December weather forecast
Newport, IA

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Weather in December

December, the first month of the winter in Newport, is also an icy month, with an average temperature fluctuating between 33.8°F (1°C) and 22.8°F (-5.1°C).

Temperature

December's arrival coincides with a drop in the average high-temperature, decreasing from November's chilly 46.2°F (7.9°C) to an icy 33.8°F (1°C). The month of December records an average low-temperature of 22.8°F (-5.1°C).

Humidity

The average relative humidity in December in Newport is 81%.

Rainfall

In Newport, Iowa, in December, it is raining for 6.5 days, with typically 1.3" (33mm) of accumulated precipitation. In Newport, Iowa, during the entire year, the rain falls for 134.7 days and collects up to 27.72" (704mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Newport, in December, snow falls for 7.3 days, with typically accumulated 1.97" (50mm) of snow. Throughout the year, in Newport, there are 36.6 snowfall days, and 14.21" (361mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Newport.
On the first day of the month, sunrise is at 7:14 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:32 am and sunset at 4:45 pm CST.

Sunshine

In Newport, Iowa, the average sunshine in December is 4.5h.

UV index

In Newport, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Newport?

In Newport, 33.8°F (1°C) is the average high-temperature and 22.8°F (-5.1°C) is the average low-temperature during December. In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in December in Newport?

The average relative humidity in December in Newport is 81%.

How many days does it rain in December in Newport?

In Newport, in December, during 6.5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

How many days does it snow in December in Newport?

In Newport, Iowa, in December, snow falls for 7.3 days, with typically accumulated 1.97" (50mm) of snow.

What is the month with the shortest days in Newport?

December has the shortest days of the year, with an average of 9h and 12min of daylight.

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

In Newport, the average day length in December is 9h and 13min.

When is the sunrise / sunset in December in Newport?

On the first day of December in Newport, sunrise is at 7:14 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:45 pm CST.

How many hours of sunshine does Newport have in December?

In Newport, the average sunshine duration in December is 4.5h.

What is the UV index intensity in December in Newport?

In Newport, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes 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
Newport, IA

Average temperature in December - Newport, IA
  • Average high temperature in December: 33.8°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.1°F).

  • Average low temperature in December: 22.8°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

Average pressure in December
Newport, IA

Average pressure in December - Newport, 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 (29.9"Hg).

Average wind speed in December
Newport, IA

Average wind speed in December - Newport, IA
  • Average wind speed in December: 10mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

Average humidity in December
Newport, IA

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

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Newport, IA

Average rainfall in December - Newport, IA
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.14").

Average rainfall days in December
Newport, IA

Average rainfall days in December - Newport, IA
  • Average rainfall days in December: 6.5 days

The months with the highest number of rainy days are May and June (17 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in December
Newport, IA

Average snowfall in December - Newport, IA
  • Average snowfall in December: 1.97"

The month with the highest snowfall is January (5").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Newport, IA

Average snowfall days in December - Newport, IA
  • Average snowfall days in December: 7.3 days

The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Newport, 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 3min

The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in December
Newport, IA

Average sunshine days in December - Newport, IA
  • Average sunshine days in December: 18.1 days

The months with the most sunshine days are October, November and December (18.1 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in December
Newport, IA

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

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

Average cloud cover in December
Newport, IA

Average cloud cover in December - Newport, IA
  • Average cloud cover in December: 54

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Newport, IA

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

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

Newport, Iowa, USA

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