December weather forecast
Leamington, IL

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Weather in December

The first month of the winter, December, is also a frosty month in Leamington, Illinois, with temperature in the range of an average low of 32.9°F (0.5°C) and an average high of 44.6°F (7°C).

Temperature

December's onset brings a slight change in high-temperatures, falling from a fresh 54.1°F (12.3°C) in November to a chilly 44.6°F (7°C). Nightly temperatures drop to an average low of 32.9°F (0.5°C) in December.

Humidity

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

Rainfall

In December, in Leamington, the rain falls for 10.4 days. Throughout December, 2.05" (52mm) of precipitation is accumulated. Throughout the year, there are 146.3 rainfall days, and 24.96" (634mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Leamington, in December, snow falls for 3.5 days, with typically accumulated 0.63" (16mm) of snow. Throughout the year, in Leamington, there are 15.9 snowfall days, and 3.58" (91mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 6:50 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:08 am and sunset at 4:45 pm CST.

Sunshine

The average sunshine in December 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 value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

How cold does it get in December?

The average high-temperature and low-temperature during December are 44.6°F (7°C) and 32.9°F (0.5°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is calculated to be 95°F (35°C).

What is the average humidity in December?

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

How many days does it rain in December?

In Leamington, in December, it is raining for 10.4 days, with typically 2.05" (52mm) of accumulated precipitation.

How many days does it snow in December?

In Leamington, in December, snow falls for 3.5 days, with typically accumulated 0.63" (16mm) of snow.

What is the month with the shortest days in Leamington?

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

What is the average length of the day in December?

The average day length in December is 9h and 37min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:50 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 4:45 pm CST.

How many hours of sunshine does Leamington have in December?

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

What is the month with the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index in Leamington is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Leamington, IL

Average temperature in December - Leamington, IL
  • Average high temperature in December: 44.6°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in December: 32.9°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in December
Leamington, IL

Average pressure in December - Leamington, 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 (29.95"Hg).

Average wind speed in December
Leamington, IL

Average wind speed in December - Leamington, IL
  • Average wind speed in December: 9.1mph

The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in December
Leamington, IL

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

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Leamington, IL

Average rainfall in December - Leamington, IL
  • Average rainfall in December: 2.05"

The wettest month (with the highest rainfall) is April (3.27").
The driest month (with the least rainfall) is September (1.14").

Average rainfall days in December
Leamington, IL

Average rainfall days in December - Leamington, IL
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (9 days).

Average snowfall in December
Leamington, IL

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

The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Leamington, IL

Average snowfall days in December - Leamington, IL
  • Average snowfall days in December: 3.5 days

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

Average daylight in December / Average sunshine in December - Leamington, 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 month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in December
Leamington, IL

Average sunshine days in December - Leamington, IL
  • Average sunshine days in December: 17.2 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in December
Leamington, IL

Average UV index in December - Leamington, 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
Leamington, IL

Average cloud cover in December - Leamington, IL
  • Average cloud cover in December: 50

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in December
Leamington, IL

Average visibility in December - Leamington, 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).

Leamington, Illinois, USA

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