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 corresponds with a temperature reduction, down from November's fresh 51.3°F (10.7°C) to a wintry 41°F (5°C). Robinson throughout December, records an average low-temperature of 29.7°F (-1.3°C).Humidity
The average relative humidity in December in Robinson is 79%.Rainfall
In Robinson, in December, during 9.8 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Robinson, during the entire year, the rain falls for 147.2 days and collects up to 27.87" (708mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Robinson, Illinois, during December, snow falls for 5 days and regularly aggregates up to 1.3" (33mm) of snow. Throughout the year, there are 21.1 snowfall days, and 5.16" (131mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:51 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:09 am and sunset at 4:38 pm CST.
Sunshine
In Robinson, the average sunshine in December is 4.4h.UV index
The months with the lowest UV index in Robinson 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 hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. When the Sun is at its strongest around midday, find shade and limit exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Robinson?
What is the average humidity in December in Robinson?
How much does it rain in Robinson in December?
How many days does it snow in December in Robinson?
What is the month with the shortest days in Robinson?
What is the average length of the day in December in Robinson?
When is the sunrise / sunset in December in Robinson?
How long on average sun shines in December in Robinson?
What are the months with the lowest UV index in Robinson?
How high is the UV index in December in Robinson?
Average temperature in December
Robinson, IL
- Average high temperature in December: 41°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°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Robinson, IL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Robinson, IL
- Average wind speed in December: 9.2mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in December
Robinson, IL
- Average humidity in December: 79%
The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Robinson, IL
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is April (4.13").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in December
Robinson, IL
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Robinson, IL
- Average snowfall in December: 1.3"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Robinson, IL
- Average snowfall days in December: 5 days
The month with the highest number of snowfall days is January (6 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
Robinson, IL
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Robinson, IL
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Robinson, IL
- Average UV index in December: 2
The months with the highest UV index are May, 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
Robinson, IL
- Average cloud cover in December: 53
The months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Robinson, 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).
Robinson, Illinois, USA
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