December weather forecast
Mayo, SC

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Weather in December

December, the first month of the winter in Mayo, is also a fresh month, with temperature in the range of an average high of 52.3°F (11.3°C) and an average low of 37.6°F (3.1°C).

Temperature

Transitioning from November to December involves a subtle drop in average high-temperatures, descending from a moderate 59.9°F (15.5°C) to a fresh 52.3°F (11.3°C). Throughout the month of December, Mayo expects an average low of 37.6°F (3.1°C).

Humidity

December is the most humid month, with an average relative humidity of 76%.

Rainfall

The month with the most rainfall is December, when the rain falls for 9.9 days and typically aggregates up to 3.19" (81mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall in Mayo, South Carolina. The month with the most snowfall in Mayo is December, when snow falls for 0.6 days and typically aggregates up to 2.44" (62mm) of snow.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year in Mayo.
On the first day of the month, sunrise is at 7:17 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:35 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 in Mayo.

UV index

The months with the lowest UV index in Mayo are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Mayo in December?

In December, in Mayo, the average high-temperature is 52.3°F (11.3°C), and the average low-temperature is 37.6°F (3.1°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 89.6°F (32°C).

What is the most humid month in Mayo?

With an average relative humidity of 76%, December is the most humid month in Mayo, South Carolina.

What is the average humidity in December in Mayo?

The average relative humidity in December in Mayo is 76%.

What is the rainiest month in Mayo?

December is the month with the most rainfall in Mayo. Rain falls for 9.9 days and accumulates 3.19" (81mm) of precipitation.

How many days does it rain in December in Mayo?

In Mayo, South Carolina, in December, during 9.9 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

When does it snow the most in Mayo?

December is the month with the most snowfall. Snow falls for 0.6 days and accumulates 2.44" (62mm) of snow.

How many days does it snow in December in Mayo?

In Mayo, South Carolina, in December, snow falls for 0.6 days, with typically accumulated 2.44" (62mm) of snow.

What is the month with the shortest days in Mayo?

December has the shortest days of the year in Mayo, South Carolina, with an average of 9h and 48min of daylight.

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

In December, the average day length in Mayo, South Carolina, is 9h and 50min.

When is the sunrise / sunset in December in Mayo?

In December, on the first day of the month, sunrise is at 7:17 am and sunset at 5:15 pm. On the last day of the month, in Mayo, South Carolina, sunrise is at 7:35 am and sunset at 5:26 pm EST.

What is the month with the least sunshine in Mayo?

With an average of 5.4h of sunshine, December has the least sunshine of the year in Mayo, South Carolina.

How long on average sun shines in December in Mayo?

In Mayo, South Carolina, the average sunshine duration in December is 5.4h.

What are the months with the lowest UV index in Mayo?

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

How high is the UV index in December in Mayo?

In Mayo, South Carolina, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
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
Mayo, SC

Average temperature in December - Mayo, SC
  • Average high temperature in December: 52.3°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (48.4°F).

  • Average low temperature in December: 37.6°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

Average pressure in December
Mayo, SC

Average pressure in December - Mayo, 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
Mayo, SC

Average wind speed in December - Mayo, SC
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in December
Mayo, SC

Average humidity in December - Mayo, SC
  • Average humidity in December: 76%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (68%).

Average rainfall in December
Mayo, SC

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

The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.46").

Average rainfall days in December
Mayo, SC

Average rainfall days in December - Mayo, SC
  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in December
Mayo, SC

Average snowfall in December - Mayo, SC
  • Average snowfall in December: 2.44"

The month with the highest snowfall is December (2.44").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Mayo, SC

Average snowfall days in December - Mayo, SC
  • Average snowfall days in December: 0.6 days

The month with the highest number of snowfall days is February (1.5 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
Mayo, SC

Average daylight in December / Average sunshine in December - Mayo, SC
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 5h and 2min

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

Average sunshine days in December
Mayo, SC

Average sunshine days in December - Mayo, SC
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (12.8 days).

Average UV index in December
Mayo, SC

Average UV index in December - Mayo, SC
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Mayo, SC

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

The month with the most cloud cover is December (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 28).

Average visibility in December
Mayo, SC

Average visibility in December - Mayo, 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).

Mayo, South Carolina, USA

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