December weather forecast
Arnolds Park, IA

Weather in December

December, the first month of the winter in Arnolds Park, is also a subzero cold month, with an average temperature fluctuating between 16.3°F (-8.7°C) and 27.3°F (-2.6°C).

Temperature

In Arnolds Park, the average high-temperature in December plummets from a cold 42.4°F (5.8°C) in November to a subzero cold 27.3°F (-2.6°C). In Arnolds Park, the average low-temperature is 16.3°F (-8.7°C).

Humidity

The average relative humidity in December is 85%.

Rainfall

In December, in Arnolds Park, the rain falls for 4.4 days. Throughout December, 1.34" (34mm) of precipitation is accumulated. In Arnolds Park, during the entire year, the rain falls for 121.8 days and collects up to 23.27" (591mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 11 days. Throughout December, 3.78" (96mm) of snow is accumulated. Throughout the year, in Arnolds Park, there are 48.3 snowfall days, and 21.18" (538mm) of snow is accumulated.

Daylight

The month with the shortest days in Arnolds Park is December, with an average of 9h and 2min of daylight.
On the first day of the month, sunrise is at 7:33 am and sunset at 4:45 pm. On the last day of December, in Arnolds Park, sunrise is at 7:52 am and sunset at 4:54 pm CST.

Sunshine

The average sunshine in December in Arnolds Park, Iowa, is 4.3h.

UV index

In December, the average daily maximum UV index in Arnolds Park, Iowa, is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in December in Arnolds Park?

The average relative humidity in December in Arnolds Park is 85%.

How much does it rain in Arnolds Park in December?

In Arnolds Park, in December, it is raining for 4.4 days, with typically 1.34" (34mm) of accumulated precipitation.

How many days does it snow in December in Arnolds Park?

In December, in Arnolds Park, Iowa, it is snowing for 11 days. Throughout December, 3.78" (96mm) of snow is accumulated.

What is the month with the shortest days in Arnolds Park?

The month with the shortest days is December, with an average of 9h and 2min of daylight.

How many hours of daylight does Arnolds Park have in December?

In Arnolds Park, Iowa, the average day length in December is 9h and 2min.

When are sunrise and sunset in December in Arnolds Park?

On the first day of December, sunrise is at 7:33 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 4:54 pm CST.

How long on average sun shines in December in Arnolds Park?

The average sunshine duration in December in Arnolds Park, Iowa, is 4.3h.

How high is the UV index in December in Arnolds Park?

In December, the average daily maximum UV index in Arnolds Park, Iowa, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in December
Arnolds Park, IA

Average temperature in December - Arnolds Park, IA
  • Average high temperature in December: 27.3°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in December: 16.3°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.5°F).

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Average pressure in December
Arnolds Park, IA

Average pressure in December - Arnolds Park, 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 (29.87"Hg).

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Average wind speed in December
Arnolds Park, IA

Average wind speed in December - Arnolds Park, IA
  • Average wind speed in December: 10.8mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

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Average humidity in December
Arnolds Park, IA

Average humidity in December - Arnolds Park, IA
  • Average humidity in December: 85%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in December
Arnolds Park, IA

Average rainfall in December - Arnolds Park, IA
  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.83").

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Average rainfall days in December
Arnolds Park, IA

Average rainfall days in December - Arnolds Park, IA
  • Average rainfall days in December: 4.4 days

The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (3 days).

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Average snowfall in December
Arnolds Park, IA

Average snowfall in December - Arnolds Park, IA
  • Average snowfall in December: 3.78"

The month with the highest snowfall is February (5.04").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Arnolds Park, IA

Average snowfall days in December - Arnolds Park, IA
  • Average snowfall days in December: 11 days

The month with the highest number of snowfall days is December (11 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
Arnolds Park, IA

Average daylight in December / Average sunshine in December - Arnolds Park, IA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 21min).
The month with the shortest days is December (Average daylight: 9h and 2min).

  • Average sunshine in December: 4.3h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4h).

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Average sunshine days in December
Arnolds Park, IA

Average sunshine days in December - Arnolds Park, IA
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in December
Arnolds Park, IA

Average UV index in December - Arnolds Park, 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 and November (UV index 1).

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Average cloud cover in December
Arnolds Park, IA

Average cloud cover in December - Arnolds Park, 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 July (Cloud cover 30).

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Average visibility in December
Arnolds Park, IA

Average visibility in December - Arnolds Park, IA
  • Average visibility in December: 6mi

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

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