December weather forecast
Cambria, IL

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Weather in December

The first month of the winter, December, is also a frosty month in Cambria, Illinois, with an average temperature ranging between min 31.8°F (-0.1°C) and max 43.9°F (6.6°C).

Temperature

With December's arrival, Cambria's weather changes as the average high-temperature falls from a fresh 53.8°F (12.1°C) in November to a frosty 43.9°F (6.6°C). In Cambria, an average low-temperature of 31.8°F (-0.1°C) is recorded during December nights.

Humidity

In December, the average relative humidity is 78%.

Rainfall

In December, the rain falls for 9.1 days. Throughout December, 1.46" (37mm) of precipitation is accumulated. In Cambria, during the entire year, the rain falls for 137.6 days and collects up to 23.03" (585mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Cambria, in December, during 2.7 snowfall days, 0.91" (23mm) of snow is typically accumulated. Throughout the year, there are 14.5 snowfall days, and 4.13" (105mm) of snow is accumulated.

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 4:37 pm. On the last day of December, sunrise is at 7:11 am and sunset at 4:47 pm CST.

Sunshine

In December, the average sunshine is 4.7h.

UV index

January, February 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 low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.

Frequently asked questions

Is December cold?

Cambria in December has an average high-temperature of 43.9°F (6.6°C) and an average low-temperature of 31.8°F (-0.1°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 84.2°F (29°C).

What is the average humidity in December?

In December, the average relative humidity is 78%.

How many days does it rain in December?

In Cambria, in December, it is raining for 9.1 days, with typically 1.46" (37mm) of accumulated precipitation.

How much does it snow in December?

In Cambria, in December, during 2.7 snowfall days, 0.91" (23mm) of snow is typically accumulated.

What is the month with the shortest days in Cambria?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

How many hours of daylight does Cambria have in December?

In December, the average day length is 9h and 36min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:53 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:47 pm CST.

How long on average sun shines in December?

In Cambria, the average sunshine duration in December is 4.7h.

When is the lowest UV index?

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

How high is the UV index in December?

In Cambria, the average daily maximum UV index in December 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
Cambria, IL

Average temperature in December - Cambria, IL
  • Average high temperature in December: 43.9°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in December: 31.8°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 (26.1°F).

Average pressure in December
Cambria, IL

Average pressure in December - Cambria, 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 (29.94"Hg).

Average wind speed in December
Cambria, IL

Average wind speed in December - Cambria, IL
  • Average wind speed in December: 8.8mph

The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in December
Cambria, IL

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

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

Average rainfall in December
Cambria, IL

Average rainfall in December - Cambria, IL
  • Average rainfall in December: 1.46"

The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.1").

Average rainfall days in December
Cambria, IL

Average rainfall days in December - Cambria, IL
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (7.8 days).

Average snowfall in December
Cambria, IL

Average snowfall in December - Cambria, IL
  • Average snowfall in December: 0.91"

The months with the highest snowfall are January and February (0.94").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Cambria, IL

Average snowfall days in December - Cambria, IL
  • Average snowfall days in December: 2.7 days

The month with the highest number of snowfall days is February (4.3 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
Cambria, IL

Average daylight in December / Average sunshine in December - Cambria, 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 36min).

  • Average sunshine in December: 4h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in December
Cambria, IL

Average sunshine days in December - Cambria, IL
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (12.9 days).

Average UV index in December
Cambria, IL

Average UV index in December - Cambria, 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
Cambria, IL

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

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

Average visibility in December
Cambria, IL

Average visibility in December - Cambria, 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).

Cambria, Illinois, USA

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