December weather forecast
Masham, OK

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Weather in December

The first month of the winter, December, is also a frosty month in Masham, Oklahoma, with temperature in the range of an average low of 33.1°F (0.6°C) and an average high of 48°F (8.9°C).

Temperature

The onset of December is marked by a decrease in temperature, transitioning from a refreshing 58.8°F (14.9°C) in November to a chilly 48°F (8.9°C). Masham's temperature in December lowers to a consistent average of 33.1°F (0.6°C) during the nights.

Humidity

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

Rainfall

December is the month with the least rainfall. Rain falls for 6.1 days and accumulates 0.91" (23mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In Masham, during December, snow falls for 1.2 days and regularly aggregates up to 0.28" (7mm) of snow. In Masham, during the entire year, snow falls for 6.3 days and aggregates up to 2.72" (69mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 42min of daylight.
On the first day of December, sunrise is at 7:21 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:22 pm CST.

Sunshine

December has the least sunshine of the year, with an average of 6h of sunshine.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.

Frequently asked questions

What is the temperature in December?

In Masham, 48°F (8.9°C) is the average high-temperature and 33.1°F (0.6°C) is the average low-temperature during December. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in September is appraised at 89.6°F (32°C).

What is the average humidity in December in Masham?

The average relative humidity in December is 67%.

What is the driest month?

The month with the least rainfall is December, when the rain falls for 6.1 days and typically collects 0.91" (23mm) of precipitation.

How much does it rain in December?

In Masham, in December, during 6.1 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

How much does it snow in December?

In Masham, in December, snow falls for 1.2 days, with typically accumulated 0.28" (7mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

The average day length in December is 9h and 43min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:21 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:22 pm CST.

What is the month with the least sunshine?

With an average of 6h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

In Masham, the average sunshine duration in December is 6h.

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

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

What is the UV index intensity in December?

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 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
Masham, OK

Average temperature in December - Masham, OK
  • Average high temperature in December: 48°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (46.4°F).

  • Average low temperature in December: 33.1°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in December
Masham, OK

Average pressure in December - Masham, 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 (29.88"Hg).

Average wind speed in December
Masham, OK

Average wind speed in December - Masham, OK
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).

Average humidity in December
Masham, OK

Average humidity in December - Masham, OK
  • Average humidity in December: 67%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are January, August and October (65%).

Average rainfall in December
Masham, OK

Average rainfall in December - Masham, OK
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is December (0.91").

Average rainfall days in December
Masham, OK

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

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (4.9 days).

Average snowfall in December
Masham, OK

Average snowfall in December - Masham, OK
  • Average snowfall in December: 0.28"

The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Masham, OK

Average snowfall days in December - Masham, OK
  • Average snowfall days in December: 1.2 days

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

Average daylight in December / Average sunshine in December - Masham, 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 0min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in December
Masham, OK

Average sunshine days in December - Masham, OK
  • Average sunshine days in December: 22.7 days

The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is May (13.5 days).

Average UV index in December
Masham, OK

Average UV index in December - Masham, 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
Masham, OK

Average cloud cover in December - Masham, OK
  • Average cloud cover in December: 33

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 20).

Average visibility in December
Masham, OK

Average visibility in December - Masham, 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).

Masham, Oklahoma, USA

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