December weather forecast
Grainola, OK

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Weather in December

The first month of the winter, December, is still a chilly month in Grainola, Oklahoma, with temperature in the range of an average high of 46.8°F (8.2°C) and an average low of 31.6°F (-0.2°C).

Temperature

A decrease in the average high-temperature is observed during December, shifting from a mild 57.7°F (14.3°C) in November to a frosty 46.8°F (8.2°C). During December, the temperature tends to dip to an average of 31.6°F (-0.2°C) at night.

Humidity

In Grainola, the average relative humidity in December is 68%.

Rainfall

The month with the least rainfall is December, when the rain falls for 3.6 days and typically collects 0.24" (6mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall in Grainola. In Grainola, in December, snow falls for 0.7 days, with typically accumulated 0.08" (2mm) of snow. In Grainola, during the entire year, snow falls for 5.8 days and aggregates up to 0.71" (18mm) of snow.

Daylight

The month with the shortest days in Grainola is December, with an average of 9h and 42min of daylight.
On the first day of December, sunrise is at 7:21 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:20 pm CST.

Sunshine

The months with the least sunshine are January and December, with an average of 6.1h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

What are the temperatures in Grainola in December?

The average high-temperature, in December, in Grainola, is 46.8°F (8.2°C), while the average low-temperature is 31.6°F (-0.2°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is computed to be 87.8°F (31°C).

What is the average humidity in December in Grainola?

In December, the average relative humidity is 68%.

What is the driest month in Grainola?

December is the month with the least rainfall in Grainola. Rain falls for 3.6 days and accumulates 0.24" (6mm) of precipitation.

How much does it rain in Grainola in December?

In Grainola, in December, it is raining for 3.6 days, with typically 0.24" (6mm) of accumulated precipitation.

How much does it snow in Grainola in December?

In Grainola, Oklahoma, in December, during 0.7 snowfall days, 0.08" (2mm) of snow is typically accumulated.

What is the month with the shortest days in Grainola?

The month with the shortest days is December, with an average of 9h and 42min of daylight.

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

In December, the average day length in Grainola is 9h and 41min.

What time are sunrise and sunset in December in Grainola?

On the first day of December, sunrise is at 7:21 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:20 pm CST.

What are the months with the least sunshine in Grainola?

January and December, with an average of 6.1h of sunshine, are months with the least sunshine in Grainola.

How long on average sun shines in December in Grainola?

In Grainola, the average sunshine duration in December is 6.1h.

When is the lowest UV index in Grainola?

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

How high is the UV index in December in Grainola?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Grainola, OK

Average temperature in December - Grainola, OK
  • Average high temperature in December: 46.8°F

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (45°F).

  • Average low temperature in December: 31.6°F

The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).

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Average pressure in December
Grainola, OK

Average pressure in December - Grainola, 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 (29.87"Hg).

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Average wind speed in December
Grainola, OK

Average wind speed in December - Grainola, OK
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).

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Average humidity in December
Grainola, OK

Average humidity in December - Grainola, OK
  • Average humidity in December: 68%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (65%).

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Average rainfall in December
Grainola, OK

Average rainfall in December - Grainola, OK
  • Average rainfall in December: 0.24"

The wettest month (with the highest rainfall) is May (2.17").
The driest month (with the least rainfall) is December (0.24").

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Average rainfall days in December
Grainola, OK

Average rainfall days in December - Grainola, OK
  • Average rainfall days in December: 3.6 days

The month with the highest number of rainy days is May (12.3 days).
The months with the least rainy days are January and December (3.6 days).

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Average snowfall in December
Grainola, OK

Average snowfall in December - Grainola, OK
  • Average snowfall in December: 0.08"

The months with the highest snowfall are January, February and March (0.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Grainola, OK

Average snowfall days in December - Grainola, OK
  • Average snowfall days in December: 0.7 days

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Grainola, OK
  • 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 42min).

  • Average sunshine in December: 6h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The months with the least sunshine are January and December (Average sunshine: 6h and 6min).

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Average sunshine days in December
Grainola, OK

Average sunshine days in December - Grainola, OK
  • Average sunshine days in December: 25.4 days

The month with the most sunshine days is January (26.2 days).
The month with the least sunshine days is May (15.8 days).

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Average UV index in December
Grainola, OK

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

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

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Average cloud cover in December
Grainola, OK

Average cloud cover in December - Grainola, OK
  • Average cloud cover in December: 32

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in December
Grainola, OK

Average visibility in December - Grainola, 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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Grainola, Oklahoma, USA

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