December weather forecast
Marne, IA

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Weather in December

December, the first month of the winter in Marne, is also an icy month, with an average temperature fluctuating between 21°F (-6.1°C) and 33.4°F (0.8°C).

Temperature

Marne's weather in December involves a decrease in the average high-temperature, moving down from November's chilly 47.1°F (8.4°C) to a wintry 33.4°F (0.8°C). The low-temperature average for Marne during December stands at a freezing cold 21°F (-6.1°C).

Humidity

The average relative humidity in December is 79%.

Rainfall

In Marne, in December, it is raining for 4.4 days, with typically 0.94" (24mm) of accumulated precipitation. In Marne, during the entire year, the rain falls for 118.7 days and collects up to 20.79" (528mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Marne, in December, snow falls for 6.4 days, with typically accumulated 1.81" (46mm) of snow. In Marne, during the entire year, snow falls for 32.3 days and aggregates up to 9.41" (239mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of December in Marne, sunrise is at 7:27 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:00 pm CST.

Sunshine

The average sunshine in December is 4.9h.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Marne. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Around midday, solar radiation is most harmful; hence, exposure should be limited. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is December in Marne?

In December, in Marne, the average high-temperature is 33.4°F (0.8°C), and the average low-temperature is 21°F (-6.1°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 86°F (30°C).

What is the average humidity in December in Marne?

In Marne, Iowa, the average relative humidity in December is 79%.

How many days does it rain in December in Marne?

In Marne, during December, the rain falls for 4.4 days and regularly aggregates up to 0.94" (24mm) of precipitation.

How much does it snow in Marne in December?

In Marne, in December, during 6.4 snowfall days, 1.81" (46mm) of snow is typically accumulated.

What is the month with the shortest days in Marne?

December has the shortest days of the year in Marne, Iowa, with an average of 9h and 12min of daylight.

How many hours of daylight does Marne have in December?

In Marne, Iowa, the average day length in December is 9h and 14min.

What time are sunrise and sunset in December in Marne?

In December, on the first day of the month, sunrise is at 7:27 am and sunset at 4:51 pm. On the last day of the month, in Marne, sunrise is at 7:46 am and sunset at 5:00 pm CST.

How many hours of sunshine does Marne have in December?

In Marne, the average sunshine duration in December is 4.9h.

When is the lowest UV index in Marne?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Marne, Iowa.

How high is the UV index in December in Marne?

In December, the average daily maximum UV index in Marne, Iowa, is 2. A UV Index reading 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
Marne, IA

Average temperature in December - Marne, IA
  • Average high temperature in December: 33.4°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in December: 21°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

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Average pressure in December
Marne, IA

Average pressure in December - Marne, IA
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in December
Marne, IA

Average wind speed in December - Marne, IA
  • Average wind speed in December: 10.1mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in December
Marne, IA

Average humidity in December - Marne, IA
  • Average humidity in December: 79%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in December
Marne, IA

Average rainfall in December - Marne, IA
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in December
Marne, IA

Average rainfall days in December - Marne, IA
  • Average rainfall days in December: 4.4 days

The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (3.1 days).

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Average snowfall in December
Marne, IA

Average snowfall in December - Marne, IA
  • Average snowfall in December: 1.81"

The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Marne, IA

Average snowfall days in December - Marne, IA
  • Average snowfall days in December: 6.4 days

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Marne, IA

Average daylight in December / Average sunshine in December - Marne, IA
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in December
Marne, IA

Average sunshine days in December - Marne, IA
  • Average sunshine days in December: 21.2 days

The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in December
Marne, IA

Average UV index in December - Marne, IA
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average cloud cover in December
Marne, IA

Average cloud cover in December - Marne, IA
  • Average cloud cover in December: 48

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in December
Marne, IA

Average visibility in December - Marne, IA
  • Average visibility in December: 6mi

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

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Marne, Iowa, USA

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