December weather forecast
Oma, MS

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Weather in December

The first month of the winter, December, is still a refreshing month in Oma, Mississippi, with an average temperature fluctuating between 43°F (6.1°C) and 58.6°F (14.8°C).

Temperature

In Oma, the average high-temperature in December slightly decreases from an enjoyable 65.5°F (18.6°C) in November to a mild 58.6°F (14.8°C). Oma records an average nighttime low-temperature of 43°F (6.1°C) throughout December.

Humidity

February and December, with an average relative humidity of 81%, are the most humid months.

Rainfall

In December, the rain falls for 13.5 days. Throughout December, 3.86" (98mm) of precipitation is accumulated. In Oma, during the entire year, the rain falls for 175.1 days and collects up to 38.9" (988mm) of precipitation.

Snowfall

Months with snowfall are January through March and December. The months with the most snowfall are January and December, with an average 0.31" (8mm) of accumulated snow.

Daylight

The month with the shortest days is December, with an average of 10h and 6min of daylight.
On the first day of December, sunrise is at 6:43 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 5:07 pm CST.

Sunshine

February and December, with an average of 4.9h of sunshine, are months with the least sunshine.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 3 transforms into these recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December in Oma?

In December, the average high-temperature and low-temperature are 58.6°F (14.8°C) and 43°F (6.1°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 102.2°F (39°C).

What are the most humid months in Oma?

The months with the highest humidity are February and December, with an average relative humidity of 81%.

What is the average humidity in December?

In Oma, the average relative humidity in December is 81%.

How many days does it rain in December?

In Oma, during December, the rain falls for 13.5 days and regularly aggregates up to 3.86" (98mm) of precipitation.

When does it snow the most?

The months with the most snowfall are January and December, with an average 0.31" (8mm) of accumulated snow.

When does it start to snow in Oma?

December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.31" (8mm) of snow.

What is the month with the shortest days?

With an average of 10h and 6min of daylight, December has the shortest days of the year.

How many hours of daylight does Oma have in December?

In Oma, the average day length in December is 10h and 7min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:43 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 5:07 pm CST.

What are the months with the least sunshine?

February and December, with an average of 4.9h of sunshine, are months with the least sunshine in Oma.

How many hours of sunshine does Oma have in December?

In Oma, Mississippi, the average sunshine duration in December is 4.9h.

What are the months with the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 3.

What is the UV index reading in December?

The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Oma, MS

Average temperature in December - Oma, MS
  • Average high temperature in December: 58.6°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in December: 43°F

The months with the highest average low temperature are July and August (72°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

Average pressure in December
Oma, MS

Average pressure in December - Oma, MS
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Oma, MS

Average wind speed in December - Oma, MS
  • Average wind speed in December: 7mph

The windiest months (with the highest average wind speed) are February and April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in December
Oma, MS

Average humidity in December - Oma, MS
  • Average humidity in December: 81%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Oma, MS

Average rainfall in December - Oma, MS
  • Average rainfall in December: 3.86"

The wettest month (with the highest rainfall) is August (4.25").
The driest month (with the least rainfall) is November (2.4").

Average rainfall days in December
Oma, MS

Average rainfall days in December - Oma, MS
  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is August (21.6 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in December
Oma, MS

Average snowfall in December - Oma, MS
  • Average snowfall in December: 0.31"

The months with the highest snowfall are January and December (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Oma, MS

Average snowfall days in December - Oma, MS
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Oma, MS

Average daylight in December / Average sunshine in December - Oma, MS
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

Average sunshine days in December
Oma, MS

Average sunshine days in December - Oma, MS
  • Average sunshine days in December: 14.9 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (8.1 days).

Average UV index in December
Oma, MS

Average UV index in December - Oma, MS
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in December
Oma, MS

Average cloud cover in December - Oma, MS
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in December
Oma, MS

Average visibility in December - Oma, MS
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).

Oma, Mississippi, USA

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