December weather forecast
Piper City, IL

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Weather in December

December, the first month of the winter in Piper City, is also a wintry month, with temperature in the range of an average low of 26.2°F (-3.2°C) and an average high of 36.5°F (2.5°C).

Temperature

A shift in Piper City's weather is observed as November turns into December, with the average high temperature reducing from a frosty 47.8°F (8.8°C) to an icy 36.5°F (2.5°C). An average low-temperature of 26.2°F (-3.2°C) is expected in Piper City, Illinois, during December.

Humidity

The average relative humidity in December is 81%.

Rainfall

January, February and December are months with the least rain in Piper City when the rain falls for 7.1 days and typically aggregates up to 0.91" (23mm) of rain.

Snowfall

Months with snowfall in Piper City are January through April, November and December. In Piper City, in December, snow falls for 6.1 days, with typically accumulated 1.02" (26mm) of snow. Throughout the year, there are 30.7 snowfall days, and 8.19" (208mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December in Piper City, sunrise is at 6:58 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:35 pm CST.

Sunshine

In December, the average sunshine in Piper City is 4.4h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Piper City?

The high-temperature, in December, in Piper City, is 36.5°F (2.5°C), while the low-temperature averages to 26.2°F (-3.2°C). In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is estimated at 87.8°F (31°C).

What is the average humidity in December in Piper City?

In Piper City, Illinois, the average relative humidity in December is 81%.

What is the driest month in Piper City?

January, February and December are months with the least rain in Piper City when the rain falls for 7.1 days and typically aggregates up to 0.91" (23mm) of rain.

How many days does it rain in December in Piper City?

In December, in Piper City, the rain falls for 7.1 days. Throughout December, 0.91" (23mm) of precipitation is accumulated.

How many days does it snow in December in Piper City?

In December, in Piper City, Illinois, it is snowing for 6.1 days. Throughout December, 1.02" (26mm) of snow is accumulated.

What is the month with the shortest days in Piper City?

December has the shortest days of the year in Piper City, Illinois, with an average of 9h and 18min of daylight.

What is the average length of the day in December in Piper City?

In Piper City, the average day length in December is 9h and 19min.

When are sunrise and sunset in December in Piper City?

In December, on the first day of the month, sunrise is at 6:58 am and sunset at 4:25 pm. On the last day of the month, in Piper City, Illinois, sunrise is at 7:16 am and sunset at 4:35 pm CST.

How many hours of sunshine does Piper City have in December?

The average sunshine duration in December in Piper City is 4.4h.

When is the lowest UV index in Piper City?

The month with the lowest UV index in Piper City is December, with an average maximum UV index of 1.

What is the UV index reading in December in Piper City?

In Piper City, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Piper City, IL

Average temperature in December - Piper City, IL
  • Average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in December: 26.2°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

Average pressure in December
Piper City, IL

Average pressure in December - Piper City, 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
Piper City, IL

Average wind speed in December - Piper City, IL
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in December
Piper City, IL

Average humidity in December - Piper City, 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
Piper City, IL

Average rainfall in December - Piper City, IL
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is May (2.44").
The driest months (with the least rainfall) are January, February and December (0.91").

Average rainfall days in December
Piper City, IL

Average rainfall days in December - Piper City, IL
  • Average rainfall days in December: 7.1 days

The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (5.5 days).

Average snowfall in December
Piper City, IL

Average snowfall in December - Piper City, IL
  • Average snowfall in December: 1.02"

The month with the highest snowfall is February (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Piper City, IL

Average snowfall days in December - Piper City, IL
  • Average snowfall days in December: 6.1 days

The month with the highest number of snowfall days is January (9.6 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
Piper City, IL

Average daylight in December / Average sunshine in December - Piper City, IL
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
Piper City, IL

Average sunshine days in December - Piper City, IL
  • Average sunshine days in December: 18.8 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in December
Piper City, IL

Average UV index in December - Piper City, IL
  • Average UV index in December: 1

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

Average cloud cover in December
Piper City, IL

Average cloud cover in December - Piper City, IL
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).

Average visibility in December
Piper City, IL

Average visibility in December - Piper City, 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).

Piper City, Illinois, USA

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