December weather forecast and climate
Arena, ND

The first month of the winter, December, is also a subzero cold month in Arena, North Dakota, with average temperature varying between 23.2°F (-4.9°C) and 11.3°F (-11.5°C).

Temperature

In December, the average high-temperature significantly decreases, from a cold 38.7°F (3.7°C) in November, to a subzero cold 23.2°F (-4.9°C). The average low-temperature, in Arena, is 11.3°F (-11.5°C).

Humidity

The average relative humidity in Arena is 86%.

Rainfall

In December, in Arena, the rain falls for 3.6 days. Throughout December, 0.75" (19mm) of precipitation is accumulated. In Arena, North Dakota, during the entire year, the rain falls for 105.9 days and collects up to 15" (381mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 15.7 days. Throughout December, 3.98" (101mm) of snow is accumulated. In Arena, during the entire year, snow falls for 73.7 days, and aggregates up to 23.11" (587mm) of snow.

Daylight

The month with the shortest days in Arena is December, with an average of 8.6h of daylight.

Sunshine

In December, the average sunshine in Arena is 4h.

UV index

Months with the lowest UV index in Arena are January, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Arena?

In December, in Arena, North Dakota, the average high-temperature is 23.2°F (-4.9°C), and the average low-temperature is 11.3°F (-11.5°C).

What is the average humidity in December in Arena?

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

How many days does it rain in December in Arena?

In Arena, North Dakota, in December, during 3.6 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

How many days does it snow in December in Arena?

In Arena, in December, during 15.7 snowfall days, 3.98" (101mm) of snow is typically accumulated.

What is the month with the shortest days in Arena?

The month with the shortest days in Arena is December, with an average of 8.6h of daylight.

How many hours of daylight does Arena have in December?

In December, the average length of the day is 8.6h.

How many hours of sunshine does Arena have in December?

In December, the average sunshine in Arena is 4h.

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

January, 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 Arena?

The average daily maximum UV index in December in Arena, North Dakota, is 1. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to the UV radiation.
Average temperature in December - Arena, ND
  • Average high temperature in December: -4.9°C

The warmest month (with the highest average high temperature) is July (28.7°C).
The month with the lowest average high temperature is January (-6.2°C).

  • Average low temperature in December: -11.5°C

The month with the highest average low temperature is July (16.3°C).
The coldest month (with the lowest average low temperature) is January (-14.4°C).

Average pressure in December - Arena, ND
  • Average pressure in December: 1020.5mbar

The month with the highest atmospheric pressure is February (1021.7mbar).
The month with the lowest atmospheric pressure is June (1010.7mbar).

Average wind speed in December - Arena, ND
  • Average wind speed in December: 15.4km/h

The windiest month (with the highest average wind speed) is April (17.2km/h).
The calmest month (with the lowest average wind speed) is August (13.4km/h).

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

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

Average rainfall in December - Arena, ND
  • Average rainfall in December: 19mm

The wettest month (with the highest rainfall) is June (58mm).
The driest month (with the least rainfall) is January (15mm).

Average rainfall days in December - Arena, ND
  • Average rainfall days in December: 3.6 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (3.4 days).

Average snowfall in December - Arena, ND
  • Average snowfall in December: 101mm

The month with the highest snowfall is February (110mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December - Arena, ND
  • Average snowfall days in December: 15.7 days

The month with the highest number of snowfall days is December (15.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Arena, ND
  • Average daylight in December: 8.6h

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in December: 4h

The month with the most sunshine is July (Average sunshine: 11.4h).
The month with the least sunshine is January (Average sunshine: 3.8h).

Average sunshine days in December - Arena, ND
  • Average sunshine days in December: 14.1 days

The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is March (12.3 days).

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

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

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

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

Average visibility in December - Arena, ND
  • Average visibility in December: 8km

Months with the highest visibility are May, June, July, August, September and October (10km).
Months with the lowest visibility are January, February, March and December (8km).