December weather forecast
Dell Rapids, SD

Share

Weather in December

Finally, December in Dell Rapids, South Dakota is characteristic of its wintry conditions. The cold is expected, and residents are often prepared for this time of year, expecting temperatures to reach as low as 14.9°F (-9.5°C). With the frosty weather comes heavy snowfall, often blanketing the city, transforming it into a winter wonderland. Despite the decreased daylight hours, the city radiates a festive charm under the glow of holiday lights, offering a magical conclusion to the year.

Temperature

With the onset of December, Dell Rapids's average high-temperature witnesses a clear drop, receding from November's wintry 42.3°F (5.7°C) to a subzero cold 26.4°F (-3.1°C). Dell Rapids, during the month of December, experiences an average low-temperature of 14.9°F (-9.5°C).

Humidity

In Dell Rapids, South Dakota, the average relative humidity in December is 85%.

Rainfall

In Dell Rapids, in December, it is raining for 3.5 days, with typically 1.02" (26mm) of accumulated precipitation. In Dell Rapids, during the entire year, the rain falls for 116.4 days and collects up to 21.38" (543mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Dell Rapids, in December, during 10.3 snowfall days, 4.17" (106mm) of snow is typically accumulated. In Dell Rapids, during the entire year, snow falls for 45.6 days and aggregates up to 19.49" (495mm) 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 7:41 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 4:59 pm CST.

Sunshine

In Dell Rapids, the average sunshine in December is 4.3h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

Dell Rapids in December has an average high-temperature of 26.4°F (-3.1°C) and an average low-temperature of 14.9°F (-9.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is estimated at 84.2°F (29°C).

What is the average humidity in December?

In Dell Rapids, the average relative humidity in December is 85%.

How much does it rain in December?

In December, the rain falls for 3.5 days. Throughout December, 1.02" (26mm) of precipitation is accumulated.

How many days does it snow in December?

In December, it is snowing for 10.3 days. Throughout December, 4.17" (106mm) 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 Dell Rapids have in December?

The average day length in December is 8h and 59min.

When are sunrise and sunset in December in Dell Rapids?

On the first day of December, sunrise is at 7:41 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 4:59 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration in Dell Rapids is 4.3h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
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
Dell Rapids, SD

Average temperature in December - Dell Rapids, SD
  • Average high temperature in December: 26.4°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in December: 14.9°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

Average pressure in December
Dell Rapids, SD

Average pressure in December - Dell Rapids, 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 (29.86"Hg).

Average wind speed in December
Dell Rapids, SD

Average wind speed in December - Dell Rapids, SD
  • Average wind speed in December: 10.3mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.2mph).

Average humidity in December
Dell Rapids, SD

Average humidity in December - Dell Rapids, SD
  • Average humidity in December: 85%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).

Average rainfall in December
Dell Rapids, SD

Average rainfall in December - Dell Rapids, SD
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is January (0.63").

Average rainfall days in December
Dell Rapids, SD

Average rainfall days in December - Dell Rapids, SD
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.8 days).

Average snowfall in December
Dell Rapids, SD

Average snowfall in December - Dell Rapids, SD
  • Average snowfall in December: 4.17"

The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Dell Rapids, SD

Average snowfall days in December - Dell Rapids, SD
  • Average snowfall days in December: 10.3 days

The month with the highest number of snowfall days is December (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Dell Rapids, SD

Average daylight in December / Average sunshine in December - Dell Rapids, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in December
Dell Rapids, SD

Average sunshine days in December - Dell Rapids, SD
  • Average sunshine days in December: 18.7 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (10.6 days).

Average UV index in December
Dell Rapids, SD

Average UV index in December - Dell Rapids, 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
Dell Rapids, SD

Average cloud cover in December - Dell Rapids, SD
  • Average cloud cover in December: 54

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in December
Dell Rapids, SD

Average visibility in December - Dell Rapids, 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).

Dell Rapids, South Dakota, USA

Weather forecast for your location

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