December weather forecast
Dana, IL

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Weather in December

December, the first month of the winter in Dana, is still a cold month, with an average temperature ranging between max 35.8°F (2.1°C) and min 25.9°F (-3.4°C).

Temperature

In Dana, the average high-temperature in December decreases from a frosty 47.7°F (8.7°C) in November to an icy 35.8°F (2.1°C). Dana records an average nighttime low of 25.9°F (-3.4°C) in December.

Humidity

In Dana, Illinois, the average relative humidity in December is 81%.

Rainfall

In Dana, in December, it is raining for 5.5 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, in Dana, there are 122.1 rainfall days, and 15.28" (388mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In December, it is snowing for 6 days. Throughout December, 0.79" (20mm) of snow is accumulated. Throughout the year, there are 30.6 snowfall days, and 7.05" (179mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:28 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:37 pm CST.

Sunshine

In Dana, the average sunshine in December is 4.3h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 1 in December transforms into the following instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Jun 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

During December, Dana experiences an average high-temperature of 35.8°F (2.1°C) and a low-temperature of 25.9°F (-3.4°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in July is appraised at 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 81%.

How many days does it rain in December?

In Dana, in December, it is raining for 5.5 days, with typically 0.79" (20mm) of accumulated precipitation.

How much does it snow in December?

In Dana, during December, snow falls for 6 days and regularly aggregates up to 0.79" (20mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 17min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:01 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:37 pm CST.

How long on average sun shines in December?

The average sunshine duration in December is 4.3h.

What is the month with the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 1.

How high is the UV index in December?

In Dana, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health risk 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
Dana, IL

Average temperature in December - Dana, IL
  • Average high temperature in December: 35.8°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in December: 25.9°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in December
Dana, IL

Average pressure in December - Dana, IL
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Dana, IL

Average wind speed in December - Dana, IL
  • Average wind speed in December: 10mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in December
Dana, IL

Average humidity in December - Dana, IL
  • Average humidity in December: 81%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Dana, IL

Average rainfall in December - Dana, IL
  • Average rainfall in December: 0.79"

The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is November (0.71").

Average rainfall days in December
Dana, IL

Average rainfall days in December - Dana, IL
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (4.7 days).

Average snowfall in December
Dana, IL

Average snowfall in December - Dana, IL
  • Average snowfall in December: 0.79"

The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Dana, IL

Average snowfall days in December - Dana, IL
  • Average snowfall days in December: 6 days

The month with the highest number of snowfall days is January (10.3 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
Dana, IL

Average daylight in December / Average sunshine in December - Dana, 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 month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
Dana, IL

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

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in December
Dana, IL

Average UV index in December - Dana, IL
  • Average UV index in December: 1

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

Average cloud cover in December
Dana, IL

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

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 31).

Average visibility in December
Dana, IL

Average visibility in December - Dana, 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).

Dana, Illinois, USA

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