December weather forecast
Petersburg, ND

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Weather in December

December, the first month of the winter in Petersburg, is also a subzero cold month, with an average temperature varying between 18.7°F (-7.4°C) and 8.2°F (-13.2°C).

Temperature

With the onset of December, Petersburg experiences a distinct temperature drop, with the average high-temperature reducing from November's icy 35.2°F (1.8°C) to a freezing cold 18.7°F (-7.4°C). Throughout December, Petersburg witnesses a consistent average low-temperature of 8.2°F (-13.2°C).

Humidity

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

Rainfall

In December, in Petersburg, the rain falls for 1.9 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. In Petersburg, North Dakota, during the entire year, the rain falls for 91.5 days and collects up to 15.31" (389mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 11.5 days and accumulates 3.58" (91mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 30min of daylight.
On the first day of the month, sunrise is at 8:01 am and sunset at 4:40 pm. On the last day of December, sunrise is at 8:21 am and sunset at 4:48 pm CST.

Sunshine

The average sunshine in December is 3.7h.

UV index

In Petersburg, 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 rays for ordinary individuals.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

An average high-temperature, in December, in Petersburg, is 18.7°F (-7.4°C) and the average low-temperature is 8.2°F (-13.2°C).

What is the average humidity in December?

In December, the average relative humidity is 88%.

How much does it rain in Petersburg in December?

In Petersburg, in December, it is raining for 1.9 days, with typically 0.63" (16mm) of accumulated precipitation.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 11.5 days and accumulates 3.58" (91mm) of snow.

How much does it snow in December?

In Petersburg, during December, snow falls for 11.5 days and regularly aggregates up to 3.58" (91mm) of snow.

What is the month with the shortest days?

With an average of 8h and 30min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

The average day length in December is 8h and 27min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 8:01 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 8:21 am and sunset at 4:48 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 3.7h.

How high is the UV index in December?

In Petersburg, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Petersburg, ND

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

The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is January (15.4°F).

  • Average low temperature in December: 8.2°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (1.4°F).

Average pressure in December
Petersburg, ND

Average pressure in December - Petersburg, ND
  • Average pressure in December: 30.12"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
Petersburg, ND

Average wind speed in December - Petersburg, ND
  • Average wind speed in December: 10.3mph

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

Average humidity in December
Petersburg, ND

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

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (60%).

Average rainfall in December
Petersburg, ND

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

The wettest month (with the highest rainfall) is June (2.99").
The driest month (with the least rainfall) is January (0.35").

Average rainfall days in December
Petersburg, ND

Average rainfall days in December - Petersburg, ND
  • Average rainfall days in December: 1.9 days

The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is February (1.2 days).

Average snowfall in December
Petersburg, ND

Average snowfall in December - Petersburg, ND
  • Average snowfall in December: 3.58"

The month with the highest snowfall is December (3.58").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Petersburg, ND

Average snowfall days in December - Petersburg, ND
  • Average snowfall days in December: 11.5 days

The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Petersburg, ND
  • Average daylight in December: 8h and 3min

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 30min).

  • Average sunshine in December: 3h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in December
Petersburg, ND

Average sunshine days in December - Petersburg, ND
  • Average sunshine days in December: 18.9 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in December
Petersburg, ND

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).

Average cloud cover in December
Petersburg, ND

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

The months with the most cloud cover are January and February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in December
Petersburg, ND

Average visibility in December - Petersburg, 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).

Petersburg, North Dakota, USA

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