December weather forecast
Saw Mill, SC

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Weather in December

The first month of the winter, December, is still a refreshing month in Saw Mill, South Carolina, with an average temperature fluctuating between 59.4°F (15.2°C) and 45.5°F (7.5°C).

Temperature

As November shifts into December, a minor alteration in temperatures is observed, with average highs reducing from an enjoyable 65.3°F (18.5°C) to a still refreshing 59.4°F (15.2°C). Saw Mill temperatures generally rest at a low of 45.5°F (7.5°C) during the December nights.

Humidity

The months with the highest humidity are August and December, with an average relative humidity of 78%.

Rainfall

In Saw Mill, in December, it is raining for 10.6 days, with typically 4.69" (119mm) of accumulated precipitation. Throughout the year, in Saw Mill, South Carolina, there are 179.5 rainfall days, and 40.79" (1036mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January, February and December. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, in Saw Mill, there are 1 snowfall days, and 0.31" (8mm) of snow is accumulated.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year in Saw Mill.
On the first day of the month, sunrise is at 7:05 am and sunset at 5:12 pm. On the last day of December, in Saw Mill, sunrise is at 7:22 am and sunset at 5:23 pm EST.

Sunshine

December has the least sunshine of the year in Saw Mill, with an average of 5.7h of sunshine.

UV index

The months with the lowest UV index in Saw Mill are January and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily high UV index of 3 in December leads to these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature in Saw Mill?

Saw Mill in December has an average high-temperature of 59.4°F (15.2°C) and an average low-temperature of 45.5°F (7.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 93.2°F (34°C).

What is the most humid month in Saw Mill?

August and December, with an average relative humidity of 78%, are most humid months in Saw Mill, South Carolina.

What is the average humidity in December in Saw Mill?

The average relative humidity in December in Saw Mill, South Carolina, is 78%.

How many days does it rain in December in Saw Mill?

In Saw Mill, South Carolina, in December, it is raining for 10.6 days, with typically 4.69" (119mm) of accumulated precipitation.

When does it start to snow in Saw Mill?

December is the first month it typically snows in Saw Mill. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days in Saw Mill?

The month with the shortest days in Saw Mill, South Carolina, is December, with an average of 10h and 0min of daylight.

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

In December, the average day length in Saw Mill, South Carolina, is 10h and 1min.

When are sunrise and sunset in December in Saw Mill?

On the first day of December, sunrise is at 7:05 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:23 pm EST.

What is the month with the least sunshine in Saw Mill?

December has the least sunshine of the year in Saw Mill, South Carolina, with an average of 5.7h of sunshine.

How long on average sun shines in December in Saw Mill?

In Saw Mill, South Carolina, the average sunshine duration in December is 5.7h.

What are the months with the lowest UV index in Saw Mill?

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Saw Mill, South Carolina.

How high is the UV index in December in Saw Mill?

The average daily maximum UV index in December in Saw Mill, South Carolina, is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Saw Mill, SC

Average temperature in December - Saw Mill, SC
  • Average high temperature in December: 59.4°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (55.8°F).

  • Average low temperature in December: 45.5°F

The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).

Average pressure in December
Saw Mill, SC

Average pressure in December - Saw Mill, SC
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in December
Saw Mill, SC

Average wind speed in December - Saw Mill, SC
  • Average wind speed in December: 6.5mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in December
Saw Mill, SC

Average humidity in December - Saw Mill, SC
  • Average humidity in December: 78%

The months with the highest relative humidity are August and December (78%).
The months with the lowest relative humidity are January and March (74%).

Average rainfall in December
Saw Mill, SC

Average rainfall in December - Saw Mill, SC
  • Average rainfall in December: 4.69"

The wettest month (with the highest rainfall) is August (6.46").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in December
Saw Mill, SC

Average rainfall days in December - Saw Mill, SC
  • Average rainfall days in December: 10.6 days

The months with the highest number of rainy days are July and August (23.2 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in December
Saw Mill, SC

Average snowfall in December - Saw Mill, SC
  • Average snowfall in December: 0.04"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Saw Mill, SC

Average snowfall days in December - Saw Mill, SC
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.5 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
Saw Mill, SC

Average daylight in December / Average sunshine in December - Saw Mill, SC
  • 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: 5h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in December
Saw Mill, SC

Average sunshine days in December - Saw Mill, SC
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (5.5 days).

Average UV index in December
Saw Mill, SC

Average UV index in December - Saw Mill, SC
  • 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
Saw Mill, SC

Average cloud cover in December - Saw Mill, SC
  • Average cloud cover in December: 40

The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in December
Saw Mill, SC

Average visibility in December - Saw 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).

Saw Mill, South Carolina, USA

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