December weather forecast
Kaylor, SD

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Weather in December

The first month of the winter, December, is also a subzero cold month in Kaylor, South Dakota, with temperature in the range of an average high of 29.5°F (-1.4°C) and an average low of 17.1°F (-8.3°C).

Temperature

Kaylor in December showcases a distinct temperature shift, moving from an average high of a frosty 45.7°F (7.6°C) in November to a subzero cold 29.5°F (-1.4°C). Throughout the nights in December, Kaylor experiences an average low-temperature of 17.1°F (-8.3°C).

Humidity

In December, the average relative humidity is 82%.

Rainfall

In December, the rain falls for 2.9 days. Throughout December, 0.98" (25mm) of precipitation is accumulated. In Kaylor, during the entire year, the rain falls for 106.8 days and collects up to 19.29" (490mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. 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 0min of daylight.
On the first day of December, sunrise is at 7:44 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:06 pm CST.

Sunshine

The average sunshine in December is 4.7h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

How cold is it in December?

In December, the average high-temperature and low-temperature are 29.5°F (-1.4°C) and 17.1°F (-8.3°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 89.6°F (32°C).

What is the average humidity in December?

In December, the average relative humidity is 82%.

How many days 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?

The month with the most snowfall is December, when snow falls for 7.5 days and typically aggregates up to 2.56" (65mm) of snow.

How much does it snow in December?

In December, it is snowing for 7.5 days. Throughout December, 2.56" (65mm) 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.

What is the average length of the day in December?

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

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:44 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:06 pm CST.

How long on average sun shines in December?

In Kaylor, South Dakota, the average sunshine duration in December 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.

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe 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
Kaylor, SD

Average temperature in December - Kaylor, 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
Kaylor, SD

Average pressure in December - Kaylor, 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
Kaylor, SD

Average wind speed in December - Kaylor, 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
Kaylor, SD

Average humidity in December - Kaylor, 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
Kaylor, SD

Average rainfall in December - Kaylor, 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
Kaylor, SD

Average rainfall days in December - Kaylor, 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
Kaylor, SD

Average snowfall in December - Kaylor, 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
Kaylor, SD

Average snowfall days in December - Kaylor, 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
Kaylor, SD

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

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 0min).

  • 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
Kaylor, SD

Average sunshine days in December - Kaylor, 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
Kaylor, SD

Average UV index in December - Kaylor, 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
Kaylor, SD

Average cloud cover in December - Kaylor, 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
Kaylor, SD

Average visibility in December - Kaylor, 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).

Kaylor, South Dakota, USA

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