December weather forecast
Dumas, MS

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Weather in December

The first month of the winter, December, is also a fresh month in Dumas, Mississippi, with temperature in the range of an average low of 37.8°F (3.2°C) and an average high of 51.1°F (10.6°C).

Temperature

The shift from November to December includes a small decrease in the average high-temperature, from a refreshing 59.5°F (15.3°C) to a fresh 51.1°F (10.6°C). In the month of December, an average of 37.8°F (3.2°C) marks the low-temperature.

Humidity

The months with the highest humidity in Dumas, Mississippi, are March and December, with an average relative humidity of 80%.

Rainfall

In December, the rain falls for 13 days. Throughout December, 3.31" (84mm) of precipitation is accumulated. In Dumas, during the entire year, the rain falls for 167.2 days and collects up to 38.98" (990mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In December, it is snowing for 0.4 days. Throughout December, 0.08" (2mm) of snow is accumulated. Throughout the year, there are 4.8 snowfall days, and 1.54" (39mm) of snow is accumulated.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year in Dumas.
On the first day of December, sunrise is at 6:44 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 4:55 pm CST.

Sunshine

In December, the average sunshine is 4.8h.

UV index

December is the month with the lowest UV index in Dumas, Mississippi, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature in Dumas?

The high-temperature during December is 51.1°F (10.6°C) and the low-temperature is 37.8°F (3.2°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 91.4°F (33°C).

What are the most humid months in Dumas?

The months with the highest humidity in Dumas, Mississippi, are March and December, with an average relative humidity of 80%.

What is the average humidity in December in Dumas?

The average relative humidity in December in Dumas, Mississippi, is 80%.

How many days does it rain in December in Dumas?

In Dumas, in December, it is raining for 13 days, with typically 3.31" (84mm) of accumulated precipitation.

How many days does it snow in December in Dumas?

In Dumas, Mississippi, in December, snow falls for 0.4 days, with typically accumulated 0.08" (2mm) of snow.

What is the month with the shortest days in Dumas?

December has the shortest days of the year, with an average of 9h and 54min of daylight.

How many hours of daylight does Dumas have in December?

The average day length in December is 9h and 53min.

When are sunrise and sunset in December in Dumas?

In December, on the first day of the month, sunrise is at 6:44 am and sunset at 4:44 pm. On the last day of the month, in Dumas, Mississippi, sunrise is at 7:02 am and sunset at 4:55 pm CST.

How many hours of sunshine does Dumas have in December?

The average sunshine duration in December is 4.8h.

When is the lowest UV index in Dumas?

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

What is the UV index reading in December in Dumas?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes 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
Dumas, MS

Average temperature in December - Dumas, MS
  • Average high temperature in December: 51.1°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (47.5°F).

  • Average low temperature in December: 37.8°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

Average pressure in December
Dumas, MS

Average pressure in December - Dumas, 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
Dumas, MS

Average wind speed in December - Dumas, MS
  • Average wind speed in December: 7.4mph

The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in December
Dumas, MS

Average humidity in December - Dumas, MS
  • Average humidity in December: 80%

The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Dumas, MS

Average rainfall in December - Dumas, MS
  • Average rainfall in December: 3.31"

The wettest month (with the highest rainfall) is February (4.8").
The driest month (with the least rainfall) is September (2.13").

Average rainfall days in December
Dumas, MS

Average rainfall days in December - Dumas, MS
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (10.3 days).

Average snowfall in December
Dumas, MS

Average snowfall in December - Dumas, MS
  • Average snowfall in December: 0.08"

The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Dumas, MS

Average snowfall days in December - Dumas, MS
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Dumas, MS
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Dumas, MS

Average sunshine days in December - Dumas, MS
  • Average sunshine days in December: 17 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (11.5 days).

Average UV index in December
Dumas, MS

Average UV index in December - Dumas, MS
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in December
Dumas, MS

Average cloud cover in December - Dumas, MS
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June, August and September (Cloud cover 29).

Average visibility in December
Dumas, MS

Average visibility in December - Dumas, MS
  • 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).

Dumas, Mississippi, USA

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