December weather forecast
Ina, IL

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Weather in December

The first month of the winter, December, is still a chilly month in Ina, Illinois, with an average temperature varying between 43.5°F (6.4°C) and 31.3°F (-0.4°C).

Temperature

The start of December comes with a reduction in the average high-temperature, receding from a cool 53.2°F (11.8°C) in November to a frosty 43.5°F (6.4°C). Throughout December, Ina witnesses a consistent average low-temperature of 31.3°F (-0.4°C).

Humidity

In December, the average relative humidity is 77%.

Rainfall

In Ina, in December, it is raining for 7.8 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, there are 122.7 rainfall days, and 18.03" (458mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In December, in Ina, it is snowing for 2.8 days. Throughout December, 0.63" (16mm) of snow is accumulated. In Ina, Illinois, during the entire year, snow falls for 14.5 days and aggregates up to 2.64" (67mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 6:53 am and sunset at 4:35 pm. On the last day of December, in Ina, sunrise is at 7:11 am and sunset at 4:45 pm CST.

Sunshine

The average sunshine in December is 4.7h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in Ina in December?

In Ina, in December, the average high-temperature is 43.5°F (6.4°C), and the average low-temperature is 31.3°F (-0.4°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is evaluated at 96.8°F (36°C).

What is the average humidity in December in Ina?

In December, the average relative humidity in Ina is 77%.

How much does it rain in Ina in December?

In Ina, during December, the rain falls for 7.8 days and regularly aggregates up to 1.02" (26mm) of precipitation.

How many days does it snow in December in Ina?

In Ina, in December, during 2.8 snowfall days, 0.63" (16mm) of snow is typically accumulated.

What is the month with the shortest days in Ina?

The month with the shortest days is December, with an average of 9h and 36min of daylight.

How many hours of daylight does Ina have in December?

In December, the average day length is 9h and 34min.

When is the sunrise / sunset in December in Ina?

On the first day of December in Ina, sunrise is at 6:53 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:45 pm CST.

How long on average sun shines in December in Ina?

The average sunshine duration in December in Ina, Illinois, is 4.7h.

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

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

What is the UV index intensity in December in Ina?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Ina, IL

Average temperature in December - Ina, IL
  • Average high temperature in December: 43.5°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 31.3°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in December
Ina, IL

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Ina, IL

Average wind speed in December - Ina, IL
  • Average wind speed in December: 9mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity in December
Ina, IL

Average humidity in December - Ina, IL
  • Average humidity in December: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Ina, IL

Average rainfall in December - Ina, IL
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in December
Ina, IL

Average rainfall days in December - Ina, IL
  • Average rainfall days in December: 7.8 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in December
Ina, IL

Average snowfall in December - Ina, IL
  • Average snowfall in December: 0.63"

The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Ina, IL

Average snowfall days in December - Ina, IL
  • Average snowfall days in December: 2.8 days

The month with the highest number of snowfall days is January (4.5 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
Ina, IL

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in December
Ina, IL

Average sunshine days in December - Ina, IL
  • Average sunshine days in December: 20.3 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is May (13.8 days).

Average UV index in December
Ina, IL

Average UV index in December - Ina, 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, November and December (UV index 2).

Average cloud cover in December
Ina, IL

Average cloud cover in December - Ina, IL
  • Average cloud cover in December: 49

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in December
Ina, IL

Average visibility in December - Ina, 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).

Ina, Illinois, USA

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