December weather forecast
Princeville, IL

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Weather in December

December, the first month of the winter in Princeville, is still a cold month, with temperature in the range of an average low of 25°F (-3.9°C) and an average high of 35.8°F (2.1°C).

Temperature

December's arrival comes with a decrease in the average high-temperature, moving from a chilly 47.5°F (8.6°C) in November to a wintry 35.8°F (2.1°C). Princeville anticipates an average minimum temperature of 25°F (-3.9°C) in the month of December.

Humidity

In Princeville, the average relative humidity in December is 81%.

Rainfall

In December, in Princeville, the rain falls for 5.4 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. Throughout the year, there are 116.8 rainfall days, and 13.98" (355mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Princeville, Illinois, in December, during 5.8 snowfall days, 0.83" (21mm) of snow is typically accumulated. Throughout the year, there are 26.8 snowfall days, and 6.26" (159mm) of snow is accumulated.

Daylight

The month with the shortest days in Princeville is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:04 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:41 pm CST.

Sunshine

The average sunshine in December in Princeville is 4.3h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Princeville. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, a regular UV index of 1 translates into these guidelines:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Princeville in December?

Princeville in December has an average high-temperature of 35.8°F (2.1°C) and an average low-temperature of 25°F (-3.9°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 87.8°F (31°C).

What is the average humidity in December in Princeville?

In Princeville, the average relative humidity in December is 81%.

How much does it rain in Princeville in December?

In Princeville, Illinois, during December, the rain falls for 5.4 days and regularly aggregates up to 0.63" (16mm) of precipitation.

How many days does it snow in December in Princeville?

In December, in Princeville, Illinois, it is snowing for 5.8 days. Throughout December, 0.83" (21mm) of snow is accumulated.

What is the month with the shortest days in Princeville?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

How many hours of daylight does Princeville have in December?

In December, the average day length in Princeville, Illinois, is 9h and 17min.

When is the sunrise / sunset in December in Princeville?

On the first day of December in Princeville, Illinois, sunrise is at 7:04 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:41 pm CST.

How many hours of sunshine does Princeville have in December?

The average sunshine duration in December is 4.3h.

When is the lowest UV index in Princeville?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

How high is the UV index in December in Princeville?

In December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Princeville, IL

Average temperature in December - Princeville, IL
  • Average high temperature in December: 35.8°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 (29.7°F).

  • Average low temperature in December: 25°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

Average pressure in December
Princeville, IL

Average pressure in December - Princeville, 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 (29.91"Hg).

Average wind speed in December
Princeville, IL

Average wind speed in December - Princeville, IL
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in December
Princeville, IL

Average humidity in December - Princeville, IL
  • Average humidity in December: 81%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Princeville, IL

Average rainfall in December - Princeville, IL
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in December
Princeville, IL

Average rainfall days in December - Princeville, IL
  • Average rainfall days in December: 5.4 days

The month with the highest number of rainy days is May (15.2 days).
The months with the least rainy days are January and February (4.2 days).

Average snowfall in December
Princeville, IL

Average snowfall in December - Princeville, IL
  • Average snowfall in December: 0.83"

The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Princeville, IL

Average snowfall days in December - Princeville, IL
  • Average snowfall days in December: 5.8 days

The month with the highest number of snowfall days is January (8.6 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
Princeville, IL

Average daylight in December / Average sunshine in December - Princeville, 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 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
Princeville, IL

Average sunshine days in December - Princeville, IL
  • Average sunshine days in December: 20.4 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (12.8 days).

Average UV index in December
Princeville, IL

Average UV index in December - Princeville, IL
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in December
Princeville, IL

Average cloud cover in December - Princeville, IL
  • Average cloud cover in December: 54

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in December
Princeville, IL

Average visibility in December - Princeville, 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).

Princeville, Illinois, USA

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