December weather forecast
Sheldon, IA

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Weather in December

December, the first month of the winter in Sheldon, is also a subzero cold month, with an average temperature ranging between min 16.3°F (-8.7°C) and max 27.5°F (-2.5°C).

Temperature

Sheldon witnesses a significant decrease in the average high-temperature with the arrival of December, falling from November's chilly 43.3°F (6.3°C) to a subzero cold 27.5°F (-2.5°C). Throughout the month of December, Sheldon observes an average nighttime temperature of 16.3°F (-8.7°C).

Humidity

The average relative humidity in December in Sheldon is 85%.

Rainfall

In Sheldon, in December, it is raining for 4.9 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, in Sheldon, there are 128.1 rainfall days, and 24.17" (614mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Sheldon are January through May, October through December. In December, it is snowing for 10 days. Throughout December, 3.19" (81mm) of snow is accumulated. In Sheldon, during the entire year, snow falls for 48.8 days and aggregates up to 19.21" (488mm) of snow.

Daylight

December has the shortest days of the year in Sheldon, Iowa, with an average of 9h and 6min of daylight.
On the first day of December, sunrise is at 7:36 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 4:58 pm CST.

Sunshine

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

UV index

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the maximum UV index of 2 suggests this advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Sheldon in December?

The average high-temperature, in December, in Sheldon, is 27.5°F (-2.5°C), while the average low-temperature is 16.3°F (-8.7°C). In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in December in Sheldon?

In Sheldon, Iowa, the average relative humidity in December is 85%.

How many days does it rain in December in Sheldon?

In December, in Sheldon, the rain falls for 4.9 days. Throughout December, 1.34" (34mm) of precipitation is accumulated.

How much does it snow in Sheldon in December?

In December, in Sheldon, it is snowing for 10 days. Throughout December, 3.19" (81mm) of snow is accumulated.

What is the month with the shortest days in Sheldon?

With an average of 9h and 6min of daylight, December has the shortest days of the year in Sheldon, Iowa.

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

In Sheldon, the average day length in December is 9h and 3min.

When are sunrise and sunset in December in Sheldon?

In December, on the first day of the month, sunrise is at 7:36 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 4:58 pm CST.

How long on average sun shines in December in Sheldon?

The average sunshine duration in December is 4.5h.

What is the UV index reading in December in Sheldon?

In Sheldon, Iowa, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Sheldon, IA

Average temperature in December - Sheldon, IA
  • Average high temperature in December: 27.5°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in December: 16.3°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 (9.9°F).

Average pressure in December
Sheldon, IA

Average pressure in December - Sheldon, 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 (29.87"Hg).

Average wind speed in December
Sheldon, IA

Average wind speed in December - Sheldon, IA
  • Average wind speed in December: 10.4mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

Average humidity in December
Sheldon, IA

Average humidity in December - Sheldon, IA
  • Average humidity in December: 85%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).

Average rainfall in December
Sheldon, IA

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

The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days in December
Sheldon, IA

Average rainfall days in December - Sheldon, IA
  • Average rainfall days in December: 4.9 days

The months with the highest number of rainy days are May and June (17.8 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in December
Sheldon, IA

Average snowfall in December - Sheldon, IA
  • Average snowfall in December: 3.19"

The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Sheldon, IA

Average snowfall days in December - Sheldon, IA
  • Average snowfall days in December: 10 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 4h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in December
Sheldon, IA

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

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (9.6 days).

Average UV index in December
Sheldon, IA

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

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

Average cloud cover in December
Sheldon, IA

Average cloud cover in December - Sheldon, IA
  • Average cloud cover in December: 53

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in December
Sheldon, IA

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

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

Sheldon, Iowa, USA

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