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 involves a decrease in temperature, down from a frosty 47.3°F (8.5°C) in November to a cold 36°F (2.2°C). During December, Dwight records a consistent average nighttime temperature of 25.9°F (-3.4°C).Humidity
The average relative humidity in December in Dwight is 81%.Rainfall
In Dwight, Illinois, in December, it is raining for 6 days, with typically 0.71" (18mm) of accumulated precipitation. In Dwight, Illinois, during the entire year, the rain falls for 117.5 days and collects up to 13.74" (349mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Dwight, in December, during 6.1 snowfall days, 0.71" (18mm) of snow is typically accumulated. In Dwight, Illinois, during the entire year, snow falls for 31.9 days and aggregates up to 5.2" (132mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:25 pm. On the last day of December, in Dwight, Illinois, sunrise is at 7:18 am and sunset at 4:35 pm CST.
Sunshine
In Dwight, Illinois, the average sunshine in December is 4.2h.UV index
The months with the lowest UV index in Dwight, Illinois, are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 1 during December morphs into the following directions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Dwight in December?
What is the average humidity in December in Dwight?
How much does it rain in Dwight in December?
How much does it snow in Dwight in December?
What is the month with the shortest days in Dwight?
How many hours of daylight does Dwight have in December?
What time are sunrise and sunset in December in Dwight?
How long on average sun shines in December in Dwight?
What is the month with the lowest UV index in Dwight?
How high is the UV index in December in Dwight?
Average temperature in December
Dwight, IL
- Average high temperature in December: 36°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in December: 25.9°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 (18.3°F).
Average pressure in December
Dwight, IL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Dwight, IL
- Average wind speed in December: 9.8mph
The windiest months (with the highest average wind speed) are January and April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Dwight, IL
- Average humidity in December: 81%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Dwight, IL
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is May (2.09").
The driest months (with the least rainfall) are February and November (0.63").
Average rainfall days in December
Dwight, IL
- Average rainfall days in December: 6 days
The months with the highest number of rainy days are May and July (14.8 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in December
Dwight, IL
- Average snowfall in December: 0.71"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Dwight, IL
- Average snowfall days in December: 6.1 days
The month with the highest number of snowfall days is January (9.9 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
Dwight, IL
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
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 August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Dwight, IL
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in December
Dwight, 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
Dwight, IL
- Average cloud cover in December: 57
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 34).
Average visibility in December
Dwight, 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).
Dwight, Illinois, USA
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