December weather forecast
Dewey, OK

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Weather in December

The first month of the winter, December, is also a frosty month in Dewey, Oklahoma, with temperature in the range of an average high of 47.3°F (8.5°C) and an average low of 32.2°F (0.1°C).

Temperature

December brings a decrease in the average high-temperature, falling from November's mild 57.7°F (14.3°C) to a frosty 47.3°F (8.5°C). December nights observe an average temperature dip to a cold 32.2°F (0.1°C).

Humidity

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

Rainfall

In Dewey, in December, it is raining for 6.1 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, in Dewey, there are 131.6 rainfall days, and 29.06" (738mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Dewey, Oklahoma. In Dewey, in December, snow falls for 1.5 days, with typically accumulated 0.51" (13mm) of snow. In Dewey, during the entire year, snow falls for 7.2 days and aggregates up to 3.11" (79mm) of snow.

Daylight

The month with the shortest days in Dewey is December, with an average of 9h and 42min of daylight.
On the first day of December, sunrise is at 7:18 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:17 pm CST.

Sunshine

The months with the least sunshine are January and December, with an average of 5.8h of sunshine.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Dewey. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

What is the temperature in December in Dewey?

The average high-temperature and low-temperature in Dewey, Oklahoma, during December are 47.3°F (8.5°C) and 32.2°F (0.1°C) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 86°F (30°C).

What is the average humidity in December in Dewey?

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

How many days does it rain in December in Dewey?

In Dewey, in December, it is raining for 6.1 days, with typically 1.1" (28mm) of accumulated precipitation.

How much does it snow in Dewey in December?

In December, in Dewey, Oklahoma, it is snowing for 1.5 days. Throughout December, 0.51" (13mm) of snow is accumulated.

What is the month with the shortest days in Dewey?

December has the shortest days of the year, with an average of 9h and 42min of daylight.

How many hours of daylight does Dewey have in December?

The average day length in December in Dewey is 9h and 41min.

What time are sunrise and sunset in December in Dewey?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:17 pm CST.

What is the month with the least sunshine in Dewey?

January and December, with an average of 5.8h of sunshine, are months with the least sunshine in Dewey.

How long on average sun shines in December in Dewey?

The average sunshine duration in December in Dewey is 5.8h.

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

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

How high is the UV index in December in Dewey?

The average daily maximum UV index in December in Dewey, Oklahoma, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe 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
Dewey, OK

Average temperature in December - Dewey, OK
  • Average high temperature in December: 47.3°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in December: 32.2°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).

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Average pressure in December
Dewey, OK

Average pressure in December - Dewey, 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
Dewey, OK

Average wind speed in December - Dewey, OK
  • Average wind speed in December: 9.2mph

The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in December
Dewey, OK

Average humidity in December - Dewey, 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, October and November (68%).

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Average rainfall in December
Dewey, OK

Average rainfall in December - Dewey, OK
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is May (5.08").
The driest month (with the least rainfall) is November (1.02").

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Average rainfall days in December
Dewey, OK

Average rainfall days in December - Dewey, OK
  • Average rainfall days in December: 6.1 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in December
Dewey, OK

Average snowfall in December - Dewey, OK
  • Average snowfall in December: 0.51"

The month with the highest snowfall is February (1.34").
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
Dewey, OK

Average snowfall days in December - Dewey, OK
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is February (2.4 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
Dewey, OK

Average daylight in December / Average sunshine in December - Dewey, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).

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Average sunshine days in December
Dewey, OK

Average sunshine days in December - Dewey, OK
  • Average sunshine days in December: 22.2 days

The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is May (13.3 days).

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Average UV index in December
Dewey, OK

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

The months with the highest UV index are June and July (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
Dewey, OK

Average cloud cover in December - Dewey, OK
  • Average cloud cover in December: 35

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
Dewey, OK

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

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