December weather forecast
Gilbertville, IA

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Weather in December

The first month of the winter, December, is still a freezing cold month in Gilbertville, Iowa, with an average temperature varying between 20.5°F (-6.4°C) and 31.1°F (-0.5°C).

Temperature

In December, the average high-temperature goes from a frosty 44.1°F (6.7°C) in November to a subzero cold 31.1°F (-0.5°C). Gilbertville temperatures generally rest at a low of 20.5°F (-6.4°C) during the December nights.

Humidity

In Gilbertville, the average relative humidity in December is 82%.

Rainfall

In December, the rain falls for 5.8 days. Throughout December, 1.34" (34mm) of precipitation is accumulated. In Gilbertville, during the entire year, the rain falls for 133.6 days and collects up to 28.27" (718mm) of precipitation.

Snowfall

Months with snowfall in Gilbertville are January through May, October through December. In Gilbertville, during December, snow falls for 8.9 days and regularly aggregates up to 2.8" (71mm) of snow. In Gilbertville, during the entire year, snow falls for 41.6 days and aggregates up to 15.24" (387mm) 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 7:19 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:46 pm CST.

Sunshine

In December, the average sunshine is 4.3h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 1 in December interprets into the following advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

How cold is December in Gilbertville?

During December, Gilbertville experiences an average high-temperature of 31.1°F (-0.5°C) and a low-temperature of 20.5°F (-6.4°C).

What is the average humidity in December in Gilbertville?

In December, the average relative humidity is 82%.

How many days does it rain in December in Gilbertville?

In Gilbertville, during December, the rain falls for 5.8 days and regularly aggregates up to 1.34" (34mm) of precipitation.

How many days does it snow in December in Gilbertville?

In December, in Gilbertville, it is snowing for 8.9 days. Throughout December, 2.8" (71mm) of snow is accumulated.

What is the month with the shortest days in Gilbertville?

December has the shortest days of the year in Gilbertville, with an average of 9h and 6min of daylight.

How many hours of daylight does Gilbertville have in December?

In Gilbertville, the average day length in December is 9h and 8min.

What time are sunrise and sunset in December in Gilbertville?

In December, on the first day of the month, sunrise is at 7:19 am and sunset at 4:37 pm. On the last day of the month, in Gilbertville, sunrise is at 7:38 am and sunset at 4:46 pm CST.

How long on average sun shines in December in Gilbertville?

In Gilbertville, the average sunshine duration in December is 4.3h.

When is the lowest UV index in Gilbertville?

The month with the lowest UV index in Gilbertville is December, with an average maximum UV index of 1.

What is the UV index intensity in December in Gilbertville?

The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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
Gilbertville, IA

Average temperature in December - Gilbertville, IA
  • Average high temperature in December: 31.1°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in December: 20.5°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12°F).

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Average pressure in December
Gilbertville, IA

Average pressure in December - Gilbertville, 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
Gilbertville, IA

Average wind speed in December - Gilbertville, IA
  • Average wind speed in December: 10.1mph

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
Gilbertville, IA

Average humidity in December - Gilbertville, IA
  • Average humidity in December: 82%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Gilbertville, IA

Average rainfall in December - Gilbertville, IA
  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is June (4.29").
The driest months (with the least rainfall) are January and February (1.02").

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Average rainfall days in December
Gilbertville, IA

Average rainfall days in December - Gilbertville, IA
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is June (18.1 days).
The month with the least rainy days is February (4 days).

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Average snowfall in December
Gilbertville, IA

Average snowfall in December - Gilbertville, IA
  • Average snowfall in December: 2.8"

The month with the highest snowfall is January (4.21").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Gilbertville, IA

Average snowfall days in December - Gilbertville, IA
  • Average snowfall days in December: 8.9 days

The month with the highest number of snowfall days is January (11.5 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
Gilbertville, IA

Average daylight in December / Average sunshine in December - Gilbertville, 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 6min).

  • 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 48min).

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Average sunshine days in December
Gilbertville, IA

Average sunshine days in December - Gilbertville, IA
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is June (10 days).

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Average UV index in December
Gilbertville, IA

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

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Gilbertville, IA

Average cloud cover in December - Gilbertville, IA
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in December
Gilbertville, IA

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

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