December weather forecastCalumet, OK

December

Weather in December

December, the first month of the winter in Calumet, is still a chilly month, with an average temperature fluctuating between 32.4°F (0.2°C) and 49.1°F (9.5°C).

Temperature

December involves a decrease in temperature, down from a moderate 59°F (15°C) in November to a chilly 49.1°F (9.5°C). During the December nights, an average temperature of 32.4°F (0.2°C) is observed.

Humidity

In Calumet, the average relative humidity in December is 67%.

Rainfall

The month with the least rainfall is December, when the rain falls for 4.5 days and typically collects 0.59" (15mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Calumet, in December, during 1.5 snowfall days, 0.55" (14mm) of snow is typically accumulated. In Calumet, during the entire year, snow falls for 7.7 days and aggregates up to 2.76" (70mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 7:24 am and sunset at 5:19 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:29 pm CST.

Sunshine

With an average of 6.1h 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 hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 2 during December translates into the following guidance:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature during December are 49.1°F (9.5°C) and 32.4°F (0.2°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 89.6°F (32°C).

In Calumet, the average relative humidity in December is 67%.

The month with the least rainfall in Calumet is December, when the rain falls for 4.5 days and typically collects 0.59" (15mm) of precipitation.

In December, the rain falls for 4.5 days. Throughout December, 0.59" (15mm) of precipitation is accumulated.

In Calumet, during December, snow falls for 1.5 days and regularly aggregates up to 0.55" (14mm) of snow.

The month with the shortest days is December, with an average of 9h and 48min of daylight.

In Calumet, the average day length in December is 9h and 48min.

On the first day of December, sunrise is at 7:24 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:29 pm CST.

With an average of 6.1h of sunshine, December has the least sunshine of the year.

The average sunshine duration in December in Calumet is 6.1h.

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

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Calumet, OK

  • Average high temperature in December: 49.1°F

The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is January (48.6°F).

  • Average low temperature in December: 32.4°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure in December
Calumet, 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 (29.87"Hg).

Average wind speed in December
Calumet, OK

  • Average wind speed in December: 10.7mph

The windiest month (with the highest average wind speed) is April (12.6mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).

Average humidity in December
Calumet, OK

  • Average humidity in December: 67%

The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (57%).

Average rainfall in December
Calumet, OK

  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is December (0.59").

Average rainfall days in December
Calumet, OK

  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is January (4.1 days).

Average snowfall in December
Calumet, OK

  • Average snowfall in December: 0.55"

The months with the highest snowfall are January and February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Calumet, OK

  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

  • Average daylight in December: 9h and 48min

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: 6h and 6min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

Average sunshine days in December
Calumet, OK

  • Average sunshine days in December: 24.5 days

The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is September (15.7 days).

Average UV index in December
Calumet, 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).

Average cloud cover in December
Calumet, OK

  • Average cloud cover in December: 31

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in December
Calumet, 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).