December weather forecast
Mill Spring, MO

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Weather in December

December, the first month of the winter in Mill Spring, is also a frosty month, with an average temperature varying between 32°F (0°C) and 45.3°F (7.4°C).

Temperature

In December, the meteorological conditions alter, with the average high-temperature shifting from a cool 55°F (12.8°C) in November to a chilly 45.3°F (7.4°C). Mill Spring's nights in December experience an average temperature drop to a cold 32°F (0°C).

Humidity

In Mill Spring, the average relative humidity in December is 77%.

Rainfall

The months with the least rainfall are September and December Rain falls for 8.1 days and accumulates 1.26" (32mm) of rain.

Snowfall

January through March, November and December are months with snowfall in Mill Spring. In Mill Spring, during December, snow falls for 1.8 days and regularly aggregates up to 1.02" (26mm) of snow. In Mill Spring, during the entire year, snow falls for 11.9 days and aggregates up to 4.72" (120mm) of snow.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:58 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:16 am and sunset at 4:56 pm CST.

Sunshine

In December, the average sunshine is 5.1h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In December, an average UV index of 2 transforms into the following instructions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

In December, in Mill Spring, the average high-temperature is 45.3°F (7.4°C), and the average low-temperature is 32°F (0°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is computed to be 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

What is the driest month in Mill Spring?

The months with the least rainfall are September and December Rain falls for 8.1 days and accumulates 1.26" (32mm) of rain.

How many days does it rain in December?

In Mill Spring, during December, the rain falls for 8.1 days and regularly aggregates up to 1.26" (32mm) of precipitation.

How many days does it snow in December?

In Mill Spring, in December, snow falls for 1.8 days, with typically accumulated 1.02" (26mm) of snow.

What is the month with the shortest days?

With an average of 9h and 42min of daylight, December has the shortest days of the year.

How many hours of daylight does Mill Spring have in December?

The average day length in December is 9h and 40min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 6:58 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:56 pm CST.

How many hours of sunshine does Mill Spring have in December?

The average sunshine duration in December is 5.1h.

When is the lowest UV index in Mill Spring?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to 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
Mill Spring, MO

Average temperature in December - Mill Spring, MO
  • Average high temperature in December: 45.3°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in December: 32°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

Average pressure in December
Mill Spring, MO

Average pressure in December - Mill Spring, MO
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Mill Spring, MO

Average wind speed in December - Mill Spring, MO
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Mill Spring, MO

Average humidity in December - Mill Spring, MO
  • Average humidity in December: 77%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Mill Spring, MO

Average rainfall in December - Mill Spring, MO
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is April (3.03").
The driest months (with the least rainfall) are September and December (1.26").

Average rainfall days in December
Mill Spring, MO

Average rainfall days in December - Mill Spring, MO
  • Average rainfall days in December: 8.1 days

The month with the highest number of rainy days is July (15.7 days).
The months with the least rainy days are January and December (8.1 days).

Average snowfall in December
Mill Spring, MO

Average snowfall in December - Mill Spring, MO
  • Average snowfall in December: 1.02"

The month with the highest snowfall is February (1.65").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Mill Spring, MO

Average snowfall days in December - Mill Spring, MO
  • Average snowfall days in December: 1.8 days

The month with the highest number of snowfall days is January (3.8 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
Mill Spring, MO

Average daylight in December / Average sunshine in December - Mill Spring, MO
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December
Mill Spring, MO

Average sunshine days in December - Mill Spring, MO
  • Average sunshine days in December: 20.3 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (12 days).

Average UV index in December
Mill Spring, MO

Average UV index in December - Mill Spring, MO
  • Average UV index in December: 2

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

Average cloud cover in December
Mill Spring, MO

Average cloud cover in December - Mill Spring, MO
  • Average cloud cover in December: 45

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in December
Mill Spring, MO

Average visibility in December - Mill Spring, MO
  • Average visibility in December: 6mi

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

Mill Spring, Missouri, USA

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