December weather forecast
Eureka Mill, SC

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Weather in December

The first month of the winter, December, is also a fresh month in Eureka Mill, South Carolina, with temperature in the range of an average high of 54.5°F (12.5°C) and an average low of 39.7°F (4.3°C).

Temperature

During the shift to December, Eureka Mill records a mild decrease in average high-temperature, moving from a refreshing 60.4°F (15.8°C) in November to a fresh 54.5°F (12.5°C). Nighttime temperature in Eureka Mill, South Carolina, dips to a mean of 39.7°F (4.3°C) during December.

Humidity

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

Rainfall

In December, the rain falls for 10.9 days. Throughout December, 3.15" (80mm) of precipitation is accumulated. In Eureka Mill, during the entire year, the rain falls for 157.1 days and collects up to 31.06" (789mm) of precipitation.

Snowfall

January through March and December are months with snowfall. December is the month with the most snowfall. Snow falls for 0.3 days and accumulates 0.67" (17mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 54min of daylight.
On the first day of December, sunrise is at 7:14 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:24 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 5.5h of sunshine.

UV index

In December, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a daily UV index of 3 turns into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.

Frequently asked questions

What are the temperatures in December?

The high-temperature, in December, in Eureka Mill, records 54.5°F (12.5°C), while the low-temperature is 39.7°F (4.3°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 91.4°F (33°C).

What is the most humid month?

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

What is the average humidity in December?

In Eureka Mill, the average relative humidity in December is 76%.

How much does it rain in December?

In Eureka Mill, in December, during 10.9 rainfall days, 3.15" (80mm) of precipitation is typically accumulated.

When does it snow the most?

December is the month with the most snowfall. Snow falls for 0.3 days and accumulates 0.67" (17mm) of snow.

When does it start to snow?

December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.67" (17mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Eureka Mill have in December?

In December, the average day length is 9h and 52min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:24 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.5h of sunshine.

How many hours of sunshine does Eureka Mill have in December?

In Eureka Mill, the average sunshine duration in December is 5.5h.

What is the UV index reading in December?

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
Eureka Mill, SC

Average temperature in December - Eureka Mill, SC
  • Average high temperature in December: 54.5°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in December: 39.7°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).

Average pressure in December
Eureka Mill, SC

Average pressure in December - Eureka Mill, 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
Eureka Mill, SC

Average wind speed in December - Eureka Mill, SC
  • Average wind speed in December: 6.6mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in December
Eureka Mill, SC

Average humidity in December - Eureka Mill, 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 (70%).

Average rainfall in December
Eureka Mill, SC

Average rainfall in December - Eureka Mill, SC
  • Average rainfall in December: 3.15"

The wettest month (with the highest rainfall) is August (3.35").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in December
Eureka Mill, SC

Average rainfall days in December - Eureka Mill, SC
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is October (8.8 days).

Average snowfall in December
Eureka Mill, SC

Average snowfall in December - Eureka Mill, SC
  • Average snowfall in December: 0.67"

The month with the highest snowfall is December (0.67").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Eureka Mill, SC

Average snowfall days in December - Eureka Mill, SC
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is February (0.9 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
Eureka Mill, SC

Average daylight in December / Average sunshine in December - Eureka Mill, 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 3min

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 30min).

Average sunshine days in December
Eureka Mill, SC

Average sunshine days in December - Eureka Mill, SC
  • Average sunshine days in December: 18.7 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in December
Eureka Mill, SC

Average UV index in December - Eureka Mill, SC
  • Average UV index in December: 3

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

Average cloud cover in December
Eureka Mill, SC

Average cloud cover in December - Eureka Mill, SC
  • Average cloud cover in December: 42

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

Average visibility in December
Eureka Mill, SC

Average visibility in December - Eureka Mill, 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).

Eureka Mill, South Carolina, USA

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