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
With the onset of December, Gibson City experiences a modest temperature adjustment, with the average high-temperature receding from a chilly 47.8°F (8.8°C) in November to an icy 36.5°F (2.5°C). Gibson City, in the month of December, anticipates a consistent average low-temperature of 27°F (-2.8°C).Humidity
In December, the average relative humidity is 80%.Rainfall
February and December are months with the least rain when the rain falls for 6.1 days and typically aggregates up to 0.75" (19mm) of rain.Snowfall
Months with snowfall are January through April, October through December. In Gibson City, during December, snow falls for 6.5 days and regularly aggregates up to 0.83" (21mm) of snow. Throughout the year, 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 the month, sunrise is at 6:58 am and sunset at 4:27 pm. On the last day of December, sunrise is at 7:16 am and sunset at 4:37 pm CST.
Sunshine
In Gibson City, the average sunshine in December is 4.2h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 1 in December suggests the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
What is the driest month?
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?
What time are sunrise and sunset in December?
How many hours of sunshine does Gibson City have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Gibson City, 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
Gibson City, 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
Gibson City, 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
Gibson City, 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
Gibson City, 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
Gibson City, 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
Gibson City, 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
Gibson City, 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
Gibson City, 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
Gibson City, 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
Gibson City, 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
Gibson City, 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
Gibson City, 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).
Gibson City, Illinois, USA
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