December weather forecast
Arch, OK

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Weather in December

The first month of the winter, December, is still a cool month in Arch, Oklahoma, with temperature in the range of an average low of 35.6°F (2°C) and an average high of 50.5°F (10.3°C).

Temperature

The commencement of December indicates a shift in the average high-temperature, receding from November's refreshing 60.6°F (15.9°C) to a cool 50.5°F (10.3°C). Arch records an average nighttime low of 35.6°F (2°C) in December.

Humidity

The average relative humidity in December is 73%.

Rainfall

In December, in Arch, Oklahoma, the rain falls for 8.5 days. Throughout December, 1.46" (37mm) of precipitation is accumulated. In Arch, during the entire year, the rain falls for 128.5 days and collects up to 24.25" (616mm) of precipitation.

Snowfall

Months with snowfall in Arch are January through April, November and December. In December, in Arch, it is snowing for 0.7 days. Throughout December, 0.63" (16mm) of snow is accumulated. Throughout the year, there are 5.6 snowfall days, and 2.28" (58mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of December in Arch, sunrise is at 7:12 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:22 pm CST.

Sunshine

With an average of 5.5h of sunshine, December has the least sunshine of the year in Arch.

UV index

The month with the lowest UV index in Arch is December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

What are December temperatures in Arch?

The high-temperature, in December, in Arch, records 50.5°F (10.3°C), while the low-temperature is 35.6°F (2°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in September is calculated to be 93.2°F (34°C).

What is the average humidity in December in Arch?

The average relative humidity in December is 73%.

How much does it rain in Arch in December?

In Arch, in December, it is raining for 8.5 days, with typically 1.46" (37mm) of accumulated precipitation.

How much does it snow in Arch in December?

In Arch, Oklahoma, in December, snow falls for 0.7 days, with typically accumulated 0.63" (16mm) of snow.

What is the month with the shortest days in Arch?

With an average of 9h and 54min of daylight, December has the shortest days of the year in Arch.

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

The average day length in December in Arch is 9h and 52min.

What time are sunrise and sunset in December in Arch?

In December, on the first day of the month, sunrise is at 7:12 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:22 pm CST.

What is the month with the least sunshine in Arch?

December has the least sunshine of the year in Arch, Oklahoma, with an average of 5.5h of sunshine.

How many hours of sunshine does Arch have in December?

In December, the average sunshine duration in Arch is 5.5h.

When is the lowest UV index in Arch?

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

How high is the UV index in December in Arch?

In Arch, Oklahoma, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Arch, OK

Average temperature in December - Arch, OK
  • Average high temperature in December: 50.5°F

The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in December: 35.6°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).

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Average pressure in December
Arch, OK

Average pressure in December - Arch, 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 (29.91"Hg).

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Average wind speed in December
Arch, OK

Average wind speed in December - Arch, OK
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in December
Arch, OK

Average humidity in December - Arch, OK
  • Average humidity in December: 73%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (67%).

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Average rainfall in December
Arch, OK

Average rainfall in December - Arch, OK
  • Average rainfall in December: 1.46"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is February (1.34").

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Average rainfall days in December
Arch, OK

Average rainfall days in December - Arch, OK
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is January (6.9 days).

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Average snowfall in December
Arch, OK

Average snowfall in December - Arch, OK
  • Average snowfall in December: 0.63"

The month with the highest snowfall is February (0.71").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Arch, OK

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

The month with the highest number of snowfall days is February (2.2 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
Arch, OK

Average daylight in December / Average sunshine in December - Arch, 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 54min).

  • Average sunshine in December: 5h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in December
Arch, OK

Average sunshine days in December - Arch, OK
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is January (22 days).
The month with the least sunshine days is July (14.4 days).

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Average UV index in December
Arch, OK

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

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

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Average cloud cover in December
Arch, OK

Average cloud cover in December - Arch, OK
  • Average cloud cover in December: 38

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in December
Arch, OK

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

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