December weather forecast
Guttenberg, IA

Weather in December

The first month of the winter, December, is also a subzero cold month in Guttenberg, Iowa, with an average temperature varying between 20.3°F (-6.5°C) and 30.4°F (-0.9°C).

Temperature

In December, the average high-temperature drops from a frosty 43.5°F (6.4°C) in November to a freezing cold 30.4°F (-0.9°C). The average low-temperature, in December, is 20.3°F (-6.5°C).

Humidity

The average relative humidity in December in Guttenberg is 83%.

Rainfall

In Guttenberg, during December, the rain falls for 6 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Guttenberg, Iowa, during the entire year, the rain falls for 138.5 days and collects up to 28.46" (723mm) of precipitation.

Snowfall

Months with snowfall in Guttenberg are January through May, October through December. In December, in Guttenberg, it is snowing for 10.6 days. Throughout December, 3.94" (100mm) of snow is accumulated. Throughout the year, there are 48.6 snowfall days, and 19.57" (497mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Guttenberg, with an average of 9h and 5min of daylight.
On the first day of December in Guttenberg, sunrise is at 7:15 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:39 pm CST.

Sunshine

In December, the average sunshine in Guttenberg is 4h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Guttenberg?

The average high-temperature, in December, in Guttenberg, is 30.4°F (-0.9°C), while the average low-temperature is 20.3°F (-6.5°C).

What is the average humidity in December in Guttenberg?

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

How many days does it rain in December in Guttenberg?

In December, the rain falls for 6 days. Throughout December, 1.42" (36mm) of precipitation is accumulated.

How much does it snow in Guttenberg in December?

In Guttenberg, Iowa, during December, snow falls for 10.6 days and regularly aggregates up to 3.94" (100mm) of snow.

What is the month with the shortest days in Guttenberg?

December has the shortest days of the year in Guttenberg, Iowa, with an average of 9h and 5min of daylight.

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

In December, the average day length is 9h and 5min.

What time are sunrise and sunset in December in Guttenberg?

On the first day of December, sunrise is at 7:15 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:39 pm CST.

How many hours of sunshine does Guttenberg have in December?

In December, the average sunshine duration in Guttenberg is 4h.

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

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

What is the UV index reading in December in Guttenberg?

In Guttenberg, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health risk 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
Guttenberg, IA

Average temperature in December - Guttenberg, IA
  • Average high temperature in December: 30.4°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (23.7°F).

  • Average low temperature in December: 20.3°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).

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Average pressure in December
Guttenberg, IA

Average pressure in December - Guttenberg, IA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Guttenberg, IA

Average wind speed in December - Guttenberg, IA
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in December
Guttenberg, IA

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

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in December
Guttenberg, IA

Average rainfall in December - Guttenberg, IA
  • Average rainfall in December: 1.42"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is January (1.18").

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Average rainfall days in December
Guttenberg, IA

Average rainfall days in December - Guttenberg, IA
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (4.4 days).

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Average snowfall in December
Guttenberg, IA

Average snowfall in December - Guttenberg, IA
  • Average snowfall in December: 3.94"

The month with the highest snowfall is January (5.2").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Guttenberg, IA

Average snowfall days in December - Guttenberg, IA
  • Average snowfall days in December: 10.6 days

The month with the highest number of snowfall days is January (12.5 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
Guttenberg, IA

Average daylight in December / Average sunshine in December - Guttenberg, IA
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 15h and 17min).
The month with the shortest days is December (Average daylight: 9h and 5min).

  • Average sunshine in December: 4h and 0min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in December
Guttenberg, IA

Average sunshine days in December - Guttenberg, IA
  • Average sunshine days in December: 16.7 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in December
Guttenberg, IA

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

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Average cloud cover in December
Guttenberg, IA

Average cloud cover in December - Guttenberg, IA
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in December
Guttenberg, IA

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

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

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