December weather forecast
Lamar, OK

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Weather in December

December, the first month of the winter in Lamar, is still a chilly month, with an average temperature ranging between min 35.4°F (1.9°C) and max 49.8°F (9.9°C).

Temperature

In December, the average high-temperature goes from a refreshing 60.1°F (15.6°C) in November to a chilly 49.8°F (9.9°C). During the month of December, the temperature generally drops to a low average of 35.4°F (1.9°C).

Humidity

In December, the average relative humidity is 70%.

Rainfall

In Lamar, during December, the rain falls for 7.5 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Lamar, during the entire year, the rain falls for 133 days and collects up to 29.72" (755mm) of precipitation.

Snowfall

Months with snowfall in Lamar are January through April, November and December. In Lamar, during December, snow falls for 1.1 days and regularly aggregates up to 0.51" (13mm) of snow. Throughout the year, in Lamar, there are 6.1 snowfall days, and 3.46" (88mm) of snow is accumulated.

Daylight

The month with the shortest days in Lamar is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 7:14 am and sunset at 5:12 pm. On the last day of December, in Lamar, sunrise is at 7:32 am and sunset at 5:23 pm CST.

Sunshine

With an average of 5.7h of sunshine, December has the least sunshine of the year.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 2 in December leads to these recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Lamar in December?

An average high-temperature, in December, in Lamar, is 49.8°F (9.9°C) and the average low-temperature is 35.4°F (1.9°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 91.4°F (33°C).

What is the average humidity in December in Lamar?

The average relative humidity in December is 70%.

How many days does it rain in December in Lamar?

In December, the rain falls for 7.5 days. Throughout December, 1.5" (38mm) of precipitation is accumulated.

How many days does it snow in December in Lamar?

In December, it is snowing for 1.1 days. Throughout December, 0.51" (13mm) of snow is accumulated.

What is the month with the shortest days in Lamar?

The month with the shortest days in Lamar, Oklahoma, is December, with an average of 9h and 48min of daylight.

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

The average day length in December is 9h and 50min.

When is the sunrise / sunset in December in Lamar?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 5:12 pm. On the last day of the month, in Lamar, Oklahoma, sunrise is at 7:32 am and sunset at 5:23 pm CST.

What is the month with the least sunshine in Lamar?

With an average of 5.7h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December in Lamar?

In December, the average sunshine duration in Lamar is 5.7h.

When is the lowest UV index in Lamar?

The month with the lowest UV index in Lamar, Oklahoma, is December, with an average maximum UV index of 2.

What is the UV index reading in December in Lamar?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes 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
Lamar, OK

Average temperature in December - Lamar, OK
  • Average high temperature in December: 49.8°F

The warmest months (with the highest average high temperature) are July and August (91.9°F).
The month with the lowest average high temperature is January (48.6°F).

  • Average low temperature in December: 35.4°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

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Average pressure in December
Lamar, OK

Average pressure in December - Lamar, OK
  • 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 (29.89"Hg).

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Average wind speed in December
Lamar, OK

Average wind speed in December - Lamar, OK
  • Average wind speed in December: 9.4mph

The windiest month (with the highest average wind speed) is March (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).

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Average humidity in December
Lamar, OK

Average humidity in December - Lamar, OK
  • Average humidity in December: 70%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in December
Lamar, OK

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

The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is February (1.46").

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Average rainfall days in December
Lamar, OK

Average rainfall days in December - Lamar, OK
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in December
Lamar, OK

Average snowfall in December - Lamar, OK
  • Average snowfall in December: 0.51"

The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Lamar, OK

Average snowfall days in December - Lamar, OK
  • Average snowfall days in December: 1.1 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Lamar, OK
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in December
Lamar, OK

Average sunshine days in December - Lamar, OK
  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is May (13.6 days).

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Average UV index in December
Lamar, OK

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

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

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Average cloud cover in December
Lamar, OK

Average cloud cover in December - Lamar, OK
  • Average cloud cover in December: 35

The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in December
Lamar, OK

Average visibility in December - Lamar, OK
  • 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, Oklahoma, USA

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