December weather forecast
Benton, IA

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Weather in December

The first month of the winter, December, is also an icy month in Benton, Iowa, with an average temperature fluctuating between 35.2°F (1.8°C) and 23.2°F (-4.9°C).

Temperature

With the onset of December, Benton experiences a modest temperature adjustment, with the average high-temperature receding from a chilly 48.4°F (9.1°C) in November to a wintry 35.2°F (1.8°C). In Benton, in December, the average low-temperature is a subzero cold 23.2°F (-4.9°C).

Humidity

In Benton, the average relative humidity in December is 78%.

Rainfall

February and December are months with the least rain when the rain falls for 5.4 days and typically aggregates up to 0.71" (18mm) of rain.

Snowfall

January through May, October through December are months with snowfall. In Benton, in December, snow falls for 5.8 days, with typically accumulated 1.42" (36mm) of snow. Throughout the year, there are 28.7 snowfall days, and 11.85" (301mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:00 pm CST.

Sunshine

The average sunshine in December is 5h.

UV index

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 2 suggests this 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. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

An average high-temperature, in December, in Benton, is 35.2°F (1.8°C) and the average low-temperature is 23.2°F (-4.9°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 78%.

What is the driest month?

February and December are months with the least rain in Benton when the rain falls for 5.4 days and typically aggregates up to 0.71" (18mm) of rain.

How many days does it rain in December?

In Benton, in December, it is raining for 5.4 days, with typically 0.71" (18mm) of accumulated precipitation.

How many days does it snow in December in Benton?

In Benton, Iowa, in December, during 5.8 snowfall days, 1.42" (36mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Benton.

What is the average length of the day in December?

In December, the average day length is 9h and 19min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:22 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:00 pm CST.

How many hours of sunshine does Benton have in December?

In Benton, the average sunshine duration in December is 5h.

How high is the UV index in December?

In Benton, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Benton, IA

Average temperature in December - Benton, IA
  • Average high temperature in December: 35.2°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in December: 23.2°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure in December
Benton, IA

Average pressure in December - Benton, 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 (29.88"Hg).

Average wind speed in December
Benton, IA

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

The windiest months (with the highest average wind speed) are January, February and March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in December
Benton, IA

Average humidity in December - Benton, IA
  • Average humidity in December: 78%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Benton, IA

Average rainfall in December - Benton, IA
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is June (3.86").
The driest months (with the least rainfall) are February and December (0.71").

Average rainfall days in December
Benton, IA

Average rainfall days in December - Benton, IA
  • Average rainfall days in December: 5.4 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (4.1 days).

Average snowfall in December
Benton, IA

Average snowfall in December - Benton, IA
  • Average snowfall in December: 1.42"

The month with the highest snowfall is January (3.54").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Benton, IA

Average snowfall days in December - Benton, IA
  • Average snowfall days in December: 5.8 days

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Benton, IA

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in December
Benton, IA

Average sunshine days in December - Benton, IA
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is May (10.6 days).

Average UV index in December
Benton, IA

Average UV index in December - Benton, IA
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December
Benton, IA

Average cloud cover in December - Benton, IA
  • Average cloud cover in December: 46

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in December
Benton, IA

Average visibility in December - Benton, 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).

Benton, Iowa, USA

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