December weather forecast
Alhambra, IL

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Weather in December

December, the first month of the winter in Alhambra, is still a cold month, with an average temperature varying between 41.5°F (5.3°C) and 30°F (-1.1°C).

Temperature

The beginning of December involves a decrease in the average high-temperature, transitioning from a fresh 52.3°F (11.3°C) in November to an icy 41.5°F (5.3°C). In the month of December, Alhambra experiences an average low-temperature of 30°F (-1.1°C).

Humidity

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

Rainfall

In Alhambra, in December, during 5.9 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In Alhambra, during the entire year, the rain falls for 110.6 days and collects up to 12.01" (305mm) of precipitation.

Snowfall

Months with snowfall are January through March, October through December. The month with the most snowfall is December, when snow falls for 3.1 days and typically aggregates up to 0.94" (24mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 6:59 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:17 am and sunset at 4:47 pm CST.

Sunshine

In December, the average sunshine is 4.8h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.

Frequently asked questions

How cold is it in December?

An average high-temperature, in December, in Alhambra, is 41.5°F (5.3°C) and the average low-temperature is 30°F (-1.1°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 93.2°F (34°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

How many days does it rain in December?

In December, in Alhambra, the rain falls for 5.9 days. Throughout December, 0.79" (20mm) of precipitation is accumulated.

When does it snow the most?

The month with the most snowfall is December, when snow falls for 3.1 days and typically aggregates up to 0.94" (24mm) of snow.

How much does it snow in December?

In Alhambra, during December, snow falls for 3.1 days and regularly aggregates up to 0.94" (24mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year in Alhambra, with an average of 9h and 30min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 30min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:47 pm CST.

How long on average sun shines in December in Alhambra?

In December, the average sunshine duration is 4.8h.

What is the month with the lowest UV index?

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 reading in December?

In Alhambra, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's 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
Alhambra, IL

Average temperature in December - Alhambra, IL
  • Average high temperature in December: 41.5°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in December: 30°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).

Average pressure in December
Alhambra, IL

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Alhambra, IL

Average wind speed in December - Alhambra, IL
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in December
Alhambra, IL

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

The months with the highest relative humidity are July and August (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Alhambra, IL

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

The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is February (0.55").

Average rainfall days in December
Alhambra, IL

Average rainfall days in December - Alhambra, IL
  • Average rainfall days in December: 5.9 days

The month with the highest number of rainy days is May (13.1 days).
The months with the least rainy days are January and December (5.9 days).

Average snowfall in December
Alhambra, IL

Average snowfall in December - Alhambra, IL
  • Average snowfall in December: 0.94"

The month with the highest snowfall is December (0.94").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in December
Alhambra, IL

Average snowfall days in December - Alhambra, IL
  • Average snowfall days in December: 3.1 days

The months with the highest number of snowfall days are January and February (4.8 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
Alhambra, IL

Average daylight in December / Average sunshine in December - Alhambra, IL
  • Average daylight in December: 9h and 3min

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 30min).

  • Average sunshine in December: 4h and 5min

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

Average sunshine days in December
Alhambra, IL

Average sunshine days in December - Alhambra, IL
  • Average sunshine days in December: 21.8 days

The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is July (14.5 days).

Average UV index in December
Alhambra, IL

Average UV index in December - Alhambra, 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
Alhambra, IL

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

The months with the most cloud cover are January and February (Cloud cover 50).
The months with the least cloud cover are June, July, August and September (Cloud cover 28).

Average visibility in December
Alhambra, IL

Average visibility in December - Alhambra, 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).

Alhambra, Illinois, USA

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