December weather forecast
Arnold, ND

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Weather in December

The first month of the winter, December, is also a subzero cold month in Arnold, North Dakota, with an average temperature varying between 11.3°F (-11.5°C) and 23°F (-5°C).

Temperature

December signals a considerable drop in Arnold's average high-temperature, reducing from an icy 38.5°F (3.6°C) in November to a subzero cold 23°F (-5°C). Throughout December, an average nighttime temperature of 11.3°F (-11.5°C) is experienced.

Humidity

In December, the average relative humidity is 87%.

Rainfall

In Arnold, North Dakota, during December, the rain falls for 2.9 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 94.3 rainfall days, and 14.29" (363mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 12.8 days and typically aggregates up to 3.31" (84mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 36min of daylight.
On the first day of December, sunrise is at 8:08 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 8:28 am and sunset at 5:04 pm CST.

Sunshine

In Arnold, the average sunshine in December is 4.1h.

UV index

The months with the lowest UV index are November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 1 in December translates into this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.

Frequently asked questions

How cold is December?

The high-temperature, in December, in Arnold, records 23°F (-5°C), while the low-temperature is 11.3°F (-11.5°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is estimated at 84.2°F (29°C).

What is the average humidity in December?

The average relative humidity in December is 87%.

How many days does it rain in December?

In Arnold, North Dakota, in December, during 2.9 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

When does it snow the most?

December is the month with the most snowfall. Snow falls for 12.8 days and accumulates 3.31" (84mm) of snow.

How many days does it snow in December?

In Arnold, in December, snow falls for 12.8 days, with typically accumulated 3.31" (84mm) of snow.

What is the month with the shortest days?

With an average of 8h and 36min of daylight, December has the shortest days of the year.

How many hours of daylight does Arnold have in December?

In Arnold, the average day length in December is 8h and 36min.

When is the sunrise / sunset in December in Arnold?

On the first day of December, sunrise is at 8:08 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 8:28 am and sunset at 5:04 pm CST.

How many hours of sunshine does Arnold have in December?

In December, the average sunshine duration is 4.1h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health threat 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
Arnold, ND

Average temperature in December - Arnold, ND
  • Average high temperature in December: 23°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in December: 11.3°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).

Average pressure in December
Arnold, ND

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

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in December
Arnold, ND

Average wind speed in December - Arnold, ND
  • Average wind speed in December: 9.8mph

The windiest months (with the highest average wind speed) are April and October (10.8mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in December
Arnold, ND

Average humidity in December - Arnold, ND
  • Average humidity in December: 87%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (55%).

Average rainfall in December
Arnold, ND

Average rainfall in December - Arnold, ND
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in December
Arnold, ND

Average rainfall days in December - Arnold, ND
  • Average rainfall days in December: 2.9 days

The month with the highest number of rainy days is June (13.1 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in December
Arnold, ND

Average snowfall in December - Arnold, ND
  • Average snowfall in December: 3.31"

The month with the highest snowfall is December (3.31").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Arnold, ND

Average snowfall days in December - Arnold, ND
  • Average snowfall days in December: 12.8 days

The month with the highest number of snowfall days is December (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Arnold, ND

Average daylight in December / Average sunshine in December - Arnold, 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 1min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
Arnold, ND

Average sunshine days in December - Arnold, ND
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (14.6 days).

Average UV index in December
Arnold, ND

Average UV index in December - Arnold, ND
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are November and December (UV index 1).

Average cloud cover in December
Arnold, ND

Average cloud cover in December - Arnold, ND
  • Average cloud cover in December: 58

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in December
Arnold, ND

Average visibility in December - Arnold, ND
  • Average visibility in December: 5mi

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

Arnold, North Dakota, USA

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