December weather forecast
South Heart, ND

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Weather in December

December, the first month of the winter in South Heart, is also a subzero cold month, with an average temperature ranging between min 12.9°F (-10.6°C) and max 24.6°F (-4.1°C).

Temperature

South Heart sees a considerable decrease in average high-temperatures during December, falling from a cold 39.6°F (4.2°C) in November to a freezing cold 24.6°F (-4.1°C). During the nights in December, the temperature in South Heart averages to a frigid cold 12.9°F (-10.6°C).

Humidity

In South Heart, the average relative humidity in December is 84%.

Rainfall

In South Heart, in December, it is raining for 3.3 days, with typically 0.47" (12mm) of accumulated precipitation. In South Heart, North Dakota, during the entire year, the rain falls for 90.5 days and collects up to 13.78" (350mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in South Heart. In South Heart, in December, during 10.5 snowfall days, 2.64" (67mm) of snow is typically accumulated. Throughout the year, in South Heart, there are 56.7 snowfall days, and 19.72" (501mm) of snow is accumulated.

Daylight

With an average of 8h and 36min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:17 am and sunset at 4:05 pm. On the last day of December, sunrise is at 7:37 am and sunset at 4:13 pm MST.

Sunshine

In December, the average sunshine in South Heart is 4.5h.

UV index

January, February, October through 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 low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, an average UV index of 2 transforms into the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in South Heart?

In South Heart, in December, the average high-temperature is 24.6°F (-4.1°C), and the average low-temperature is 12.9°F (-10.6°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is estimated at 82.4°F (28°C).

What is the average humidity in December in South Heart?

In South Heart, the average relative humidity in December is 84%.

How much does it rain in South Heart in December?

In South Heart, North Dakota, during December, the rain falls for 3.3 days and regularly aggregates up to 0.47" (12mm) of precipitation.

How much does it snow in South Heart in December?

In South Heart, in December, snow falls for 10.5 days, with typically accumulated 2.64" (67mm) of snow.

What is the month with the shortest days in South Heart?

The month with the shortest days is December, with an average of 8h and 36min of daylight.

What is the average length of the day in December in South Heart?

The average day length in December in South Heart, North Dakota, is 8h and 36min.

When are sunrise and sunset in December in South Heart?

On the first day of December in South Heart, sunrise is at 7:17 am and sunset at 4:05 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:13 pm MST.

How many hours of sunshine does South Heart have in December?

The average sunshine duration in December is 4.5h.

What are the months with the lowest UV index in South Heart?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in South Heart, North Dakota.

What is the UV index reading in December in South Heart?

In South Heart, North Dakota, the average daily maximum UV index in December is 2. 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
South Heart, ND

Average temperature in December - South Heart, ND
  • Average high temperature in December: 24.6°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (23.5°F).

  • Average low temperature in December: 12.9°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in December
South Heart, ND

Average pressure in December - South Heart, ND
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in December
South Heart, ND

Average wind speed in December - South Heart, ND
  • Average wind speed in December: 11.2mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).

Average humidity in December
South Heart, ND

Average humidity in December - South Heart, ND
  • Average humidity in December: 84%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (51%).

Average rainfall in December
South Heart, ND

Average rainfall in December - South Heart, ND
  • Average rainfall in December: 0.47"

The wettest months (with the highest rainfall) are May and July (1.93").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in December
South Heart, ND

Average rainfall days in December - South Heart, ND
  • Average rainfall days in December: 3.3 days

The month with the highest number of rainy days is June (12.9 days).
The months with the least rainy days are January and February (2.3 days).

Average snowfall in December
South Heart, ND

Average snowfall in December - South Heart, ND
  • Average snowfall in December: 2.64"

The month with the highest snowfall is November (3.15").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
South Heart, ND

Average snowfall days in December - South Heart, ND
  • Average snowfall days in December: 10.5 days

The month with the highest number of snowfall days is February (11.9 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December /
Average sunshine in December
South Heart, ND

Average daylight in December / Average sunshine in December - South Heart, ND
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 4h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 24min).

Average sunshine days in December
South Heart, ND

Average sunshine days in December - South Heart, ND
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is April (14.4 days).

Average UV index in December
South Heart, ND

Average UV index in December - South Heart, ND
  • Average UV index in December: 2

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

Average cloud cover in December
South Heart, ND

Average cloud cover in December - South Heart, ND
  • Average cloud cover in December: 54

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 20).

Average visibility in December
South Heart, ND

Average visibility in December - South Heart, ND
  • 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).

South Heart, North Dakota, USA

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