December weather forecast
Hamletsburg, IL

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Weather in December

The first month of the winter, December, is still a chilly month in Hamletsburg, Illinois, with an average temperature varying between 34.2°F (1.2°C) and 46.4°F (8°C).

Temperature

Hamletsburg's weather in December involves a decrease in the average high-temperature, moving down from November's moderate 55.4°F (13°C) to a frosty 46.4°F (8°C). December brings Hamletsburg a consistent average low-temperature of 34.2°F (1.2°C).

Humidity

In Hamletsburg, the average relative humidity in December is 78%.

Rainfall

In Hamletsburg, Illinois, in December, during 7.1 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Hamletsburg, during the entire year, the rain falls for 94.8 days and collects up to 8.7" (221mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Hamletsburg, Illinois, in December, during 2.2 snowfall days, 0.08" (2mm) of snow is typically accumulated. In Hamletsburg, during the entire year, snow falls for 11 days and aggregates up to 0.83" (21mm) of snow.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:49 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:46 pm CST.

Sunshine

In December, the average sunshine is 4.9h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Hamletsburg in December?

In December, in Hamletsburg, the average high-temperature is 46.4°F (8°C), and the average low-temperature is 34.2°F (1.2°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in September is estimated at 86°F (30°C).

What is the average humidity in December in Hamletsburg?

The average relative humidity in December in Hamletsburg is 78%.

How much does it rain in Hamletsburg in December?

In Hamletsburg, Illinois, during December, the rain falls for 7.1 days and regularly aggregates up to 0.63" (16mm) of precipitation.

How much does it snow in Hamletsburg in December?

In Hamletsburg, in December, snow falls for 2.2 days, with typically accumulated 0.08" (2mm) of snow.

What is the month with the shortest days in Hamletsburg?

December has the shortest days of the year in Hamletsburg, with an average of 9h and 42min of daylight.

How many hours of daylight does Hamletsburg have in December?

In December, the average day length in Hamletsburg, Illinois, is 9h and 40min.

When are sunrise and sunset in December in Hamletsburg?

On the first day of December in Hamletsburg, sunrise is at 6:49 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:46 pm CST.

How many hours of sunshine does Hamletsburg have in December?

The average sunshine duration in December in Hamletsburg, Illinois, is 4.9h.

What are the months with the lowest UV index in Hamletsburg?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December in Hamletsburg?

In Hamletsburg, Illinois, the average daily maximum UV index in December is 2. A UV Index reading 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
Hamletsburg, IL

Average temperature in December - Hamletsburg, IL
  • Average high temperature in December: 46.4°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.7°F).

  • Average low temperature in December: 34.2°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in December
Hamletsburg, IL

Average pressure in December - Hamletsburg, IL
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Hamletsburg, IL

Average wind speed in December - Hamletsburg, IL
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).

Average humidity in December
Hamletsburg, IL

Average humidity in December - Hamletsburg, IL
  • Average humidity in December: 78%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Hamletsburg, IL

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

The wettest month (with the highest rainfall) is February (1.06").
The driest month (with the least rainfall) is September (0.28").

Average rainfall days in December
Hamletsburg, IL

Average rainfall days in December - Hamletsburg, IL
  • Average rainfall days in December: 7.1 days

The month with the highest number of rainy days is July (10.7 days).
The month with the least rainy days is November (5.7 days).

Average snowfall in December
Hamletsburg, IL

Average snowfall in December - Hamletsburg, IL
  • Average snowfall in December: 0.08"

The month with the highest snowfall is February (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Hamletsburg, IL

Average snowfall days in December - Hamletsburg, IL
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is February (3.1 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
Hamletsburg, IL

Average daylight in December / Average sunshine in December - Hamletsburg, IL
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in December
Hamletsburg, IL

Average sunshine days in December - Hamletsburg, IL
  • Average sunshine days in December: 22.4 days

The month with the most sunshine days is October (23.3 days).
The month with the least sunshine days is July (15.7 days).

Average UV index in December
Hamletsburg, IL

Average UV index in December - Hamletsburg, IL
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Hamletsburg, IL

Average cloud cover in December - Hamletsburg, IL
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).

Average visibility in December
Hamletsburg, IL

Average visibility in December - Hamletsburg, IL
  • Average visibility in December: 6mi

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

Hamletsburg, Illinois, USA

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