December weather forecast
Augusta, IL

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Weather in December

December, the first month of the winter in Augusta, is still a cold month, with temperature in the range of an average low of 25.9°F (-3.4°C) and an average high of 37°F (2.8°C).

Temperature

December indicates a shift in the average high-temperature, from November's chilly 49.1°F (9.5°C) to an icy 37°F (2.8°C). In Augusta, an average nighttime temperature of 25.9°F (-3.4°C) is expected during December.

Humidity

The average relative humidity in December is 79%.

Rainfall

December is the month with the least rainfall. Rain falls for 4.3 days and accumulates 0.35" (9mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Augusta, Illinois, in December, snow falls for 3.7 days, with typically accumulated 0.24" (6mm) of snow. In Augusta, Illinois, during the entire year, snow falls for 20.5 days and aggregates up to 2.44" (62mm) of snow.

Daylight

The month with the shortest days in Augusta is December, with an average of 9h and 24min of daylight.
On the first day of December in Augusta, sunrise is at 7:07 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:48 pm CST.

Sunshine

In Augusta, the average sunshine in December is 4.6h.

UV index

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

How cold is it in Augusta in December?

The high-temperature, in December, in Augusta, records 37°F (2.8°C), while the low-temperature is 25.9°F (-3.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in December in Augusta?

In Augusta, Illinois, the average relative humidity in December is 79%.

What is the driest month in Augusta?

The month with the least rainfall in Augusta, Illinois, is December, when the rain falls for 4.3 days and typically collects 0.35" (9mm) of precipitation.

How many days does it rain in December in Augusta?

In Augusta, in December, it is raining for 4.3 days, with typically 0.35" (9mm) of accumulated precipitation.

How much does it snow in Augusta in December?

In Augusta, during December, snow falls for 3.7 days and regularly aggregates up to 0.24" (6mm) of snow.

What is the month with the shortest days in Augusta?

December has the shortest days of the year in Augusta, with an average of 9h and 24min of daylight.

How many hours of daylight does Augusta have in December?

In December, the average day length is 9h and 22min.

When is the sunrise / sunset in December in Augusta?

On the first day of December, sunrise is at 7:07 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:48 pm CST.

How many hours of sunshine does Augusta have in December?

In Augusta, the average sunshine duration in December is 4.6h.

What is the UV index reading in December in Augusta?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
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
Augusta, IL

Average temperature in December - Augusta, IL
  • Average high temperature in December: 37°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in December: 25.9°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (19°F).

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Average pressure in December
Augusta, IL

Average pressure in December - Augusta, IL
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Augusta, IL

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

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in December
Augusta, IL

Average humidity in December - Augusta, IL
  • Average humidity in December: 79%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Augusta, IL

Average rainfall in December - Augusta, IL
  • Average rainfall in December: 0.35"

The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is December (0.35").

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Average rainfall days in December
Augusta, IL

Average rainfall days in December - Augusta, IL
  • Average rainfall days in December: 4.3 days

The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is January (3.3 days).

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Average snowfall in December
Augusta, IL

Average snowfall in December - Augusta, IL
  • Average snowfall in December: 0.24"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Augusta, IL

Average snowfall days in December - Augusta, IL
  • Average snowfall days in December: 3.7 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Augusta, IL

Average daylight in December / Average sunshine in December - Augusta, 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 24min).

  • Average sunshine in December: 4h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in December
Augusta, IL

Average sunshine days in December - Augusta, IL
  • Average sunshine days in December: 23.5 days

The month with the most sunshine days is December (23.5 days).
The month with the least sunshine days is June (13.9 days).

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Average UV index in December
Augusta, IL

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

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

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Average cloud cover in December
Augusta, IL

Average cloud cover in December - Augusta, IL
  • Average cloud cover in December: 51

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
Augusta, IL

Average visibility in December - Augusta, 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).

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Augusta, Illinois, USA

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