December weather forecast
Altus, OK

Weather in December

The first month of the winter, December, is still a cool month in Altus, Oklahoma, with an average temperature fluctuating between 51.6°F (10.9°C) and 34.5°F (1.4°C).

Temperature

With an average high-temperature of 51.6°F (10.9°C) and an average low-temperature of 34.5°F (1.4°C), December is the coldest month.

Humidity

May and December, with an average relative humidity of 60%, are the most humid months.

Rainfall

In Altus, in December, during 4.9 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. In Altus, during the entire year, the rain falls for 104.5 days and collects up to 20.59" (523mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Altus, Oklahoma, during 1.1 snowfall days, 0.59" (15mm) of snow is typically accumulated. Throughout the year, there are 5.8 snowfall days, and 2.83" (72mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 53min of daylight.
On the first day of December, sunrise is at 7:26 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:36 pm CST.

Sunshine

With an average of 6.5h of sunshine, December has the least sunshine of the year.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Altus?

With an average high-temperature of 51.6°F (10.9°C) and an average low-temperature of 34.5°F (1.4°C), December is the coldest month in Altus.

What is the most humid month in Altus?

May and December, with an average relative humidity of 60%, are most humid months.

What is the average humidity in December in Altus?

In Altus, Oklahoma, the average relative humidity in December is 60%.

How much does it rain in Altus in December?

In December, in Altus, Oklahoma, the rain falls for 4.9 days. Throughout December, 0.94" (24mm) of precipitation is accumulated.

How much does it snow in Altus in December?

In Altus, Oklahoma, during December, snow falls for 1.1 days and regularly aggregates up to 0.59" (15mm) of snow.

What is the month with the shortest days in Altus?

December has the shortest days of the year in Altus, with an average of 9h and 53min of daylight.

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

The average day length in December in Altus, Oklahoma, is 9h and 53min.

When are sunrise and sunset in December in Altus?

On the first day of December in Altus, Oklahoma, sunrise is at 7:26 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:36 pm CST.

What is the month with the least sunshine in Altus?

The month with the least sunshine is December, with an average of 6.5h of sunshine.

How long on average sun shines in December in Altus?

In December, the average sunshine duration in Altus is 6.5h.

What is the month with the lowest UV index in Altus?

December is the month with the lowest UV index, with an average maximum UV index of 2.

What is the UV index intensity in December in Altus?

In Altus, Oklahoma, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Altus, OK

Average temperature in December - Altus, OK
  • Average high temperature in December: 51.6°F

The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (51.6°F).

  • Average low temperature in December: 34.5°F

The month with the highest average low temperature is July (76.3°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in December
Altus, OK

Average pressure in December - Altus, OK
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in December
Altus, OK

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

The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).

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Average humidity in December
Altus, OK

Average humidity in December - Altus, OK
  • Average humidity in December: 60%

The months with the highest relative humidity are May and December (60%).
The month with the lowest relative humidity is August (49%).

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Average rainfall in December
Altus, OK

Average rainfall in December - Altus, OK
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is May (3.35").
The driest months (with the least rainfall) are February and November (0.75").

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Average rainfall days in December
Altus, OK

Average rainfall days in December - Altus, OK
  • Average rainfall days in December: 4.9 days

The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is January (3.8 days).

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Average snowfall in December
Altus, OK

Average snowfall in December - Altus, OK
  • Average snowfall in December: 0.59"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Altus, OK

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

The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Altus, OK
  • Average daylight in December: 9h and 53min

The month with the longest days is June (Average daylight: 14h and 26min).
The month with the shortest days is December (Average daylight: 9h and 53min).

  • Average sunshine in December: 6h and 30min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in December
Altus, OK

Average sunshine days in December - Altus, OK
  • Average sunshine days in December: 24.7 days

The month with the most sunshine days is January (25.9 days).
The month with the least sunshine days is August (15.1 days).

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Average UV index in December
Altus, OK

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

The months with the highest UV index are May, 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
Altus, OK

Average cloud cover in December - Altus, OK
  • Average cloud cover in December: 25

The month with the most cloud cover is March (Cloud cover 29).
The months with the least cloud cover are June and August (Cloud cover 17).

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Average visibility in December
Altus, OK

Average visibility in December - Altus, 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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