December weather forecast
Prosperity, SC

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Weather in December

The first month of the winter, December, is also a fresh month in Prosperity, South Carolina, with an average temperature ranging between min 40.5°F (4.7°C) and max 55°F (12.8°C).

Temperature

With the onset of December, the average high-temperature subtly recedes from November's comfortable 61.7°F (16.5°C) to a fresh 55°F (12.8°C). Prosperity observes an average low-temperature of 40.5°F (4.7°C) during December.

Humidity

With an average relative humidity of 77%, December is the most humid month.

Rainfall

In Prosperity, during December, the rain falls for 11.1 days and regularly aggregates up to 3.19" (81mm) of precipitation. In Prosperity, during the entire year, the rain falls for 149.3 days and collects up to 29.84" (758mm) of precipitation.

Snowfall

April through December are months without snowfall.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of December, sunrise is at 7:14 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:26 pm EST.

Sunshine

With an average of 5.4h of sunshine, December has the least sunshine of the year.

UV index

In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 3 in December transforms into the following instructions:
Undertake precautions - Guarding against sun damage is counselled. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

The high-temperature during December is 55°F (12.8°C) and the low-temperature is 40.5°F (4.7°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 93.2°F (34°C).

What is the most humid month?

With an average relative humidity of 77%, December is the most humid month.

What is the average humidity in December?

The average relative humidity in December is 77%.

How many days does it rain in December?

In Prosperity, in December, it is raining for 11.1 days, with typically 3.19" (81mm) of accumulated precipitation.

When it does not snow?

In Prosperity, snow does not fall in April through December.

Does it snow in December?

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

What is the month with the shortest days in Prosperity?

The month with the shortest days is December, with an average of 9h and 54min of daylight.

How many hours of daylight does Prosperity have in December?

In December, the average day length is 9h and 55min.

When are sunrise and sunset in December in Prosperity?

On the first day of December, sunrise is at 7:14 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:26 pm EST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 5.4h of sunshine.

How many hours of sunshine does Prosperity have in December?

In Prosperity, the average sunshine duration in December is 5.4h.

What is the UV index reading in December?

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Prosperity, SC

Average temperature in December - Prosperity, SC
  • Average high temperature in December: 55°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 (51.8°F).

  • Average low temperature in December: 40.5°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

Average pressure in December
Prosperity, SC

Average pressure in December - Prosperity, SC
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Prosperity, SC

Average wind speed in December - Prosperity, SC
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in December
Prosperity, SC

Average humidity in December - Prosperity, SC
  • Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

Average rainfall in December
Prosperity, SC

Average rainfall in December - Prosperity, SC
  • Average rainfall in December: 3.19"

The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in December
Prosperity, SC

Average rainfall days in December - Prosperity, SC
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is July (17.8 days).
The months with the least rainy days are October and November (8.3 days).

Average snowfall in December
Prosperity, SC

Average snowfall in December - Prosperity, SC
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Prosperity, SC

Average snowfall days in December - Prosperity, SC
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Prosperity, SC

Average daylight in December / Average sunshine in December - Prosperity, SC
  • 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: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in December
Prosperity, SC

Average sunshine days in December - Prosperity, SC
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is July (11 days).

Average UV index in December
Prosperity, SC

Average UV index in December - Prosperity, SC
  • Average UV index in December: 3

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

Average cloud cover in December
Prosperity, SC

Average cloud cover in December - Prosperity, SC
  • Average cloud cover in December: 42

The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are June and October (Cloud cover 29).

Average visibility in December
Prosperity, SC

Average visibility in December - Prosperity, SC
  • 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).

Prosperity, South Carolina, USA

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