December weather forecast
Alva, OK

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Weather in December

December sees the return of winter in Alva, Oklahoma, USA, with the temperature rapidly declining from that of November. Snowfall and reduced daylight hours dominate the city's weather patterns, providing a white blanket and a magical winter aura. Precipitation occurs mainly in the form of snow, giving December its characteristically white, frosty outlook. The temperature in December drops to 47.1°F (8.4°C) at its highest and snowfall measures at an icy 0.71" (18mm). As December wanes off and a new year begins, January brings with it a continuance of the chilling winter.

Temperature

Alva's December weather shows a moderate shift in high-temperatures, falling from November's mild 58.1°F (14.5°C) to a frosty 47.1°F (8.4°C). The average temperature during December nights in Alva is registered at a subzero cold 31.3°F (-0.4°C).

Humidity

In December, the average relative humidity in Alva is 63%.

Rainfall

The months with the least rainfall in Alva are January, February, November and December Rain falls for 4.6 days and accumulates 0.63" (16mm) of rain.

Snowfall

Months with snowfall are January through April, October through December. In Alva, in December, during 1.8 snowfall days, 0.71" (18mm) of snow is typically accumulated. Throughout the year, there are 10.8 snowfall days, and 5.16" (131mm) of snow is accumulated.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year in Alva.
On the first day of the month, sunrise is at 7:29 am and sunset at 5:18 pm. On the last day of December, in Alva, sunrise is at 7:47 am and sunset at 5:28 pm CST.

Sunshine

December has the least sunshine of the year in Alva, with an average of 6.4h of sunshine.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Alva. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 2 in December transforms into this advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

What is the average December temperature in Alva?

December temperatures vary between a high-temperature of 47.1°F (8.4°C) and a low-temperature of 31.3°F (-0.4°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in September is estimated at 87.8°F (31°C).

What is the average humidity in December in Alva?

The average relative humidity in December in Alva, Oklahoma, is 63%.

What is the driest month in Alva?

January, February, November and December are months with the least rain in Alva when the rain falls for 4.6 days and typically aggregates up to 0.63" (16mm) of rain.

How much does it rain in Alva in December?

In December, the rain falls for 4.6 days. Throughout December, 0.63" (16mm) of precipitation is accumulated.

How many days does it snow in December in Alva?

In Alva, Oklahoma, in December, during 1.8 snowfall days, 0.71" (18mm) of snow is typically accumulated.

What is the month with the shortest days in Alva?

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

How many hours of daylight does Alva have in December?

The average day length in December in Alva, Oklahoma, is 9h and 41min.

What time are sunrise and sunset in December in Alva?

In December, on the first day of the month, sunrise is at 7:29 am and sunset at 5:18 pm. On the last day of the month, in Alva, Oklahoma, sunrise is at 7:47 am and sunset at 5:28 pm CST.

What is the month with the least sunshine in Alva?

With an average of 6.4h of sunshine, December has the least sunshine of the year in Alva, Oklahoma.

How long on average sun shines in December in Alva?

The average sunshine duration in December is 6.4h.

When is the lowest UV index in Alva?

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

What is the UV index reading in December in Alva?

The average daily maximum UV index in December in Alva is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Alva, OK

Average temperature in December - Alva, OK
  • Average high temperature in December: 47.1°F

The warmest month (with the highest average high temperature) is July (95.4°F).
The month with the lowest average high temperature is January (46.6°F).

  • Average low temperature in December: 31.3°F

The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in December
Alva, OK

Average pressure in December - Alva, 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 (29.85"Hg).

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Average wind speed in December
Alva, OK

Average wind speed in December - Alva, OK
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is April (12mph).
The calmest month (with the lowest average wind speed) is August (9mph).

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Average humidity in December
Alva, OK

Average humidity in December - Alva, OK
  • Average humidity in December: 63%

The month with the highest relative humidity is May (65%).
The month with the lowest relative humidity is July (53%).

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Average rainfall in December
Alva, OK

Average rainfall in December - Alva, OK
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is May (3.43").
The driest months (with the least rainfall) are January, February, November and December (0.63").

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Average rainfall days in December
Alva, OK

Average rainfall days in December - Alva, OK
  • Average rainfall days in December: 4.6 days

The month with the highest number of rainy days is May (12.9 days).
The month with the least rainy days is January (3.7 days).

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Average snowfall in December
Alva, OK

Average snowfall in December - Alva, OK
  • Average snowfall in December: 0.71"

The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Alva, OK

Average snowfall days in December - Alva, OK
  • Average snowfall days in December: 1.8 days

The month with the highest number of snowfall days is February (3.3 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
Alva, OK

Average daylight in December / Average sunshine in December - Alva, 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: 6h and 2min

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 24min).

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Average sunshine days in December
Alva, OK

Average sunshine days in December - Alva, OK
  • Average sunshine days in December: 24.4 days

The month with the most sunshine days is January (25.2 days).
The month with the least sunshine days is September (15.5 days).

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Average UV index in December
Alva, OK

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

The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in December
Alva, OK

Average cloud cover in December - Alva, OK
  • Average cloud cover in December: 26

The months with the most cloud cover are March and April (Cloud cover 32).
The month with the least cloud cover is June (Cloud cover 17).

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Average visibility in December
Alva, OK

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

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