December weather forecast
Peosta, IA

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Weather in December

December, the first month of the winter in Peosta, is also a subzero cold month, with temperature in the range of an average low of 21.2°F (-6°C) and an average high of 31.5°F (-0.3°C).

Temperature

A shift in Peosta's weather is observed as November turns into December, with the average high temperature reducing from a frosty 44.1°F (6.7°C) to a subzero cold 31.5°F (-0.3°C). In the month of December, Peosta experiences an average low-temperature of 21.2°F (-6°C).

Humidity

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

Rainfall

In Peosta, during December, the rain falls for 7.2 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, there are 140.9 rainfall days, and 28.11" (714mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Peosta, during December, snow falls for 9.3 days and regularly aggregates up to 3.03" (77mm) of snow. Throughout the year, there are 46.4 snowfall days, and 17.64" (448mm) of snow is accumulated.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year in Peosta.
On the first day of the month, sunrise is at 7:13 am and sunset at 4:31 pm. On the last day of December, in Peosta, sunrise is at 7:32 am and sunset at 4:40 pm CST.

Sunshine

In December, the average sunshine in Peosta, Iowa, is 4.2h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

How cold is it in Peosta in December?

The average high-temperature, in December, in Peosta, is 31.5°F (-0.3°C), while the average low-temperature is 21.2°F (-6°C).

What is the average humidity in December in Peosta?

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

How much does it rain in Peosta in December?

In Peosta, Iowa, during December, the rain falls for 7.2 days and regularly aggregates up to 1.38" (35mm) of precipitation.

How much does it snow in Peosta in December?

In Peosta, Iowa, during December, snow falls for 9.3 days and regularly aggregates up to 3.03" (77mm) of snow.

What is the month with the shortest days in Peosta?

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

How many hours of daylight does Peosta have in December?

In Peosta, Iowa, the average day length in December is 9h and 8min.

When is the sunrise / sunset in December in Peosta?

On the first day of December in Peosta, Iowa, sunrise is at 7:13 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:40 pm CST.

How many hours of sunshine does Peosta have in December?

The average sunshine duration in December in Peosta is 4.2h.

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

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Peosta.

What is the UV index intensity in December in Peosta?

In December, the average daily maximum UV index in Peosta is 1. A UV Index value of 2, and less, symbolizes 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
Peosta, IA

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

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (24.6°F).

  • Average low temperature in December: 21.2°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).

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Average pressure in December
Peosta, IA

Average pressure in December - Peosta, IA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Peosta, IA

Average wind speed in December - Peosta, IA
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in December
Peosta, IA

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

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in December
Peosta, IA

Average rainfall in December - Peosta, IA
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.18").

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Average rainfall days in December
Peosta, IA

Average rainfall days in December - Peosta, IA
  • Average rainfall days in December: 7.2 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (4.6 days).

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Average snowfall in December
Peosta, IA

Average snowfall in December - Peosta, IA
  • Average snowfall in December: 3.03"

The month with the highest snowfall is January (5.08").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Peosta, IA

Average snowfall days in December - Peosta, IA
  • Average snowfall days in December: 9.3 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Peosta, 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 1min

The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in December
Peosta, IA

Average sunshine days in December - Peosta, IA
  • Average sunshine days in December: 17.3 days

The month with the most sunshine days is December (17.3 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in December
Peosta, IA

Average UV index in December - Peosta, IA
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Peosta, IA

Average cloud cover in December - Peosta, IA
  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in December
Peosta, IA

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

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

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Peosta, Iowa, USA

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