December weather forecast
Dana, IA

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Weather in December

December, the first month of the winter in Dana, is also a wintry month, with an average temperature fluctuating between 32°F (0°C) and 21°F (-6.1°C).

Temperature

Start of December brings a shift in the average high-temperature, falling from November's frosty 45.9°F (7.7°C) to a wintry 32°F (0°C). An average low-temperature of 21°F (-6.1°C) is noted during the nights in December in Dana, Iowa.

Humidity

In December, the average relative humidity in Dana, Iowa, is 80%.

Rainfall

In Dana, during December, the rain falls for 4.8 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 125.7 rainfall days, and 26.5" (673mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Dana, Iowa, are January through May, October through December. In December, it is snowing for 8.3 days. Throughout December, 2.64" (67mm) of snow is accumulated. Throughout the year, there are 38.1 snowfall days, and 15.31" (389mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:26 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:55 pm CST.

Sunshine

In Dana, the average sunshine in December is 4.7h.

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 2 during December translates into these guidelines:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

How cold is December in Dana?

In December, in Dana, the average high-temperature is 32°F (0°C), and the average low-temperature is 21°F (-6.1°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 89.6°F (32°C).

What is the average humidity in December in Dana?

In Dana, the average relative humidity in December is 80%.

How many days does it rain in December in Dana?

In Dana, in December, it is raining for 4.8 days, with typically 1.34" (34mm) of accumulated precipitation.

How much does it snow in Dana in December?

In Dana, Iowa, in December, snow falls for 8.3 days, with typically accumulated 2.64" (67mm) of snow.

What is the month with the shortest days in Dana?

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

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

In December, the average day length is 9h and 10min.

What time are sunrise and sunset in December in Dana?

In December, on the first day of the month, sunrise is at 7:26 am and sunset at 4:46 pm. On the last day of the month, in Dana, Iowa, sunrise is at 7:45 am and sunset at 4:55 pm CST.

How many hours of sunshine does Dana have in December?

In Dana, Iowa, the average sunshine duration in December is 4.7h.

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

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

What is the UV index reading in December in Dana?

The average daily maximum UV index in December in Dana, Iowa, is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Dana, IA

Average temperature in December - Dana, IA
  • Average high temperature in December: 32°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in December: 21°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

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Average pressure in December
Dana, IA

Average pressure in December - Dana, IA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in December
Dana, IA

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

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

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Average humidity in December
Dana, IA

Average humidity in December - Dana, IA
  • Average humidity in December: 80%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in December
Dana, IA

Average rainfall in December - Dana, IA
  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is January (0.87").

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Average rainfall days in December
Dana, IA

Average rainfall days in December - Dana, IA
  • Average rainfall days in December: 4.8 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in December
Dana, IA

Average snowfall in December - Dana, IA
  • Average snowfall in December: 2.64"

The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Dana, IA

Average snowfall days in December - Dana, IA
  • Average snowfall days in December: 8.3 days

The month with the highest number of snowfall days is January (9.8 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
Dana, IA

Average daylight in December / Average sunshine in December - Dana, 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 12min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in December
Dana, IA

Average sunshine days in December - Dana, IA
  • Average sunshine days in December: 18.8 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (11.1 days).

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Average UV index in December
Dana, IA

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

The months with the highest UV index are June and July (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
Dana, IA

Average cloud cover in December - Dana, IA
  • Average cloud cover in December: 50

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).

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Average visibility in December
Dana, IA

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

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