December weather forecast
Winfred, SD

Share

Weather in December

The first month of the winter, December, is also a subzero cold month in Winfred, South Dakota, with an average temperature fluctuating between 25.7°F (-3.5°C) and 14.2°F (-9.9°C).

Temperature

With the transition into December, Winfred experiences a significant decrease in average high-temperatures, moving down from a wintry 41.9°F (5.5°C) in November to a freezing cold 25.7°F (-3.5°C). Throughout the month of December, Winfred witnesses an average temperature of 14.2°F (-9.9°C).

Humidity

In Winfred, the average relative humidity in December is 86%.

Rainfall

In Winfred, in December, during 3.3 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 111.2 rainfall days, and 21.14" (537mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Winfred, during December, snow falls for 10.3 days and regularly aggregates up to 4.21" (107mm) of snow. In Winfred, during the entire year, snow falls for 49.4 days and aggregates up to 20.04" (509mm) of snow.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:44 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:01 pm CST.

Sunshine

The average sunshine in December is 4.1h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 1 during December leads to these instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The high-temperature during December is 25.7°F (-3.5°C) and the low-temperature is 14.2°F (-9.9°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 84.2°F (29°C).

What is the average humidity in December in Winfred?

In Winfred, the average relative humidity in December is 86%.

How much does it rain in December?

In Winfred, in December, during 3.3 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

How many days does it snow in December?

In December, in Winfred, it is snowing for 10.3 days. Throughout December, 4.21" (107mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 0min of daylight.

How many hours of daylight does Winfred have in December?

The average day length in December is 8h and 58min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:44 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:01 pm CST.

How many hours of sunshine does Winfred have in December?

In Winfred, the average sunshine duration in December is 4.1h.

What are the months with the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 1.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a low 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
Winfred, SD

Average temperature in December - Winfred, SD
  • Average high temperature in December: 25.7°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in December: 14.2°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).

Average pressure in December
Winfred, SD

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

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

Average wind speed in December
Winfred, SD

Average wind speed in December - Winfred, SD
  • Average wind speed in December: 10.6mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).

Average humidity in December
Winfred, SD

Average humidity in December - Winfred, SD
  • Average humidity in December: 86%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (67%).

Average rainfall in December
Winfred, SD

Average rainfall in December - Winfred, SD
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is November (0.59").

Average rainfall days in December
Winfred, SD

Average rainfall days in December - Winfred, SD
  • Average rainfall days in December: 3.3 days

The month with the highest number of rainy days is June (18.7 days).
The month with the least rainy days is January (1.6 days).

Average snowfall in December
Winfred, SD

Average snowfall in December - Winfred, SD
  • Average snowfall in December: 4.21"

The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Winfred, SD

Average snowfall days in December - Winfred, SD
  • Average snowfall days in December: 10.3 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Winfred, SD
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
Winfred, SD

Average sunshine days in December - Winfred, SD
  • Average sunshine days in December: 19.7 days

The month with the most sunshine days is November (22.4 days).
The month with the least sunshine days is June (9.5 days).

Average UV index in December
Winfred, SD

Average UV index in December - Winfred, SD
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in December
Winfred, SD

Average cloud cover in December - Winfred, SD
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in December
Winfred, SD

Average visibility in December - Winfred, SD
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Winfred, South Dakota, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location