December weather forecast
Scotland, SD

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Weather in December

The first month of the winter, December, is also a subzero cold month in Scotland, South Dakota, with an average temperature ranging between min 17.1°F (-8.3°C) and max 29.5°F (-1.4°C).

Temperature

Witnessing a clear drop in December, the average high-temperature declines from November's chilly 45.7°F (7.6°C) to a subzero cold 29.5°F (-1.4°C). An average minimum temperature of 17.1°F (-8.3°C) marks the month of December.

Humidity

In Scotland, the average relative humidity in December is 82%.

Rainfall

In Scotland, during December, the rain falls for 2.9 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, there are 106.8 rainfall days, and 19.29" (490mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 7.5 days and accumulates 2.56" (65mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 7:43 am and sunset at 4:56 pm. On the last day of December, sunrise is at 8:02 am and sunset at 5:05 pm CST.

Sunshine

The average sunshine in December is 4.7h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 2 in December leads to these recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

During December, Scotland experiences an average high-temperature of 29.5°F (-1.4°C) and a low-temperature of 17.1°F (-8.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 89.6°F (32°C).

What is the average humidity in December?

In Scotland, South Dakota, the average relative humidity in December is 82%.

How much does it rain in December?

In December, the rain falls for 2.9 days. Throughout December, 0.98" (25mm) of precipitation is accumulated.

When does it snow the most in Scotland?

December is the month with the most snowfall. Snow falls for 7.5 days and accumulates 2.56" (65mm) of snow.

How much does it snow in December?

In Scotland, during December, snow falls for 7.5 days and regularly aggregates up to 2.56" (65mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 6min of daylight.

What is the average length of the day in December?

In Scotland, the average day length in December is 9h and 3min.

When are sunrise and sunset in December in Scotland?

In December, on the first day of the month, sunrise is at 7:43 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:05 pm CST.

How many hours of sunshine does Scotland have in December?

In December, the average sunshine duration is 4.7h.

When is the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk 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
Scotland, SD

Average temperature in December - Scotland, SD
  • Average high temperature in December: 29.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in December: 17.1°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

Average pressure in December
Scotland, SD

Average pressure in December - Scotland, SD
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in December
Scotland, SD

Average wind speed in December - Scotland, SD
  • Average wind speed in December: 10.4mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

Average humidity in December
Scotland, SD

Average humidity in December - Scotland, SD
  • Average humidity in December: 82%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (63%).

Average rainfall in December
Scotland, SD

Average rainfall in December - Scotland, SD
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in December
Scotland, SD

Average rainfall days in December - Scotland, SD
  • Average rainfall days in December: 2.9 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.5 days).

Average snowfall in December
Scotland, SD

Average snowfall in December - Scotland, SD
  • Average snowfall in December: 2.56"

The month with the highest snowfall is December (2.56").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Scotland, SD

Average snowfall days in December - Scotland, SD
  • Average snowfall days in December: 7.5 days

The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Scotland, SD

Average daylight in December / Average sunshine in December - Scotland, SD
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in December
Scotland, SD

Average sunshine days in December - Scotland, SD
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is June (11.8 days).

Average UV index in December
Scotland, SD

Average UV index in December - Scotland, SD
  • Average UV index in December: 2

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

Average cloud cover in December
Scotland, SD

Average cloud cover in December - Scotland, SD
  • Average cloud cover in December: 48

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 23).

Average visibility in December
Scotland, SD

Average visibility in December - Scotland, SD
  • 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).

Scotland, South Dakota, USA

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