December weather forecast and climate
Sims, NC

December, the first month of the winter, in Sims, is also a fresh month, with average temperature fluctuating between 39°F (3.9°C) and 53.2°F (11.8°C).

Temperature

In Sims, the average high-temperature marginally drops, from a mild 59.9°F (15.5°C) in November, to a fresh 53.2°F (11.8°C). In December, the average low-temperature is 39°F (3.9°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Sims, North Carolina, during 11 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Sims, during the entire year, the rain falls for 166.8 days and collects up to 33.62" (854mm) of precipitation.

Snowfall

January through March and December are months with snowfall in Sims, North Carolina. December is the first month it typically snows in Sims. Throughout December, in the average 0.4 snowfall days, it receives 0.31" (8mm) of snow. Throughout the year, in Sims, there are 4.6 snowfall days, and 2.8" (71mm) of snow is accumulated.

Daylight

With an average of 9.8h of daylight, December has the shortest days of the year in Sims, North Carolina.

Sunshine

With an average of 5.5h of sunshine, December has the least sunshine of the year in Sims.

UV index

In Sims, North Carolina, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Sims?

In December, in Sims, North Carolina, the average high-temperature is 53.2°F (11.8°C), and the average low-temperature is 39°F (3.9°C).

What is the average humidity in December in Sims?

The average relative humidity in December is 76%.

How many days does it rain in December in Sims?

In Sims, during December, the rain falls for 11 days and regularly aggregates up to 2.8" (71mm) of precipitation.

When does it start to snow in Sims?

December is the first month it typically snows in Sims. Throughout December, in the average 0.4 snowfall days, it receives 0.31" (8mm) of snow.

What is the month with the shortest days in Sims?

The month with the shortest days in Sims is December, with an average of 9.8h of daylight.

How many hours of daylight does Sims have in December?

The average length of the day in December in Sims is 9.8h.

What is the month with the least sunshine in Sims?

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

How many hours of sunshine does Sims have in December?

The average sunshine in December in Sims is 5.5h.

What is the UV index reading in December in Sims?

In December, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV rays.
Average temperature in December - Sims, NC
  • Average high temperature in December: 11.8°C

The warmest month (with the highest average high temperature) is July (31.2°C).
The month with the lowest average high temperature is January (9.3°C).

  • Average low temperature in December: 3.9°C

The month with the highest average low temperature is July (21.6°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).

Average pressure in December - Sims, NC
  • Average pressure in December: 1020.4mbar

The month with the highest atmospheric pressure is November (1020.7mbar).
The month with the lowest atmospheric pressure is June (1014.6mbar).

Average wind speed in December - Sims, NC
  • Average wind speed in December: 12.1km/h

The windiest month (with the highest average wind speed) is April (14.5km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).

Average humidity in December - Sims, NC
  • Average humidity in December: 76%

Months with the highest relative humidity are May and September (78%).
Months with the lowest relative humidity are January, February, March, April and November (74%).

Average rainfall in December - Sims, NC
  • Average rainfall in December: 71mm

The wettest month (with the highest rainfall) is August (96mm).
The driest month (with the least rainfall) is January (57mm).

Average rainfall days in December - Sims, NC
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in December - Sims, NC
  • Average snowfall in December: 8mm

The month with the highest snowfall is February (31mm).
Months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December - Sims, NC
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is February (1.9 days).
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 - Sims, NC
  • Average daylight in December: 9.8h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in December: 5.5h

Months with the most sunshine are June and July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 5.5h).

Average sunshine days in December - Sims, NC
  • Average sunshine days in December: 17.8 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is August (10.2 days).

Average UV index in December - Sims, NC
  • Average UV index in December: 3

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 - Sims, NC
  • Average cloud cover in December: 41

Months with the most cloud cover are February and March (Cloud cover 42).
Months with the least cloud cover are June and July (Cloud cover 31).

Average visibility in December - Sims, NC
  • Average visibility in December: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).