December weather forecast
Rugby, ND

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Weather in December

December hosts Rugby's winter at its peak, with temperatures dropping to an average high of 18.7°F (-7.4°C). December in Rugby brings a spectacle of sparkling frosts, snow, and chilly weather, bringing out the city's winter charm. The shorter days, longer nights, and less daylight time mark notable features of the month. It's a time of year when the city is beautifully adorned for the holiday season, and the snowy weather adds to the spirit of festivities. December, bathing in the winter chill, bids farewell to the year, leaving a trail of snowy landscapes.

Temperature

In December, the meteorological conditions in Rugby markedly change with the average high-temperature descending from a cold 34.3°F (1.3°C) in November to a freezing cold 18.7°F (-7.4°C). The average nighttime temperature in Rugby lowers to a frigid cold 7°F (-13.9°C) throughout December.

Humidity

In Rugby, the average relative humidity in December is 90%.

Rainfall

In Rugby, North Dakota, during December, the rain falls for 2.5 days and regularly aggregates up to 0.67" (17mm) of precipitation. Throughout the year, in Rugby, there are 96 rainfall days, and 15.39" (391mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Rugby. The month with the most snowfall in Rugby is December, when snow falls for 16.1 days and typically aggregates up to 3.9" (99mm) of snow.

Daylight

With an average of 8h and 24min of daylight, December has the shortest days of the year in Rugby.
On the first day of the month, sunrise is at 8:11 am and sunset at 4:47 pm. On the last day of December, in Rugby, sunrise is at 8:31 am and sunset at 4:55 pm CST.

Sunshine

In December, the average sunshine is 3.5h.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Rugby, North Dakota. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, a regular UV index of 1 translates into these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.

Frequently asked questions

How cold is it in Rugby in December?

In December, the average high-temperature and low-temperature in Rugby, North Dakota, are 18.7°F (-7.4°C) and 7°F (-13.9°C) respectively.

What is the average humidity in December in Rugby?

In December, the average relative humidity in Rugby is 90%.

How much does it rain in Rugby in December?

In Rugby, during December, the rain falls for 2.5 days and regularly aggregates up to 0.67" (17mm) of precipitation.

What is the snowiest month in Rugby?

December is the month with the most snowfall in Rugby, North Dakota. Snow falls for 16.1 days and accumulates 3.9" (99mm) of snow.

How many days does it snow in December in Rugby?

In Rugby, North Dakota, during December, snow falls for 16.1 days and regularly aggregates up to 3.9" (99mm) of snow.

What is the month with the shortest days in Rugby?

The month with the shortest days in Rugby is December, with an average of 8h and 24min of daylight.

What is the average length of the day in December in Rugby?

In Rugby, the average day length in December is 8h and 24min.

When are sunrise and sunset in December in Rugby?

On the first day of December in Rugby, North Dakota, sunrise is at 8:11 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 8:31 am and sunset at 4:55 pm CST.

How long on average sun shines in December in Rugby?

In Rugby, North Dakota, the average sunshine duration in December is 3.5h.

What are the months with the lowest UV index in Rugby?

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Rugby, North Dakota.

What is the UV index reading in December in Rugby?

In Rugby, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's 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
Rugby, ND

Average temperature in December - Rugby, ND
  • Average high temperature in December: 18.7°F

The warmest month (with the highest average high temperature) is August (80.1°F).
The month with the lowest average high temperature is January (15.3°F).

  • Average low temperature in December: 7°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (1.2°F).

Average pressure in December
Rugby, ND

Average pressure in December - Rugby, ND
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is February (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in December
Rugby, ND

Average wind speed in December - Rugby, ND
  • Average wind speed in December: 9.6mph

The windiest month (with the highest average wind speed) is October (11mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in December
Rugby, ND

Average humidity in December - Rugby, ND
  • Average humidity in December: 90%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (57%).

Average rainfall in December
Rugby, ND

Average rainfall in December - Rugby, ND
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in December
Rugby, ND

Average rainfall days in December - Rugby, ND
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is February (2.1 days).

Average snowfall in December
Rugby, ND

Average snowfall in December - Rugby, ND
  • Average snowfall in December: 3.9"

The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Rugby, ND

Average snowfall days in December - Rugby, ND
  • Average snowfall days in December: 16.1 days

The month with the highest number of snowfall days is December (16.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Rugby, ND
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 3h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days in December
Rugby, ND

Average sunshine days in December - Rugby, ND
  • Average sunshine days in December: 15.3 days

The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is June (11.9 days).

Average UV index in December
Rugby, ND

Average UV index in December - Rugby, 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 January, February and December (UV index 1).

Average cloud cover in December
Rugby, ND

Average cloud cover in December - Rugby, ND
  • Average cloud cover in December: 64

The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in December
Rugby, ND

Average visibility in December - Rugby, 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).

Rugby, North Dakota, USA

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