December weather forecast
Paris, IL

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Weather in December

December announces winter's arrival in Paris, Illinois, with a drop in temperature to a chilly 39°F (3.9°C). Channeling the city's festive spirit, the cold December days bring the joy of snowfall and holiday cheer. The bitter cold, contrasting starkly with November's moderate coolness, elicits visions of cozy fireplaces and warm drinks. Clear nights adorned by twinkling festive lights form an enchanting sight. As the year ends, the weather swings complete circle, bracing for yet another chilly January.

Temperature

December brings a decrease in the average high-temperature, falling from November's chilly 49.6°F (9.8°C) to a wintry 39°F (3.9°C). During December, the average low-temperature in Paris is a subzero cold 28.2°F (-2.1°C).

Humidity

In Paris, the average relative humidity in December is 80%.

Rainfall

In Paris, Illinois, during December, the rain falls for 8.3 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, there are 133.4 rainfall days, and 19.49" (495mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Paris are January through April, November and December. December is the month with the most snowfall in Paris. Snow falls for 4.8 days and accumulates 1.61" (41mm) of snow.

Daylight

The month with the shortest days in Paris is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 6:52 am and sunset at 4:27 pm. On the last day of December, in Paris, sunrise is at 7:11 am and sunset at 4:36 pm CST.

Sunshine

The average sunshine in December in Paris is 4.4h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Paris. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Frequently asked questions

How cold does it get in December?

December temperatures vary between a high-temperature of 39°F (3.9°C) and a low-temperature of 28.2°F (-2.1°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 80%.

How much does it rain in December?

In Paris, during December, the rain falls for 8.3 days and regularly aggregates up to 1.26" (32mm) of precipitation.

What is the snowiest month?

The month with the most snowfall is December, when snow falls for 4.8 days and typically aggregates up to 1.61" (41mm) of snow.

How many days does it snow in December?

In Paris, during December, snow falls for 4.8 days and regularly aggregates up to 1.61" (41mm) of snow.

What is the month with the shortest days?

The month with the shortest days in Paris is December, with an average of 9h and 24min of daylight.

How many hours of daylight does Paris have in December?

In December, the average day length is 9h and 26min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:52 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:36 pm CST.

How long on average sun shines in December?

The average sunshine duration in December is 4.4h.

What is the month with the lowest UV index?

January, February, November 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 December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Paris, IL

Average temperature in December - Paris, IL
  • Average high temperature in December: 39°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in December: 28.2°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure in December
Paris, IL

Average pressure in December - Paris, IL
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Paris, IL

Average wind speed in December - Paris, IL
  • Average wind speed in December: 9.5mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).

Average humidity in December
Paris, IL

Average humidity in December - Paris, IL
  • Average humidity in December: 80%

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

Average rainfall in December
Paris, IL

Average rainfall in December - Paris, IL
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is February (0.94").

Average rainfall days in December
Paris, IL

Average rainfall days in December - Paris, IL
  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.3 days).

Average snowfall in December
Paris, IL

Average snowfall in December - Paris, IL
  • Average snowfall in December: 1.61"

The month with the highest snowfall is December (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Paris, IL

Average snowfall days in December - Paris, IL
  • Average snowfall days in December: 4.8 days

The month with the highest number of snowfall days is January (6.9 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
Paris, IL

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in December
Paris, IL

Average sunshine days in December - Paris, IL
  • Average sunshine days in December: 19.2 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in December
Paris, IL

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

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

Average cloud cover in December
Paris, IL

Average cloud cover in December - Paris, IL
  • Average cloud cover in December: 54

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June, August and September (Cloud cover 31).

Average visibility in December
Paris, IL

Average visibility in December - Paris, 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).

Paris, Illinois, USA

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