December weather forecast
Lamar, MO

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Weather in December

The first month of the winter, December, is still a chilly month in Lamar, Missouri, with temperature in the range of an average low of 30.6°F (-0.8°C) and an average high of 44.6°F (7°C).

Temperature

The shift from November to December corresponds with a decrease in the average high-temperature, down to a frosty 44.6°F (7°C) from a cool 55.2°F (12.9°C). Lamar experiences a mean temperature of 30.6°F (-0.8°C) during December nights.

Humidity

In December, the average relative humidity in Lamar is 74%.

Rainfall

January and December are months with the least rain when the rain falls for 6.7 days and typically aggregates up to 1.5" (38mm) of rain.

Snowfall

January through May, November and December are months with snowfall in Lamar, Missouri. In Lamar, Missouri, in December, during 3.1 snowfall days, 0.79" (20mm) of snow is typically accumulated. Throughout the year, there are 15.5 snowfall days, and 5.98" (152mm) of snow is accumulated.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year in Lamar.
On the first day of December in Lamar, Missouri, sunrise is at 7:13 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:09 pm CST.

Sunshine

The average sunshine in December is 5.5h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Lamar. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, a regular UV index of 2 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold does it get in Lamar in December?

December temperatures in Lamar vary between a high-temperature of 44.6°F (7°C) and a low-temperature of 30.6°F (-0.8°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 98.6°F (37°C).

What is the average humidity in December in Lamar?

The average relative humidity in December in Lamar, Missouri, is 74%.

What is the driest month in Lamar?

January and December are months with the least rain in Lamar when the rain falls for 6.7 days and typically aggregates up to 1.5" (38mm) of rain.

How much does it rain in Lamar in December?

In Lamar, Missouri, during December, the rain falls for 6.7 days and regularly aggregates up to 1.5" (38mm) of precipitation.

How many days does it snow in December in Lamar?

In December, in Lamar, it is snowing for 3.1 days. Throughout December, 0.79" (20mm) of snow is accumulated.

What is the month with the shortest days in Lamar?

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

How many hours of daylight does Lamar have in December?

In December, the average day length in Lamar, Missouri, is 9h and 38min.

What time are sunrise and sunset in December in Lamar?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:09 pm CST.

How many hours of sunshine does Lamar have in December?

In Lamar, Missouri, the average sunshine duration in December is 5.5h.

What are the months with the lowest UV index in Lamar?

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

What is the UV index intensity in December in Lamar?

The average daily maximum UV index in December in Lamar, Missouri, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe 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
Lamar, MO

Average temperature in December - Lamar, MO
  • Average high temperature in December: 44.6°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (41.4°F).

  • Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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Average pressure in December
Lamar, MO

Average pressure in December - Lamar, MO
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Lamar, MO

Average wind speed in December - Lamar, MO
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is March (10.8mph).
The calmest month (with the lowest average wind speed) is July (7mph).

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Average humidity in December
Lamar, MO

Average humidity in December - Lamar, MO
  • Average humidity in December: 74%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Lamar, MO

Average rainfall in December - Lamar, MO
  • Average rainfall in December: 1.5"

The wettest month (with the highest rainfall) is May (5.79").
The driest months (with the least rainfall) are January and December (1.5").

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Average rainfall days in December
Lamar, MO

Average rainfall days in December - Lamar, MO
  • Average rainfall days in December: 6.7 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall in December
Lamar, MO

Average snowfall in December - Lamar, MO
  • Average snowfall in December: 0.79"

The month with the highest snowfall is February (2.24").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Lamar, MO

Average snowfall days in December - Lamar, MO
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Lamar, MO

Average daylight in December / Average sunshine in December - Lamar, MO
  • 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: 5h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

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Average sunshine days in December
Lamar, MO

Average sunshine days in December - Lamar, MO
  • Average sunshine days in December: 20.8 days

The month with the most sunshine days is December (20.8 days).
The month with the least sunshine days is May (11.7 days).

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Average UV index in December
Lamar, MO

Average UV index in December - Lamar, MO
  • Average UV index in December: 2

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Lamar, MO

Average cloud cover in December - Lamar, MO
  • Average cloud cover in December: 41

The months with the most cloud cover are February and March (Cloud cover 46).
The months with the least cloud cover are June and July (Cloud cover 26).

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Average visibility in December
Lamar, MO

Average visibility in December - Lamar, 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).

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Lamar, Missouri, USA

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