December weather forecast
Camp Grove, IL

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Weather in December

The first month of the winter, December, is also an icy month in Camp Grove, Illinois, with an average temperature ranging between max 35.8°F (2.1°C) and min 25°F (-3.9°C).

Temperature

With December's arrival, Camp Grove, Illinois, sees a decrease in average high-temperatures, moving from a frosty 47.5°F (8.6°C) in November to a wintry 35.8°F (2.1°C). During December, the average low-temperature is a subzero cold 25°F (-3.9°C).

Humidity

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

Rainfall

In Camp Grove, in December, during 5.4 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. Throughout the year, in Camp Grove, there are 116.8 rainfall days, and 13.98" (355mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Camp Grove, during December, snow falls for 5.8 days and regularly aggregates up to 0.83" (21mm) of snow. Throughout the year, there are 26.8 snowfall days, and 6.26" (159mm) 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 Camp Grove, sunrise is at 7:04 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:40 pm CST.

Sunshine

In Camp Grove, the average sunshine in December is 4.3h.

UV index

The months with the lowest UV index in Camp Grove are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. To guard against the harmful effects of the Sun, minimize exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Camp Grove?

The average high-temperature, in December, in Camp Grove, is 35.8°F (2.1°C), while the average low-temperature is 25°F (-3.9°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 87.8°F (31°C).

What is the average humidity in December in Camp Grove?

The average relative humidity in December in Camp Grove is 81%.

How much does it rain in Camp Grove in December?

In Camp Grove, Illinois, in December, during 5.4 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

How many days does it snow in December in Camp Grove?

In December, in Camp Grove, 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 Camp Grove?

The month with the shortest days in Camp Grove is December, with an average of 9h and 18min of daylight.

What is the average length of the day in December in Camp Grove?

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

When are sunrise and sunset in December in Camp Grove?

In December, on the first day of the month, sunrise is at 7:04 am and sunset at 4:30 pm. On the last day of the month, in Camp Grove, Illinois, sunrise is at 7:23 am and sunset at 4:40 pm CST.

How many hours of sunshine does Camp Grove have in December?

In December, the average sunshine duration in Camp Grove is 4.3h.

What is the month with the lowest UV index in Camp Grove?

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

How high is the UV index in December in Camp Grove?

The average daily maximum UV index in December in Camp Grove is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Camp Grove, IL

Average temperature in December - Camp Grove, 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
Camp Grove, IL

Average pressure in December - Camp Grove, 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
Camp Grove, IL

Average wind speed in December - Camp Grove, 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
Camp Grove, IL

Average humidity in December - Camp Grove, 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
Camp Grove, IL

Average rainfall in December - Camp Grove, 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
Camp Grove, IL

Average rainfall days in December - Camp Grove, 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
Camp Grove, IL

Average snowfall in December - Camp Grove, 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
Camp Grove, IL

Average snowfall days in December - Camp Grove, 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
Camp Grove, IL

Average daylight in December / Average sunshine in December - Camp Grove, 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
Camp Grove, IL

Average sunshine days in December - Camp Grove, 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
Camp Grove, IL

Average UV index in December - Camp Grove, 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
Camp Grove, IL

Average cloud cover in December - Camp Grove, 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
Camp Grove, IL

Average visibility in December - Camp Grove, 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).

Camp Grove, Illinois, USA

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