December weather forecast
Kewanee, MO

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Weather in December

December, the first month of the winter in Kewanee, is also a frosty month, with an average temperature fluctuating between 35.4°F (1.9°C) and 47.1°F (8.4°C).

Temperature

In the transition to December, Kewanee observes a drop in the average high-temperature, moving from a moderate 56.3°F (13.5°C) in November to a frosty 47.1°F (8.4°C). In December, the average low-temperature records at a cold 35.4°F (1.9°C) during the nights.

Humidity

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

Rainfall

In Kewanee, in December, during 10.5 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. In Kewanee, during the entire year, the rain falls for 151.9 days and collects up to 36.06" (916mm) of precipitation.

Snowfall

January through March, October through December are months with snowfall. In Kewanee, in December, snow falls for 1.2 days, with typically accumulated 0.35" (9mm) of snow. In Kewanee, during the entire year, snow falls for 8.9 days and aggregates up to 4.21" (107mm) of snow.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:52 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 4:52 pm CST.

Sunshine

In December, the average sunshine is 4.9h.

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 hazard from exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 2 in December leads to these recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

In Kewanee, in December, the average high-temperature is 47.1°F (8.4°C), and the average low-temperature is 35.4°F (1.9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is calculated to be 86°F (30°C).

What is the average humidity in December in Kewanee?

The average relative humidity in December is 77%.

How many days does it rain in December?

In December, the rain falls for 10.5 days. Throughout December, 2.87" (73mm) of precipitation is accumulated.

How much does it snow in December?

In Kewanee, in December, snow falls for 1.2 days, with typically accumulated 0.35" (9mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 42min of daylight.

What is the average length of the day in December?

In Kewanee, the average day length in December is 9h and 42min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:52 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 4:52 pm CST.

How many hours of sunshine does Kewanee have in December?

In December, the average sunshine duration is 4.9h.

When is 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 is 2. A UV Index reading of 2, and below, represents a low health threat 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
Kewanee, MO

Average temperature in December - Kewanee, MO
  • Average high temperature in December: 47.1°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (42.8°F).

  • Average low temperature in December: 35.4°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (30°F).

Average pressure in December
Kewanee, MO

Average pressure in December - Kewanee, MO
  • 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
Kewanee, MO

Average wind speed in December - Kewanee, MO
  • Average wind speed in December: 8.9mph

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
Kewanee, MO

Average humidity in December - Kewanee, MO
  • Average humidity in December: 77%

The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).

Average rainfall in December
Kewanee, MO

Average rainfall in December - Kewanee, MO
  • Average rainfall in December: 2.87"

The wettest month (with the highest rainfall) is March (4.25").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days in December
Kewanee, MO

Average rainfall days in December - Kewanee, MO
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in December
Kewanee, MO

Average snowfall in December - Kewanee, MO
  • Average snowfall in December: 0.35"

The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in December
Kewanee, MO

Average snowfall days in December - Kewanee, MO
  • Average snowfall days in December: 1.2 days

The month with the highest number of snowfall days is February (3.3 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
Kewanee, MO

Average daylight in December / Average sunshine in December - Kewanee, MO
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Kewanee, MO

Average sunshine days in December - Kewanee, MO
  • Average sunshine days in December: 18.3 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (12.8 days).

Average UV index in December
Kewanee, MO

Average UV index in December - Kewanee, MO
  • 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
Kewanee, MO

Average cloud cover in December - Kewanee, MO
  • Average cloud cover in December: 46

The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).

Average visibility in December
Kewanee, MO

Average visibility in December - Kewanee, MO
  • 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).

Kewanee, Missouri, USA

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