December weather forecast and climate
Merricourt, ND

December, the first month of the winter, in Merricourt, is still a freezing cold month, with average temperature fluctuating between 11.8°F (-11.2°C) and 23.7°F (-4.6°C).

Temperature

In December, the average high-temperature declines considerably, from a wintry 39.9°F (4.4°C) in November, to a subzero cold 23.7°F (-4.6°C). The average low-temperature, is 11.8°F (-11.2°C).

Humidity

In Merricourt, North Dakota, the average relative humidity is 86%.

Rainfall

In December, in Merricourt, the rain falls for 2.7 days. Throughout December, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 92.3 rainfall days, and 15.28" (388mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Merricourt. Months with the most snowfall in Merricourt are January and December, with an average 2.76" (70mm) of accumulated snow.

Daylight

December has the shortest days of the year in Merricourt, North Dakota, with an average of 8.7h of daylight.

Sunshine

The average sunshine in Merricourt is 4h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 1 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Merricourt?

In Merricourt, North Dakota, in December, the average high-temperature is 23.7°F (-4.6°C), and the average low-temperature is 11.8°F (-11.2°C).

What is the average humidity in December in Merricourt?

In Merricourt, the average relative humidity in December is 86%.

How much does it rain in Merricourt in December?

In December, in Merricourt, North Dakota, the rain falls for 2.7 days. Throughout December, 0.59" (15mm) of precipitation is accumulated.

How much does it snow in Merricourt in December?

In Merricourt, North Dakota, in December, snow falls for 11.4 days, with typically accumulated 2.76" (70mm) of snow.

When does it snow the most in Merricourt?

Months with the most snowfall are January and December, with an average 2.76" (70mm) of accumulated snow.

What is the month with the shortest days in Merricourt?

December has the shortest days of the year in Merricourt, with an average of 8.7h of daylight.

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

The average length of the day in December in Merricourt is 8.7h.

How long on average sun shines in December in Merricourt?

The average sunshine in December in Merricourt is 4h.

When is the lowest UV index in Merricourt?

Months with the lowest UV index in Merricourt are January, November and December, with an average maximum UV index of 1.

How high is the UV index in December in Merricourt?

The average daily maximum UV index in December in Merricourt is 1. A UV Index reading of 2, and below, represents a low health threat from the exposure to the Sun's UV radiation.
Average temperature in December - Merricourt, ND
  • Average high temperature in December: 23.7°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 (19.8°F).

  • Average low temperature in December: 11.8°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

Average pressure in December - Merricourt, ND
  • Average pressure in December: 30.13"

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

Average wind speed in December - Merricourt, ND
  • Average wind speed in December: 10.2mph

The windiest months (with the highest average wind speed) are April and October (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).

Average humidity in December - Merricourt, ND
  • Average humidity in December: 86%

The month with the highest relative humidity is January (89%).
Months with the lowest relative humidity are August and September (61%).

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

The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is January (0.39").

Average rainfall days in December - Merricourt, ND
  • Average rainfall days in December: 2.7 days

The month with the highest number of rainy days is June (14.3 days).
The month with the least rainy days is January (1.7 days).

Average snowfall in December - Merricourt, ND
  • Average snowfall in December: 2.76"

Months with the highest snowfall are January and December (2.76").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in December - Merricourt, ND
  • Average snowfall days in December: 11.4 days

The month with the highest number of snowfall days is February (11.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Merricourt, ND
  • Average daylight in December: 8.7h

The month with the longest days is June (Average daylight: 15.7h).
The month with the shortest days is December (Average daylight: 8.7h).

  • Average sunshine in December: 4h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is January (Average sunshine: 3.8h).

Average sunshine days in December - Merricourt, ND
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).

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

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in December - Merricourt, ND
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in December - Merricourt, ND
  • Average visibility in December: 6mi

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