December weather forecast
Plato Center, IL

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Weather in December

The first month of the winter, December, is also an icy month in Plato Center, Illinois, with an average temperature varying between 32.9°F (0.5°C) and 22.3°F (-5.4°C).

Temperature

In Plato Center, entering December brings a temperature decrement, reducing from November's chilly 44.4°F (6.9°C) to a wintry 32.9°F (0.5°C). During December, Plato Center experiences an average low-temperature of 22.3°F (-5.4°C) at night.

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Plato Center, during December, the rain falls for 4.5 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, there are 103.9 rainfall days, and 8.5" (216mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Plato Center. In December, it is snowing for 7.8 days. Throughout December, 0.39" (10mm) of snow is accumulated. Throughout the year, there are 32.9 snowfall days, and 3.98" (101mm) 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 December, sunrise is at 7:02 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:32 pm CST.

Sunshine

In Plato Center, the average sunshine in December is 3.8h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: During December, 1 as the daily maximum UV index converts into the following advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The high-temperature, in December, in Plato Center, is 32.9°F (0.5°C), while the low-temperature averages to 22.3°F (-5.4°C).

What is the average humidity in December?

In Plato Center, the average relative humidity in December is 83%.

How much does it rain in December?

In December, the rain falls for 4.5 days. Throughout December, 0.43" (11mm) of precipitation is accumulated.

How much does it snow in December?

In Plato Center, in December, snow falls for 7.8 days, with typically accumulated 0.39" (10mm) of snow.

What is the month with the shortest days?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Plato Center, the average day length in December is 9h and 11min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:02 am and sunset at 4:23 pm. On the last day of the month, in Plato Center, sunrise is at 7:21 am and sunset at 4:32 pm CST.

How many hours of sunshine does Plato Center have in December?

The average sunshine duration in December is 3.8h.

What is the month with the lowest UV index?

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

What is the UV index reading in December in Plato Center?

In Plato Center, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health threat from 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
Plato Center, IL

Average temperature in December - Plato Center, IL
  • Average high temperature in December: 32.9°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in December: 22.3°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

Average pressure in December
Plato Center, IL

Average pressure in December - Plato Center, 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
Plato Center, IL

Average wind speed in December - Plato Center, IL
  • Average wind speed in December: 9.2mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in December
Plato Center, IL

Average humidity in December - Plato Center, IL
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).

Average rainfall in December
Plato Center, IL

Average rainfall in December - Plato Center, IL
  • Average rainfall in December: 0.43"

The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is November (0.39").

Average rainfall days in December
Plato Center, IL

Average rainfall days in December - Plato Center, IL
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is January (3.3 days).

Average snowfall in December
Plato Center, IL

Average snowfall in December - Plato Center, IL
  • Average snowfall in December: 0.39"

The month with the highest snowfall is January (1.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Plato Center, IL

Average snowfall days in December - Plato Center, IL
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Plato Center, IL

Average daylight in December / Average sunshine in December - Plato Center, 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: 3h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
Plato Center, IL

Average sunshine days in December - Plato Center, IL
  • Average sunshine days in December: 22.3 days

The month with the most sunshine days is December (22.3 days).
The month with the least sunshine days is June (13.2 days).

Average UV index in December
Plato Center, IL

Average UV index in December - Plato Center, IL
  • Average UV index in December: 1

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

Average cloud cover in December
Plato Center, IL

Average cloud cover in December - Plato Center, IL
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are August and September (Cloud cover 36).

Average visibility in December
Plato Center, IL

Average visibility in December - Plato Center, IL
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).

Plato Center, Illinois, USA

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