December weather forecast
Philadelphia, MS

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Weather in December

December, the first month of the winter in Philadelphia, is still a refreshing month, with an average temperature fluctuating between 41.4°F (5.2°C) and 55.8°F (13.2°C).

Temperature

December brings a slight decrease in the average high-temperature, shifting from an enjoyable 62.8°F (17.1°C) in November to a mild 55.8°F (13.2°C). December nights observe an average temperature dip to a wintry 41.4°F (5.2°C).

Humidity

With an average relative humidity of 81%, December is the most humid month in Philadelphia, Mississippi.

Rainfall

In Philadelphia, in December, it is raining for 13.2 days, with typically 3.78" (96mm) of accumulated precipitation. Throughout the year, in Philadelphia, there are 176.8 rainfall days, and 40.59" (1031mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.6 snowfall days, it receives 0.24" (6mm) of snow. In Philadelphia, during the entire year, snow falls for 3.7 days and aggregates up to 1.06" (27mm) of snow.

Daylight

The month with the shortest days is December, with an average of 10h and 0min of daylight.
On the first day of December in Philadelphia, sunrise is at 6:41 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 5:00 pm CST.

Sunshine

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

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 3 suggests this advice:
Be vigilant - Suggestions to stave off sun damage are provided. To avoid the Sun's strongest rays, limit exposure around the mid-day period. During bright days, sunglasses that offer UVA and UVB defense are recommended. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Philadelphia in December?

December temperatures vary between a high-temperature of 55.8°F (13.2°C) and a low-temperature of 41.4°F (5.2°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in September is evaluated at 96.8°F (36°C).

What is the most humid month in Philadelphia?

The most humid month in Philadelphia, Mississippi, is December, with an average relative humidity of 81%.

What is the average humidity in December in Philadelphia?

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

How much does it rain in Philadelphia in December?

In December, the rain falls for 13.2 days. Throughout December, 3.78" (96mm) of precipitation is accumulated.

When does it start to snow in Philadelphia?

December is the first month it typically snows in Philadelphia. Throughout December, in the average 0.6 snowfall days, it receives 0.24" (6mm) of snow.

What is the month with the shortest days in Philadelphia?

The month with the shortest days is December, with an average of 10h and 0min of daylight.

What is the average length of the day in December in Philadelphia?

In Philadelphia, the average day length in December is 10h and 2min.

When are sunrise and sunset in December in Philadelphia?

In December, on the first day of the month, sunrise is at 6:41 am and sunset at 4:50 pm. On the last day of the month, in Philadelphia, Mississippi, sunrise is at 6:58 am and sunset at 5:00 pm CST.

What is the month with the least sunshine in Philadelphia?

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

How long on average sun shines in December in Philadelphia?

The average sunshine duration in December in Philadelphia, Mississippi, is 4.9h.

When is the lowest UV index in Philadelphia?

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

What is the UV index intensity in December in Philadelphia?

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 days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Philadelphia, MS

Average temperature in December - Philadelphia, MS
  • Average high temperature in December: 55.8°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (53.1°F).

  • Average low temperature in December: 41.4°F

The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (37°F).

Average pressure in December
Philadelphia, MS

Average pressure in December - Philadelphia, 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
Philadelphia, MS

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

The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Philadelphia, MS

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

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Philadelphia, MS

Average rainfall in December - Philadelphia, MS
  • Average rainfall in December: 3.78"

The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is November (2.48").

Average rainfall days in December
Philadelphia, MS

Average rainfall days in December - Philadelphia, MS
  • Average rainfall days in December: 13.2 days

The month with the highest number of rainy days is July (22.1 days).
The month with the least rainy days is November (9.6 days).

Average snowfall in December
Philadelphia, MS

Average snowfall in December - Philadelphia, MS
  • Average snowfall in December: 0.24"

The month with the highest snowfall is January (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Philadelphia, MS

Average snowfall days in December - Philadelphia, MS
  • Average snowfall days in December: 0.6 days

The month with the highest number of snowfall days is January (1.3 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
Philadelphia, MS

Average daylight in December / Average sunshine in December - Philadelphia, MS
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • 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
Philadelphia, MS

Average sunshine days in December - Philadelphia, MS
  • Average sunshine days in December: 15.4 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is July (7.5 days).

Average UV index in December
Philadelphia, MS

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

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

Average cloud cover in December
Philadelphia, MS

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

The months with the most cloud cover are February and December (Cloud cover 48).
The months with the least cloud cover are September and October (Cloud cover 29).

Average visibility in December
Philadelphia, MS

Average visibility in December - Philadelphia, 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).

Philadelphia, Mississippi, USA

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