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 implies a gentle temperature shift, with average high-temperatures reducing from November's fresh 52.2°F (11.2°C) to a cold 41.7°F (5.4°C). In December, Birds reports a consistent average low-temperature of 30.9°F (-0.6°C) during the nights.Humidity
In December, the average relative humidity is 79%.Rainfall
In Birds, during December, the rain falls for 10.6 days and regularly aggregates up to 2.95" (75mm) of precipitation. In Birds, during the entire year, the rain falls for 161.1 days and collects up to 35.83" (910mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Birds, in December, snow falls for 4.5 days, with typically accumulated 1.5" (38mm) of snow. In Birds, Illinois, during the entire year, snow falls for 20.8 days and aggregates up to 6.3" (160mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 6:50 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:08 am and sunset at 4:39 pm CST.
Sunshine
The average sunshine in December is 4.5h.UV index
The months with the lowest UV index in Birds are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Birds?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Birds, IL
- Average high temperature in December: 41.7°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in December: 30.9°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Birds, IL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Birds, IL
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Birds, IL
- Average humidity in December: 79%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Birds, IL
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is April (4.92").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Birds, IL
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in December
Birds, IL
- Average snowfall in December: 1.5"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Birds, IL
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (6.3 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
Birds, IL
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 4h and 3min
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 18min).
Average sunshine days in December
Birds, IL
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is May (9.5 days).
Average UV index in December
Birds, 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, November and December (UV index 2).
Average cloud cover in December
Birds, IL
- Average cloud cover in December: 51
The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Birds, 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).
Birds, Illinois, USA
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