December weather forecast
Highmore, SD

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Weather in December

December, the first month of the winter in Highmore, is also a subzero cold month, with an average temperature fluctuating between 26.8°F (-2.9°C) and 14.9°F (-9.5°C).

Temperature

With the onset of December, Highmore's weather experiences a distinct temperature drop, moving from a chilly 43.7°F (6.5°C) in November to a subzero cold 26.8°F (-2.9°C). The low-temperature average for Highmore during December stands at a still freezing cold 14.9°F (-9.5°C).

Humidity

The average relative humidity in December in Highmore is 83%.

Rainfall

In December, in Highmore, the rain falls for 2.5 days. Throughout December, 0.75" (19mm) of precipitation is accumulated. Throughout the year, in Highmore, there are 97.3 rainfall days, and 16.73" (425mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Highmore, during December, snow falls for 10 days and regularly aggregates up to 2.4" (61mm) of snow. In Highmore, during the entire year, snow falls for 47.1 days and aggregates up to 16.06" (408mm) of snow.

Daylight

December has the shortest days of the year in Highmore, with an average of 8h and 54min of daylight.
On the first day of December in Highmore, sunrise is at 7:54 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 8:14 am and sunset at 5:08 pm CST.

Sunshine

The average sunshine in December is 4.4h.

UV index

The average daily maximum UV index in December is 2. 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: A daily maximum UV index of 2 in December translates into the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Highmore?

The average high-temperature and low-temperature in Highmore during December are 26.8°F (-2.9°C) and 14.9°F (-9.5°C) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in August is estimated at 87.8°F (31°C).

What is the average humidity in December in Highmore?

The average relative humidity in December in Highmore, South Dakota, is 83%.

How many days does it rain in December in Highmore?

In Highmore, South Dakota, in December, it is raining for 2.5 days, with typically 0.75" (19mm) of accumulated precipitation.

How many days does it snow in December in Highmore?

In Highmore, South Dakota, during December, snow falls for 10 days and regularly aggregates up to 2.4" (61mm) of snow.

What is the month with the shortest days in Highmore?

The month with the shortest days is December, with an average of 8h and 54min of daylight.

How many hours of daylight does Highmore have in December?

The average day length in December in Highmore, South Dakota, is 8h and 54min.

When are sunrise and sunset in December in Highmore?

In December, on the first day of the month, sunrise is at 7:54 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 8:14 am and sunset at 5:08 pm CST.

How long on average sun shines in December in Highmore?

In December, the average sunshine duration in Highmore, South Dakota, is 4.4h.

How high is the UV index in December in Highmore?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes 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
Highmore, SD

Average temperature in December - Highmore, SD
  • Average high temperature in December: 26.8°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in December: 14.9°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).

Average pressure in December
Highmore, SD

Average pressure in December - Highmore, 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 (29.84"Hg).

Average wind speed in December
Highmore, SD

Average wind speed in December - Highmore, SD
  • Average wind speed in December: 10.5mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).

Average humidity in December
Highmore, SD

Average humidity in December - Highmore, SD
  • Average humidity in December: 83%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (60%).

Average rainfall in December
Highmore, SD

Average rainfall in December - Highmore, SD
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in December
Highmore, SD

Average rainfall days in December - Highmore, SD
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (1.3 days).

Average snowfall in December
Highmore, SD

Average snowfall in December - Highmore, SD
  • Average snowfall in December: 2.4"

The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Highmore, SD

Average snowfall days in December - Highmore, SD
  • Average snowfall days in December: 10 days

The months with the highest number of snowfall days are January and February (10.1 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Highmore, SD
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 4h and 2min

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 6min).

Average sunshine days in December
Highmore, SD

Average sunshine days in December - Highmore, SD
  • Average sunshine days in December: 20 days

The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (12.4 days).

Average UV index in December
Highmore, SD

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in December
Highmore, SD

Average cloud cover in December - Highmore, SD
  • Average cloud cover in December: 52

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 24).

Average visibility in December
Highmore, SD

Average visibility in December - Highmore, 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).

Highmore, South Dakota, USA

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