December weather forecast
Dysart, IA

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Weather in December

The first month of the winter, December, is still a freezing cold month in Dysart, Iowa, with an average temperature fluctuating between 31.8°F (-0.1°C) and 21.2°F (-6°C).

Temperature

The onset of December introduces a moderate change in Dysart's weather, with average high-temperatures falling from November's chilly 45°F (7.2°C) to a freezing cold 31.8°F (-0.1°C). During December, the temperature tends to dip to an average of 21.2°F (-6°C) at night.

Humidity

The average relative humidity in December is 81%.

Rainfall

In Dysart, during December, the rain falls for 6.7 days and regularly aggregates up to 1.54" (39mm) of precipitation. In Dysart, during the entire year, the rain falls for 147.7 days and collects up to 31.06" (789mm) of precipitation.

Snowfall

Months with snowfall in Dysart are January through May, October through December. In Dysart, during December, snow falls for 10 days and regularly aggregates up to 3.23" (82mm) of snow. In Dysart, during the entire year, snow falls for 46.3 days and aggregates up to 17.6" (447mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:38 pm. On the last day of December, in Dysart, sunrise is at 7:37 am and sunset at 4:47 pm CST.

Sunshine

In December, the average sunshine in Dysart is 4.4h.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Dysart. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 2 suggests this advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

How cold is December in Dysart?

In Dysart, in December, the average high-temperature is 31.8°F (-0.1°C), and the average low-temperature is 21.2°F (-6°C).

What is the average humidity in December in Dysart?

The average relative humidity in December in Dysart, Iowa, is 81%.

How many days does it rain in December in Dysart?

In Dysart, Iowa, during December, the rain falls for 6.7 days and regularly aggregates up to 1.54" (39mm) of precipitation.

How many days does it snow in December in Dysart?

In Dysart, during December, snow falls for 10 days and regularly aggregates up to 3.23" (82mm) of snow.

What is the month with the shortest days in Dysart?

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

How many hours of daylight does Dysart have in December?

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

When are sunrise and sunset in December in Dysart?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:47 pm CST.

How many hours of sunshine does Dysart have in December?

In December, the average sunshine duration in Dysart is 4.4h.

When is the lowest UV index in Dysart?

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

What is the UV index intensity in December in Dysart?

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

Average temperature in December - Dysart, IA
  • Average high temperature in December: 31.8°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (25.5°F).

  • Average low temperature in December: 21.2°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).

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Average pressure in December
Dysart, IA

Average pressure in December - Dysart, 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 (29.89"Hg).

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Average wind speed in December
Dysart, IA

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

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (7mph).

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Average humidity in December
Dysart, IA

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

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Dysart, IA

Average rainfall in December - Dysart, IA
  • Average rainfall in December: 1.54"

The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is January (1.14").

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Average rainfall days in December
Dysart, IA

Average rainfall days in December - Dysart, IA
  • Average rainfall days in December: 6.7 days

The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is February (4.7 days).

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Average snowfall in December
Dysart, IA

Average snowfall in December - Dysart, IA
  • Average snowfall in December: 3.23"

The month with the highest snowfall is January (4.96").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Dysart, IA

Average snowfall days in December - Dysart, IA
  • Average snowfall days in December: 10 days

The month with the highest number of snowfall days is January (12.8 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
Dysart, IA

Average daylight in December / Average sunshine in December - Dysart, 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 2min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in December
Dysart, IA

Average sunshine days in December - Dysart, IA
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (7.9 days).

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Average UV index in December
Dysart, IA

Average UV index in December - Dysart, 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
Dysart, IA

Average cloud cover in December - Dysart, 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 September (Cloud cover 30).

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Average visibility in December
Dysart, IA

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

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