December weather forecast
Davenport, IA

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An intricate layout of the city of Davenport, Iowa, set in a scenic spot on the famous Mississippi River
An intricate layout of the city of Davenport, Iowa, set in a scenic spot on the famous Mississippi River

Weather in December

December brings in the full swing of Winter, with colder temperatures, increased snowfall and higher humidity. The number of daylight hours dwindles to 9.2, the year's lowest, making for shorter days and longer, colder nights. The city's snowfall is second highest only to January, providing a white blanket just in time for the holidays. Despite the chilling temperatures and frosty weather, Davenport's winter charm is a sight to behold. The muffled silence of a snowy city coupled with beautifully lit holiday decorations create an ambiance of serenity and warmth in Davenport.

Temperature

In Davenport, the average high-temperature in December drops from a frosty 46.8°F (8.2°C) in November to a wintry 34.3°F (1.3°C). During the December nights, an average temperature of 23.7°F (-4.6°C) is observed in Davenport.

Humidity

In Davenport, Iowa, the average relative humidity in December is 81%.

Rainfall

In December, in Davenport, the rain falls for 6.9 days. Throughout December, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 138.1 rainfall days, and 27.32" (694mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Davenport, during December, snow falls for 6.9 days and regularly aggregates up to 1.89" (48mm) of snow. In Davenport, during the entire year, snow falls for 35.5 days and aggregates up to 12.8" (325mm) 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 the month, sunrise is at 7:10 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:42 pm CST.

Sunshine

In December, the average sunshine is 4.2h.

UV index

In Davenport, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

How cold is December in Davenport?

During December, Davenport experiences an average high-temperature of 34.3°F (1.3°C) and a low-temperature of 23.7°F (-4.6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 86°F (30°C).

What is the average humidity in December in Davenport?

In Davenport, the average relative humidity in December is 81%.

How many days does it rain in December in Davenport?

In Davenport, Iowa, during December, the rain falls for 6.9 days and regularly aggregates up to 1.26" (32mm) of precipitation.

How many days does it snow in December in Davenport?

In Davenport, Iowa, during December, snow falls for 6.9 days and regularly aggregates up to 1.89" (48mm) of snow.

What is the month with the shortest days in Davenport?

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

How many hours of daylight does Davenport have in December?

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

When are sunrise and sunset in December in Davenport?

On the first day of December in Davenport, sunrise is at 7:10 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:42 pm CST.

How many hours of sunshine does Davenport have in December?

In Davenport, the average sunshine duration in December is 4.2h.

How high is the UV index in December in Davenport?

The average daily maximum UV index in December in Davenport is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe 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
Davenport, IA

Average temperature in December - Davenport, IA
  • Average high temperature in December: 34.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in December: 23.7°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

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Average pressure in December
Davenport, IA

Average pressure in December - Davenport, IA
  • Average pressure in December: 30.11"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
Davenport, IA

Average wind speed in December - Davenport, IA
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

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Average humidity in December
Davenport, IA

Average humidity in December - Davenport, IA
  • Average humidity in December: 81%

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Davenport, IA

Average rainfall in December - Davenport, IA
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is February (1.1").

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Average rainfall days in December
Davenport, IA

Average rainfall days in December - Davenport, IA
  • Average rainfall days in December: 6.9 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall in December
Davenport, IA

Average snowfall in December - Davenport, IA
  • Average snowfall in December: 1.89"

The month with the highest snowfall is January (3.98").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Davenport, IA

Average snowfall days in December - Davenport, IA
  • Average snowfall days in December: 6.9 days

The month with the highest number of snowfall days is January (10.9 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
Davenport, IA

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

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in December
Davenport, IA

Average sunshine days in December - Davenport, IA
  • Average sunshine days in December: 17.8 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (11.4 days).

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Average UV index in December
Davenport, IA

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

The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in December
Davenport, IA

Average cloud cover in December - Davenport, IA
  • Average cloud cover in December: 55

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

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Average visibility in December
Davenport, IA

Average visibility in December - Davenport, 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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Davenport, Iowa, USA

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