December weather forecast
Coulee, ND

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Weather in December

December, the first month of the winter in Coulee, is still a freezing cold month, with an average temperature fluctuating between 9.1°F (-12.7°C) and 20.3°F (-6.5°C).

Temperature

Coulee's weather undergoes a significant change with the arrival of December, as the average high-temperature drops from a wintry 35.4°F (1.9°C) in November to a subzero cold 20.3°F (-6.5°C). Coulee experiences an average nighttime temperature of 9.1°F (-12.7°C) in the month of December.

Humidity

The average relative humidity in December in Coulee is 88%.

Rainfall

In Coulee, during December, the rain falls for 2.9 days and regularly aggregates up to 0.59" (15mm) of precipitation. Throughout the year, there are 104.5 rainfall days, and 16.1" (409mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 14 days. Throughout December, 3.46" (88mm) of snow is accumulated. Throughout the year, there are 74.4 snowfall days, and 21.42" (544mm) of snow is accumulated.

Daylight

With an average of 8h and 24min of daylight, December has the shortest days of the year in Coulee.
On the first day of the month, sunrise is at 8:19 am and sunset at 4:54 pm. On the last day of December, sunrise is at 8:40 am and sunset at 5:02 pm CST.

Sunshine

January and December, with an average of 3.8h of sunshine, are months with the least sunshine.

UV index

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 2 during December leads to these advisories:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.

Frequently asked questions

How cold is December?

The average high-temperature and low-temperature during December are 20.3°F (-6.5°C) and 9.1°F (-12.7°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is appraised at 82.4°F (28°C).

What is the average humidity in December?

In Coulee, the average relative humidity in December is 88%.

How many days does it rain in December?

In Coulee, in December, it is raining for 2.9 days, with typically 0.59" (15mm) of accumulated precipitation.

How many days does it snow in December?

In December, it is snowing for 14 days. Throughout December, 3.46" (88mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 8h and 24min of daylight, December has the shortest days of the year.

How many hours of daylight does Coulee have in December?

In December, the average day length is 8h and 23min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 8:19 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 8:40 am and sunset at 5:02 pm CST.

What is the month with the least sunshine in Coulee?

January and December, with an average of 3.8h of sunshine, are months with the least sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 3.8h.

What is the UV index reading in December?

In Coulee, the average daily maximum UV index in December 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
Coulee, ND

Average temperature in December - Coulee, ND
  • Average high temperature in December: 20.3°F

The warmest month (with the highest average high temperature) is August (81.5°F).
The month with the lowest average high temperature is January (18.1°F).

  • Average low temperature in December: 9.1°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).

Average pressure in December
Coulee, ND

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

Average wind speed in December
Coulee, ND

Average wind speed in December - Coulee, ND
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is October (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in December
Coulee, ND

Average humidity in December - Coulee, ND
  • Average humidity in December: 88%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (54%).

Average rainfall in December
Coulee, ND

Average rainfall in December - Coulee, ND
  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is June (2.83").
The driest months (with the least rainfall) are January and February (0.51").

Average rainfall days in December
Coulee, ND

Average rainfall days in December - Coulee, ND
  • 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 February (2 days).

Average snowfall in December
Coulee, ND

Average snowfall in December - Coulee, ND
  • Average snowfall in December: 3.46"

The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Coulee, ND

Average snowfall days in December - Coulee, ND
  • Average snowfall days in December: 14 days

The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).

Average sunshine days in December
Coulee, ND

Average sunshine days in December - Coulee, ND
  • Average sunshine days in December: 17 days

The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is June (10.7 days).

Average UV index in December
Coulee, ND

Average UV index in December - Coulee, ND
  • Average UV index in December: 2

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

Average cloud cover in December
Coulee, ND

Average cloud cover in December - Coulee, ND
  • Average cloud cover in December: 61

The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 22).

Average visibility in December
Coulee, ND

Average visibility in December - Coulee, 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).

Coulee, North Dakota, USA

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