December weather forecast
Atalissa, IA

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Weather in December

December, the first month of the winter in Atalissa, is also an icy month, with an average temperature ranging between max 34°F (1.1°C) and min 23°F (-5°C).

Temperature

In Atalissa, the average high-temperature in December drops from a chilly 46.4°F (8°C) in November to an icy 34°F (1.1°C). Atalissa records a steady low-temperature average of 23°F (-5°C) during December.

Humidity

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

Rainfall

In Atalissa, in December, during 3.8 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, there are 92.5 rainfall days, and 7.68" (195mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Atalissa are January through April, October through December. In Atalissa, in December, snow falls for 4.3 days, with typically accumulated 0.16" (4mm) of snow. Throughout the year, in Atalissa, there are 22.5 snowfall days, and 3.11" (79mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Atalissa.
On the first day of December, sunrise is at 7:12 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:44 pm CST.

Sunshine

The average sunshine in December in Atalissa, Iowa, is 4.5h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: During December, 1 as the daily maximum UV index converts into the following advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is December in Atalissa?

The average high-temperature, in December, in Atalissa, is 34°F (1.1°C), while the average low-temperature is 23°F (-5°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

What is the average humidity in December in Atalissa?

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

How many days does it rain in December in Atalissa?

In December, in Atalissa, Iowa, the rain falls for 3.8 days. Throughout December, 0.31" (8mm) of precipitation is accumulated.

How many days does it snow in December in Atalissa?

In Atalissa, during December, snow falls for 4.3 days and regularly aggregates up to 0.16" (4mm) of snow.

What is the month with the shortest days in Atalissa?

The month with the shortest days in Atalissa, Iowa, is December, with an average of 9h and 12min of daylight.

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

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

When are sunrise and sunset in December in Atalissa?

In December, on the first day of the month, sunrise is at 7:12 am and sunset at 4:35 pm. On the last day of the month, in Atalissa, Iowa, sunrise is at 7:31 am and sunset at 4:44 pm CST.

How long on average sun shines in December in Atalissa?

The average sunshine duration in December in Atalissa is 4.5h.

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

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

What is the UV index intensity in December in Atalissa?

In Atalissa, Iowa, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Atalissa, IA

Average temperature in December - Atalissa, IA
  • Average high temperature in December: 34°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in December: 23°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 (15.4°F).

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Average pressure in December
Atalissa, IA

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Atalissa, IA

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

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 (6.8mph).

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Average humidity in December
Atalissa, IA

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

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Atalissa, IA

Average rainfall in December - Atalissa, IA
  • Average rainfall in December: 0.31"

The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is February (0.28").

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Average rainfall days in December
Atalissa, IA

Average rainfall days in December - Atalissa, IA
  • Average rainfall days in December: 3.8 days

The month with the highest number of rainy days is June (13.2 days).
The month with the least rainy days is January (2.8 days).

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Average snowfall in December
Atalissa, IA

Average snowfall in December - Atalissa, IA
  • Average snowfall in December: 0.16"

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Atalissa, IA

Average snowfall days in December - Atalissa, IA
  • Average snowfall days in December: 4.3 days

The month with the highest number of snowfall days is January (6.4 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
Atalissa, IA

Average daylight in December / Average sunshine in December - Atalissa, 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 3min

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 6min).

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Average sunshine days in December
Atalissa, IA

Average sunshine days in December - Atalissa, IA
  • Average sunshine days in December: 24.4 days

The month with the most sunshine days is December (24.4 days).
The month with the least sunshine days is June (14.8 days).

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Average UV index in December
Atalissa, IA

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Atalissa, IA

Average cloud cover in December - Atalissa, IA
  • Average cloud cover in December: 53

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in December
Atalissa, IA

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

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

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Atalissa, Iowa, USA

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