December weather forecast
Stewartsville, MO

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Weather in December

December, the first month of the winter in Stewartsville, is still a cold month, with an average temperature ranging between max 38.8°F (3.8°C) and min 25.7°F (-3.5°C).

Temperature

In December, the average high-temperature goes from a fresh 51.3°F (10.7°C) in November to a cold 38.8°F (3.8°C). Throughout the month of December, Stewartsville expects an average low of 25.7°F (-3.5°C).

Humidity

The average relative humidity in December is 76%.

Rainfall

In Stewartsville, during December, the rain falls for 5.5 days and regularly aggregates up to 1.14" (29mm) of precipitation. Throughout the year, in Stewartsville, there are 133.9 rainfall days, and 27.8" (706mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Stewartsville, Missouri, during December, snow falls for 4.3 days and regularly aggregates up to 1.38" (35mm) of snow. Throughout the year, in Stewartsville, there are 23.5 snowfall days, and 10.31" (262mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:53 pm. On the last day of December, sunrise is at 7:38 am and sunset at 5:03 pm CST.

Sunshine

In December, the average sunshine is 5.2h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Stewartsville. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold in Stewartsville?

During December, Stewartsville experiences an average high-temperature of 38.8°F (3.8°C) and a low-temperature of 25.7°F (-3.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in August is calculated to be 91.4°F (33°C).

What is the average humidity in December in Stewartsville?

In Stewartsville, Missouri, the average relative humidity in December is 76%.

How many days does it rain in December in Stewartsville?

In December, in Stewartsville, the rain falls for 5.5 days. Throughout December, 1.14" (29mm) of precipitation is accumulated.

How many days does it snow in December in Stewartsville?

In Stewartsville, Missouri, in December, during 4.3 snowfall days, 1.38" (35mm) of snow is typically accumulated.

What is the month with the shortest days in Stewartsville?

The month with the shortest days in Stewartsville is December, with an average of 9h and 24min of daylight.

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

In December, the average day length in Stewartsville, Missouri, is 9h and 25min.

When is the sunrise / sunset in December in Stewartsville?

On the first day of December in Stewartsville, Missouri, sunrise is at 7:20 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:03 pm CST.

How long on average sun shines in December in Stewartsville?

In Stewartsville, Missouri, the average sunshine duration in December is 5.2h.

When is the lowest UV index in Stewartsville?

The months with the lowest UV index in Stewartsville are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Stewartsville?

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 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
Stewartsville, MO

Average temperature in December - Stewartsville, MO
  • Average high temperature in December: 38.8°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in December: 25.7°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in December
Stewartsville, MO

Average pressure in December - Stewartsville, MO
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Stewartsville, MO

Average wind speed in December - Stewartsville, MO
  • Average wind speed in December: 9.1mph

The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in December
Stewartsville, MO

Average humidity in December - Stewartsville, MO
  • Average humidity in December: 76%

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are October and November (71%).

Average rainfall in December
Stewartsville, MO

Average rainfall in December - Stewartsville, MO
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days in December
Stewartsville, MO

Average rainfall days in December - Stewartsville, MO
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (4.7 days).

Average snowfall in December
Stewartsville, MO

Average snowfall in December - Stewartsville, MO
  • Average snowfall in December: 1.38"

The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Stewartsville, MO

Average snowfall days in December - Stewartsville, MO
  • Average snowfall days in December: 4.3 days

The months with the highest number of snowfall days are January and February (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Stewartsville, MO

Average daylight in December / Average sunshine in December - Stewartsville, MO
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 5h and 1min

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 48min).

Average sunshine days in December
Stewartsville, MO

Average sunshine days in December - Stewartsville, MO
  • Average sunshine days in December: 21.1 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in December
Stewartsville, MO

Average UV index in December - Stewartsville, MO
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Stewartsville, MO

Average cloud cover in December - Stewartsville, MO
  • Average cloud cover in December: 44

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in December
Stewartsville, MO

Average visibility in December - Stewartsville, MO
  • 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).

Stewartsville, Missouri, USA

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