December weather forecast
Okmulgee, OK

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Weather in December

In December, Okmulgee, Oklahoma, is immersed in the depth of winter with the coldest temperatures of the year. The shortened daylight hours contrast markedly with the lengthened nights, and Okmulgee sees the most limited sunshine in a day. The increase in snowfall, coupled with a cool average maximum temperature of 49.3°F (9.6°C) and a substantial snowfall of 0.59" (15mm), portrays the city's icy winters. As December signs off with its quintessential winter chill, the process of weather transition recommences with the impending new year.

Temperature

The arrival of December corresponds with a shift in temperature, down from a mild 59.7°F (15.4°C) in November to a chilly 49.3°F (9.6°C). During the nights in December, Okmulgee observes an average low-temperature of 34.9°F (1.6°C).

Humidity

In Okmulgee, Oklahoma, the average relative humidity in December is 70%.

Rainfall

In Okmulgee, in December, it is raining for 7.6 days, with typically 1.61" (41mm) of accumulated precipitation. In Okmulgee, during the entire year, the rain falls for 136.7 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In December, in Okmulgee, it is snowing for 1.4 days. Throughout December, 0.59" (15mm) of snow is accumulated. In Okmulgee, during the entire year, snow falls for 6.1 days and aggregates up to 3.7" (94mm) of snow.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year in Okmulgee.
On the first day of the month, sunrise is at 7:15 am and sunset at 5:10 pm. On the last day of December, sunrise is at 7:33 am and sunset at 5:21 pm CST.

Sunshine

With an average of 5.6h of sunshine, December has the least sunshine of the year.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 2 during December leads to these instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

What is the usual temperature for Okmulgee in December?

In Okmulgee, in December, the average high-temperature is 49.3°F (9.6°C), and the average low-temperature is 34.9°F (1.6°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 91.4°F (33°C).

What is the average humidity in December in Okmulgee?

In Okmulgee, the average relative humidity in December is 70%.

How much does it rain in Okmulgee in December?

In Okmulgee, Oklahoma, in December, during 7.6 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

How much does it snow in Okmulgee in December?

In Okmulgee, Oklahoma, in December, snow falls for 1.4 days, with typically accumulated 0.59" (15mm) of snow.

What is the month with the shortest days in Okmulgee?

December has the shortest days of the year, with an average of 9h and 48min of daylight.

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

The average day length in December in Okmulgee is 9h and 48min.

When are sunrise and sunset in December in Okmulgee?

On the first day of December, sunrise is at 7:15 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:21 pm CST.

What is the month with the least sunshine in Okmulgee?

With an average of 5.6h of sunshine, December has the least sunshine of the year in Okmulgee.

How long on average sun shines in December in Okmulgee?

The average sunshine duration in December is 5.6h.

When is the lowest UV index in Okmulgee?

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

What is the UV index intensity in December in Okmulgee?

In December, the average daily maximum UV index in Okmulgee is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from 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
Okmulgee, OK

Average temperature in December - Okmulgee, OK
  • Average high temperature in December: 49.3°F

The warmest month (with the highest average high temperature) is August (91.6°F).
The month with the lowest average high temperature is January (47.7°F).

  • Average low temperature in December: 34.9°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 (31.6°F).

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Average pressure in December
Okmulgee, OK

Average pressure in December - Okmulgee, 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 (29.9"Hg).

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Average wind speed in December
Okmulgee, OK

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

The windiest month (with the highest average wind speed) is March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in December
Okmulgee, OK

Average humidity in December - Okmulgee, OK
  • Average humidity in December: 70%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (66%).

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Average rainfall in December
Okmulgee, OK

Average rainfall in December - Okmulgee, OK
  • Average rainfall in December: 1.61"

The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is February (1.46").

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Average rainfall days in December
Okmulgee, OK

Average rainfall days in December - Okmulgee, OK
  • Average rainfall days in December: 7.6 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (6.4 days).

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Average snowfall in December
Okmulgee, OK

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

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

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Average snowfall days in December
Okmulgee, OK

Average snowfall days in December - Okmulgee, OK
  • Average snowfall days in December: 1.4 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
Okmulgee, OK

Average daylight in December / Average sunshine in December - Okmulgee, 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 48min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in December
Okmulgee, OK

Average sunshine days in December - Okmulgee, OK
  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is May (13.1 days).

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Average UV index in December
Okmulgee, OK

Average UV index in December - Okmulgee, 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
Okmulgee, OK

Average cloud cover in December - Okmulgee, OK
  • Average cloud cover in December: 37

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in December
Okmulgee, OK

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

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