December weather forecast
Picayune, MS

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Weather in December

December, the first month of the winter in Picayune, is also an enjoyable month, with an average temperature ranging between min 47.3°F (8.5°C) and max 62.1°F (16.7°C).

Temperature

Picayune in December undergoes a slight reduction in the average high-temperature, shifting from November's pleasant 68.7°F (20.4°C) to a comfortable 62.1°F (16.7°C). During the nights in December, Picayune experiences a consistent average temperature of 47.3°F (8.5°C).

Humidity

With an average relative humidity of 79%, December is the most humid month.

Rainfall

In Picayune, in December, it is raining for 14.1 days, with typically 3.58" (91mm) of accumulated precipitation. In Picayune, during the entire year, the rain falls for 178.7 days and collects up to 38.62" (981mm) of precipitation.

Snowfall

In Picayune, snow does not fall in February through August, October through December.

Daylight

December has the shortest days of the year, with an average of 10h and 12min of daylight.
On the first day of December, sunrise is at 6:38 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:08 pm CST.

Sunshine

February and December, with an average of 5h 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 of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 3 during December translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

An average high-temperature, in December, in Picayune, is 62.1°F (16.7°C) and the average low-temperature is 47.3°F (8.5°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 104°F (40°C).

What is the most humid month in Picayune?

The most humid month is December, with an average relative humidity of 79%.

What is the average humidity in December?

In December, the average relative humidity is 79%.

How many days does it rain in December?

In Picayune, during December, the rain falls for 14.1 days and regularly aggregates up to 3.58" (91mm) of precipitation.

When it does not snow?

In Picayune, snow does not fall in February through August, October through December.

Does it snow in Picayune in December?

In Picayune, Mississippi, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 12min of daylight.

What is the average length of the day in December?

In December, the average day length is 10h and 13min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:38 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:08 pm CST.

What is the month with the least sunshine?

February and December, with an average of 5h of sunshine, are months with the least sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 5h.

When is the lowest UV index?

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

How high is the UV index in December?

In Picayune, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
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
Picayune, MS

Average temperature in December - Picayune, MS
  • Average high temperature in December: 62.1°F

The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in December: 47.3°F

The months with the highest average low temperature are July and August (75°F).
The coldest month (with the lowest average low temperature) is January (43°F).

Average pressure in December
Picayune, MS

Average pressure in December - Picayune, MS
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

Average wind speed in December
Picayune, MS

Average wind speed in December - Picayune, MS
  • Average wind speed in December: 6.1mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

Average humidity in December
Picayune, MS

Average humidity in December - Picayune, MS
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Picayune, MS

Average rainfall in December - Picayune, MS
  • Average rainfall in December: 3.58"

The wettest month (with the highest rainfall) is August (5.47").
The driest month (with the least rainfall) is November (1.81").

Average rainfall days in December
Picayune, MS

Average rainfall days in December - Picayune, MS
  • Average rainfall days in December: 14.1 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in December
Picayune, MS

Average snowfall in December - Picayune, MS
  • Average snowfall in December: 0"

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

Average snowfall days in December
Picayune, MS

Average snowfall days in December - Picayune, MS
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, October and November (0 days).

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

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

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

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).

Average sunshine days in December
Picayune, MS

Average sunshine days in December - Picayune, MS
  • Average sunshine days in December: 15.1 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is August (6.6 days).

Average UV index in December
Picayune, MS

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

The months with the highest UV index are May, 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
Picayune, MS

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

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 27).

Average visibility in December
Picayune, MS

Average visibility in December - Picayune, MS
  • Average visibility in December: 5mi

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

Picayune, Mississippi, USA

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