December weather forecast
Stuart, IA

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Weather in December

December, the first month of the winter in Stuart, is still a cold month, with an average temperature fluctuating between 33.3°F (0.7°C) and 21.7°F (-5.7°C).

Temperature

December comes with a drop in the average high-temperature, falling from November's frosty 46.8°F (8.2°C) to a cold 33.3°F (0.7°C). Throughout the December nights, Stuart encounters a low-temperature of 21.7°F (-5.7°C).

Humidity

In December, the average relative humidity in Stuart, Iowa, is 79%.

Rainfall

In Stuart, during December, the rain falls for 4.1 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Stuart, during the entire year, the rain falls for 117.3 days and collects up to 19.09" (485mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 6 days. Throughout December, 1.3" (33mm) of snow is accumulated. Throughout the year, there are 31.7 snowfall days, and 9.29" (236mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of December in Stuart, Iowa, sunrise is at 7:24 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 4:57 pm CST.

Sunshine

In December, the average sunshine is 4.8h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, a regular UV index of 1 translates into these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The high-temperature, in December, in Stuart, records 33.3°F (0.7°C), while the low-temperature is 21.7°F (-5.7°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 86°F (30°C).

What is the average humidity in December?

In December, the average relative humidity is 79%.

How many days does it rain in December?

In Stuart, in December, it is raining for 4.1 days, with typically 0.67" (17mm) of accumulated precipitation.

How many days does it snow in December?

In Stuart, in December, snow falls for 6 days, with typically accumulated 1.3" (33mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

What is the average length of the day in December?

In Stuart, Iowa, the average day length in December is 9h and 14min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:24 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 4:57 pm CST.

How many hours of sunshine does Stuart have in December?

In December, the average sunshine duration is 4.8h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from 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
Stuart, IA

Average temperature in December - Stuart, IA
  • Average high temperature in December: 33.3°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in December: 21.7°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).

Average pressure in December
Stuart, IA

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

Average wind speed in December
Stuart, IA

Average wind speed in December - Stuart, IA
  • Average wind speed in December: 10.3mph

The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in December
Stuart, IA

Average humidity in December - Stuart, IA
  • Average humidity in December: 79%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Stuart, IA

Average rainfall in December - Stuart, IA
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in December
Stuart, IA

Average rainfall days in December - Stuart, IA
  • Average rainfall days in December: 4.1 days

The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in December
Stuart, IA

Average snowfall in December - Stuart, IA
  • Average snowfall in December: 1.3"

The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Stuart, IA

Average snowfall days in December - Stuart, IA
  • Average snowfall days in December: 6 days

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Stuart, IA
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in December
Stuart, IA

Average sunshine days in December - Stuart, IA
  • Average sunshine days in December: 22 days

The month with the most sunshine days is December (22 days).
The month with the least sunshine days is May (12.1 days).

Average UV index in December
Stuart, IA

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

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

Average cloud cover in December
Stuart, IA

Average cloud cover in December - Stuart, IA
  • Average cloud cover in December: 49

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 30).

Average visibility in December
Stuart, IA

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

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

Stuart, Iowa, USA

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