December weather forecast
Sperry, OK

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Weather in December

The first month of the winter, December, is still a chilly month in Sperry, Oklahoma, with an average temperature fluctuating between 34.2°F (1.2°C) and 47.8°F (8.8°C).

Temperature

In December, the meteorological conditions alter, with the average high-temperature shifting from a moderate 58.5°F (14.7°C) in November to a chilly 47.8°F (8.8°C). Sperry experiences a nighttime temperature average of 34.2°F (1.2°C) during December.

Humidity

The average relative humidity in December is 69%.

Rainfall

In Sperry, during December, the rain falls for 6.4 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, there are 130.4 rainfall days, and 28.86" (733mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Sperry, Oklahoma, are January through March, November and December. In Sperry, during December, snow falls for 0.8 days and regularly aggregates up to 0.31" (8mm) of snow. Throughout the year, in Sperry, there are 5.2 snowfall days, and 3.15" (80mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 42min of daylight.
On the first day of December in Sperry, sunrise is at 7:17 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:19 pm CST.

Sunshine

December has the least sunshine of the year in Sperry, with an average of 5.6h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The UV index of 2 during December leads to these advisories:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The solar radiation around mid-day is intense; avoid the Sun and stay safe. 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 December temperatures in Sperry?

The average high-temperature, in December, in Sperry, is 47.8°F (8.8°C), while the average low-temperature is 34.2°F (1.2°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 89.6°F (32°C).

What is the average humidity in December in Sperry?

In December, the average relative humidity in Sperry is 69%.

How much does it rain in Sperry in December?

In Sperry, Oklahoma, in December, during 6.4 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

How much does it snow in Sperry in December?

In Sperry, Oklahoma, in December, snow falls for 0.8 days, with typically accumulated 0.31" (8mm) of snow.

What is the month with the shortest days in Sperry?

With an average of 9h and 42min of daylight, December has the shortest days of the year in Sperry, Oklahoma.

How many hours of daylight does Sperry have in December?

The average day length in December in Sperry is 9h and 44min.

What time are sunrise and sunset in December in Sperry?

In December, on the first day of the month, sunrise is at 7:17 am and sunset at 5:09 pm. On the last day of the month, in Sperry, Oklahoma, sunrise is at 7:35 am and sunset at 5:19 pm CST.

What is the month with the least sunshine in Sperry?

December has the least sunshine of the year in Sperry, Oklahoma, with an average of 5.6h of sunshine.

How long on average sun shines in December in Sperry?

In Sperry, the average sunshine duration in December is 5.6h.

When is the lowest UV index in Sperry?

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

How high is the UV index in December in Sperry?

In Sperry, Oklahoma, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Sperry, OK

Average temperature in December - Sperry, OK
  • Average high temperature in December: 47.8°F

The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (46°F).

  • Average low temperature in December: 34.2°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in December
Sperry, OK

Average pressure in December - Sperry, 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
Sperry, OK

Average wind speed in December - Sperry, OK
  • Average wind speed in December: 9.1mph

The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).

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Average humidity in December
Sperry, OK

Average humidity in December - Sperry, OK
  • Average humidity in December: 69%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and October (67%).

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Average rainfall in December
Sperry, OK

Average rainfall in December - Sperry, OK
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is May (5.16").
The driest months (with the least rainfall) are January and November (1.14").

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Average rainfall days in December
Sperry, OK

Average rainfall days in December - Sperry, OK
  • Average rainfall days in December: 6.4 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in December
Sperry, OK

Average snowfall in December - Sperry, OK
  • Average snowfall in December: 0.31"

The month with the highest snowfall is February (1.42").
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
Sperry, OK

Average snowfall days in December - Sperry, OK
  • Average snowfall days in December: 0.8 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, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Sperry, OK
  • 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: 5h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in December
Sperry, OK

Average sunshine days in December - Sperry, OK
  • Average sunshine days in December: 22.6 days

The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is May (13.8 days).

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Average UV index in December
Sperry, OK

Average UV index in December - Sperry, 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
Sperry, OK

Average cloud cover in December - Sperry, OK
  • Average cloud cover in December: 36

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in December
Sperry, OK

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

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