Peoria
Illinois, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Peoria, IL

A night view of lit street lights and tall buildings in the city of Peoria, Illinois, as well as the night sky reflected in the waterfront
A night view of lit street lights and tall buildings in the city of Peoria, Illinois, as well as the night sky reflected in the waterfront
December, the first month of the winter, in Peoria, is still a cold month, with average temperature varying between 21°F (-6.1°C) and 36.1°F (2.3°C).

Temperature

In Peoria, Illinois, the average high-temperature decreases, from a cool 50.4°F (10.2°C) in November, to a cold 36.1°F (2.3°C). In December, the average low-temperature is 21°F (-6.1°C).

Humidity

With an average relative humidity of 78%, December is the most humid month.

Rainfall

In Peoria, it is raining for 10.1 days, with typically 2.4" (61.5mm) of accumulated precipitation. Throughout the year, in Peoria, there are 116.5 rainfall days, and 36.5" (926.9mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Peoria are January through April, November and December. The month with the most snowfall is December when snow falls for 5.5 days and typically aggregates up to 7.1" (180.3mm) of snow.

Daylight

With an average of 9.3h of daylight, December has the shortest days of the year.

Sunshine

With an average of 3.8h of sunshine, December has the least sunshine of the year.

What is the temperature in December in Peoria?

In December, in Peoria, Illinois, the average high-temperature is 36.1°F (2.3°C), and the average low-temperature is 21°F (-6.1°C).

What is the most humid month in Peoria?

With an average relative humidity of 78%, December is the most humid month in Peoria.

What is the average humidity in December in Peoria?

In December, the average relative humidity in Peoria is 78%.

How much does it rain in Peoria in December?

In Peoria, during December, the rain falls for 10.1 days and regularly aggregates up to 2.4" (61.5mm) of precipitation.

How much does it snow in Peoria in December?

In Peoria, Illinois, in December, snow falls for 5.5 days, with typically accumulated 7.1" (180.3mm) of snow.

What is the snowiest month in Peoria?

December is the month with the most snowfall. Snow falls for 5.5 days and accumulates 7.1" (180.3mm) of snow.

What is the month with the shortest days in Peoria?

With an average of 9.3h of daylight, December has the shortest days of the year in Peoria, Illinois.

What is the average length of the day in December in Peoria?

In December, the average length of the day is 9.3h.

What is the month with the least sunshine in Peoria?

The month with the least sunshine in Peoria, Illinois, is December, with an average of 3.8h of sunshine.

How long on average sun shines in December in Peoria?

The average sunshine in December is 3.8h.
Average temperature in December - Peoria, IL
  • Average high temperature in December: 36.1°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (32.8°F).

  • Average low temperature in December: 21°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (17°F).

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

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is April (64.7%).

Average rainfall in December - Peoria, IL
  • Average rainfall in December: 2.4"

The wettest month (with the highest rainfall) is May (4.3").
Driest months (with the lowest rainfall) are January and February (1.8").

Average rainfall days in December - Peoria, IL
  • Average rainfall days in December: 10.1 days

The month with the highest number of rainy days is May (11.8 days).
The month with the lowest number of rainy days is September (8.1 days).

Average snowfall in December - Peoria, IL
  • Average snowfall in December: 7.1"

The month with the highest snowfall is December (7.1").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average snowfall days in December - Peoria, IL
  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is January (5.8 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Peoria, IL
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 3.8h

The month with most sunshine is June (Average sunshine: 10.2h).
The month with least sunshine is December (Average sunshine: 3.8h).