February and December Rain falls for 6.1 days and accumulates 0.75" (19mm) of rain.Snowfall
January through April, October through December are months with snowfall in Anchor. In Anchor, during December, snow falls for 6.5 days and regularly aggregates up to 0.83" (21mm) of snow. Throughout the year, in Anchor, there are 29.4 snowfall days, and 4.69" (119mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 6:59 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:37 pm CST.
Sunshine
In Anchor, the average sunshine in December is 4.2h.UV index
December is the month with the lowest UV index in Anchor, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, the UV index of 1 transforms into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
How cold is December in Anchor?
What is the average humidity in December in Anchor?
What is the driest month in Anchor?
How many days does it rain in December in Anchor?
How much does it snow in Anchor in December?
What is the month with the shortest days in Anchor?
What is the average length of the day in December in Anchor?
When are sunrise and sunset in December in Anchor?
How many hours of sunshine does Anchor have in December?
What is the month with the lowest UV index in Anchor?
How high is the UV index in December in Anchor?
Average temperature in December
Anchor, IL
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Anchor, IL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Anchor, IL
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Anchor, IL
- Average humidity in December: 80%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Anchor, IL
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is May (1.93").
The driest months (with the least rainfall) are February and December (0.75").
Average rainfall days in December
Anchor, IL
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Anchor, IL
- Average snowfall in December: 0.83"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Anchor, IL
- Average snowfall days in December: 6.5 days
The month with the highest number of snowfall days is January (9.3 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
Anchor, IL
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Anchor, IL
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in December
Anchor, IL
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Anchor, IL
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in December
Anchor, 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).
Anchor, Illinois, USA
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