December weather forecast
Reinbeck, IA

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Weather in December

The first month of the winter, December, is also a subzero cold month in Reinbeck, Iowa, with an average temperature fluctuating between 20.5°F (-6.4°C) and 31.5°F (-0.3°C).

Temperature

The onset of December coincides with a reduction in the average high-temperature, falling from a frosty 44.6°F (7°C) in November to a subzero cold 31.5°F (-0.3°C). Throughout December nights, Reinbeck registers an average low-temperature of 20.5°F (-6.4°C).

Humidity

In Reinbeck, the average relative humidity in December is 82%.

Rainfall

In December, the rain falls for 6.5 days. Throughout December, 1.54" (39mm) of precipitation is accumulated. Throughout the year, there are 144.6 rainfall days, and 30.75" (781mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Reinbeck. In December, it is snowing for 10.5 days. Throughout December, 3.46" (88mm) of snow is accumulated. In Reinbeck, during the entire year, snow falls for 47.7 days and aggregates up to 19.02" (483mm) of snow.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year in Reinbeck, Iowa.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:38 pm. On the last day of December, in Reinbeck, sunrise is at 7:39 am and sunset at 4:48 pm CST.

Sunshine

The average sunshine in December in Reinbeck is 4.4h.

UV index

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 2 in December translates into this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is it in Reinbeck in December?

During December, Reinbeck experiences an average high-temperature of 31.5°F (-0.3°C) and a low-temperature of 20.5°F (-6.4°C).

What is the average humidity in December in Reinbeck?

The average relative humidity in December in Reinbeck, Iowa, is 82%.

How many days does it rain in December in Reinbeck?

In December, in Reinbeck, Iowa, the rain falls for 6.5 days. Throughout December, 1.54" (39mm) of precipitation is accumulated.

How many days does it snow in December in Reinbeck?

In Reinbeck, Iowa, during December, snow falls for 10.5 days and regularly aggregates up to 3.46" (88mm) of snow.

What is the month with the shortest days in Reinbeck?

December has the shortest days of the year, with an average of 9h and 6min of daylight.

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

The average day length in December is 9h and 8min.

When are sunrise and sunset in December in Reinbeck?

On the first day of December in Reinbeck, sunrise is at 7:20 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:48 pm CST.

How many hours of sunshine does Reinbeck have in December?

In December, the average sunshine duration in Reinbeck, Iowa, is 4.4h.

How high is the UV index in December in Reinbeck?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's UV radiation.
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
Reinbeck, IA

Average temperature in December - Reinbeck, IA
  • Average high temperature in December: 31.5°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in December: 20.5°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in December
Reinbeck, IA

Average pressure in December - Reinbeck, IA
  • Average pressure in December: 30.11"Hg

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in December
Reinbeck, IA

Average wind speed in December - Reinbeck, IA
  • Average wind speed in December: 10.2mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in December
Reinbeck, IA

Average humidity in December - Reinbeck, IA
  • Average humidity in December: 82%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Reinbeck, IA

Average rainfall in December - Reinbeck, IA
  • Average rainfall in December: 1.54"

The wettest month (with the highest rainfall) is May (4.76").
The driest month (with the least rainfall) is January (1.1").

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Average rainfall days in December
Reinbeck, IA

Average rainfall days in December - Reinbeck, IA
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is June (19.6 days).
The month with the least rainy days is February (3.9 days).

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Average snowfall in December
Reinbeck, IA

Average snowfall in December - Reinbeck, IA
  • Average snowfall in December: 3.46"

The month with the highest snowfall is January (4.88").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Reinbeck, IA

Average snowfall days in December - Reinbeck, IA
  • Average snowfall days in December: 10.5 days

The month with the highest number of snowfall days is January (12.8 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
Reinbeck, IA

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

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

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in December
Reinbeck, IA

Average sunshine days in December - Reinbeck, IA
  • Average sunshine days in December: 16.7 days

The months with the most sunshine days are October and November (16.9 days).
The month with the least sunshine days is June (7.9 days).

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Average UV index in December
Reinbeck, IA

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

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in December
Reinbeck, IA

Average cloud cover in December - Reinbeck, IA
  • Average cloud cover in December: 54

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).

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Average visibility in December
Reinbeck, IA

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

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

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Reinbeck, Iowa, USA

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