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
Perks, Illinois, in December demonstrates a small temperature transition, adjusting from an average high of a fresh 54.5°F (12.5°C) in November to a frosty 44.8°F (7.1°C). Perks's nighttime temperature in December drops to an average of 32.7°F (0.4°C).Humidity
The average relative humidity in December is 78%.Rainfall
In Perks, in December, during 7.3 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In Perks, during the entire year, the rain falls for 118.3 days and collects up to 13.03" (331mm) of precipitation.Snowfall
Months with snowfall in Perks are January through March, November and December. In Perks, Illinois, in December, during 1.9 snowfall days, 0.12" (3mm) of snow is typically accumulated. Throughout the year, in Perks, there are 11 snowfall days, and 1.57" (40mm) of snow is accumulated.Daylight
December has the shortest days of the year in Perks, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 6:52 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 4:49 pm CST.
Sunshine
The average sunshine in December in Perks is 4.8h.UV index
The months with the lowest UV index in Perks are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. To protect against the Sun's most potent rays, avoid direct exposure around midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What are the temperatures in Perks in December?
What is the average humidity in December in Perks?
How many days does it rain in December in Perks?
How much does it snow in Perks in December?
What is the month with the shortest days in Perks?
What is the average length of the day in December in Perks?
What time are sunrise and sunset in December in Perks?
How long on average sun shines in December in Perks?
When is the lowest UV index in Perks?
What is the UV index intensity in December in Perks?
Average temperature in December
Perks, IL
- Average high temperature in December: 44.8°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in December
Perks, IL
- Average pressure in December: 30.14"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
Perks, IL
- Average wind speed in December: 8.5mph
The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Perks, IL
- Average humidity in December: 78%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Perks, IL
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in December
Perks, IL
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).
Average snowfall in December
Perks, IL
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Perks, IL
- Average snowfall days in December: 1.9 days
The month with the highest number of snowfall days is January (3.3 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
Perks, IL
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in December
Perks, IL
- Average sunshine days in December: 21.2 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in December
Perks, 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 and December (UV index 2).
Average cloud cover in December
Perks, IL
- Average cloud cover in December: 49
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in December
Perks, 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).
Perks, Illinois, USA
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