December weather forecast
Ireton, IA

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Weather in December

December, the first month of the winter in Ireton, is also a subzero cold month, with an average temperature fluctuating between 16.9°F (-8.4°C) and 29.3°F (-1.5°C).

Temperature

Ireton's weather experiences a significant temperature drop with the arrival of December, falling from a frosty 45.1°F (7.3°C) in November to a subzero cold 29.3°F (-1.5°C). During the nights in December, an average low-temperature of 16.9°F (-8.4°C) is observed.

Humidity

In December, the average relative humidity in Ireton is 83%.

Rainfall

In Ireton, during December, the rain falls for 1.9 days and regularly aggregates up to 0.35" (9mm) of precipitation. Throughout the year, there are 80.7 rainfall days, and 6.54" (166mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Ireton are January through May, October through December. In Ireton, in December, snow falls for 5.5 days, with typically accumulated 0.35" (9mm) of snow. In Ireton, Iowa, during the entire year, snow falls for 27.5 days and aggregates up to 2.76" (70mm) of snow.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:37 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:00 pm CST.

Sunshine

In December, the average sunshine in Ireton is 4.5h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Ireton. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

How cold is it in Ireton in December?

In December, in Ireton, the average high-temperature is 29.3°F (-1.5°C), and the average low-temperature is 16.9°F (-8.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 86°F (30°C).

What is the average humidity in December in Ireton?

In December, the average relative humidity in Ireton, Iowa, is 83%.

How many days does it rain in December in Ireton?

In Ireton, Iowa, in December, during 1.9 rainfall days, 0.35" (9mm) of precipitation is typically accumulated.

How much does it snow in Ireton in December?

In Ireton, in December, during 5.5 snowfall days, 0.35" (9mm) of snow is typically accumulated.

What is the month with the shortest days in Ireton?

The month with the shortest days in Ireton is December, with an average of 9h and 6min of daylight.

How many hours of daylight does Ireton have in December?

The average day length in December in Ireton, Iowa, is 9h and 4min.

When is the sunrise / sunset in December in Ireton?

On the first day of December in Ireton, Iowa, sunrise is at 7:37 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:00 pm CST.

How many hours of sunshine does Ireton have in December?

In Ireton, the average sunshine duration in December is 4.5h.

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

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Ireton?

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

Average temperature in December - Ireton, IA
  • Average high temperature in December: 29.3°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in December: 16.9°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).

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Average pressure in December
Ireton, IA

Average pressure in December - Ireton, IA
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in December
Ireton, IA

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

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in December
Ireton, IA

Average humidity in December - Ireton, IA
  • Average humidity in December: 83%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (66%).

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Average rainfall in December
Ireton, IA

Average rainfall in December - Ireton, IA
  • Average rainfall in December: 0.35"

The wettest month (with the highest rainfall) is June (1.06").
The driest months (with the least rainfall) are January and February (0.16").

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Average rainfall days in December
Ireton, IA

Average rainfall days in December - Ireton, IA
  • Average rainfall days in December: 1.9 days

The month with the highest number of rainy days is June (13 days).
The month with the least rainy days is February (1.3 days).

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Average snowfall in December
Ireton, IA

Average snowfall in December - Ireton, IA
  • Average snowfall in December: 0.35"

The month with the highest snowfall is February (0.75").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Ireton, IA

Average snowfall days in December - Ireton, IA
  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is January (6.7 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
Ireton, IA

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 4h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in December
Ireton, IA

Average sunshine days in December - Ireton, IA
  • Average sunshine days in December: 26 days

The month with the most sunshine days is December (26 days).
The month with the least sunshine days is June (13.2 days).

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Average UV index in December
Ireton, IA

Average UV index in December - Ireton, 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, November and December (UV index 2).

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Average cloud cover in December
Ireton, IA

Average cloud cover in December - Ireton, IA
  • Average cloud cover in December: 52

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in December
Ireton, IA

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

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