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's onset brings a reduction in the average high-temperature, from a chilly 45.5°F (7.5°C) in November to a wintry 34.2°F (1.2°C). December nights experience a consistent temperature drop to a subzero cold 23.5°F (-4.7°C).Humidity
The average relative humidity in December in Wayne, Illinois, is 82%.Rainfall
The months with the least rainfall are November and December Rain falls for 5 days and accumulates 0.39" (10mm) of rain.Snowfall
January through April, October through December are months with snowfall in Wayne, Illinois. In Wayne, in December, during 5.6 snowfall days, 0.35" (9mm) of snow is typically accumulated. Throughout the year, in Wayne, there are 28.3 snowfall days, and 3.74" (95mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:22 pm. On the last day of December, in Wayne, sunrise is at 7:20 am and sunset at 4:31 pm CST.
Sunshine
The average sunshine in December is 4.1h.UV index
The months with the lowest UV index in Wayne are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: In December, a regular UV index of 1 translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
How cold is it in Wayne in December?
What is the average humidity in December in Wayne?
What is the driest month in Wayne?
How many days does it rain in December in Wayne?
How many days does it snow in December in Wayne?
What is the month with the shortest days in Wayne?
What is the average length of the day in December in Wayne?
When are sunrise and sunset in December in Wayne?
How long on average sun shines in December in Wayne?
What is the month with the lowest UV index in Wayne?
How high is the UV index in December in Wayne?
Average temperature in December
Wayne, IL
- Average high temperature in December: 34.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in December: 23.5°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Wayne, IL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Wayne, IL
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Wayne, IL
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Wayne, IL
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is May (1.26").
The driest months (with the least rainfall) are November and December (0.39").
Average rainfall days in December
Wayne, IL
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is May (12.4 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in December
Wayne, IL
- Average snowfall in December: 0.35"
The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Wayne, IL
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Wayne, IL
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Wayne, IL
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in December
Wayne, IL
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Wayne, IL
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in December
Wayne, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Wayne, Illinois, USA
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