December weather forecast
Gravois Mills, MO

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Weather in December

December, the first month of the winter in Gravois Mills, is still a chilly month, with an average temperature fluctuating between 43.2°F (6.2°C) and 29.3°F (-1.5°C).

Temperature

December implies a gentle temperature shift, with average high-temperatures reducing from November's cool 53.8°F (12.1°C) to a frosty 43.2°F (6.2°C). Gravois Mills's average low-temperature in December is measured at a subzero cold 29.3°F (-1.5°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

In December, the rain falls for 7.2 days. Throughout December, 1.61" (41mm) of precipitation is accumulated. Throughout the year, in Gravois Mills, Missouri, there are 145.6 rainfall days, and 30.35" (771mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 4.1 days. Throughout December, 1.18" (30mm) of snow is accumulated. Throughout the year, there are 19.9 snowfall days, and 9.45" (240mm) of snow is accumulated.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year in Gravois Mills, Missouri.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:51 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:01 pm CST.

Sunshine

In Gravois Mills, Missouri, the average sunshine in December 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. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

Is it cold in Gravois Mills during December?

The high-temperature in Gravois Mills, Missouri, during December is 43.2°F (6.2°C) and the low-temperature is 29.3°F (-1.5°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 100.4°F (38°C).

What is the average humidity in December in Gravois Mills?

In Gravois Mills, the average relative humidity in December is 76%.

How many days does it rain in December in Gravois Mills?

In Gravois Mills, in December, it is raining for 7.2 days, with typically 1.61" (41mm) of accumulated precipitation.

How much does it snow in Gravois Mills in December?

In Gravois Mills, Missouri, during December, snow falls for 4.1 days and regularly aggregates up to 1.18" (30mm) of snow.

What is the month with the shortest days in Gravois Mills?

December has the shortest days of the year in Gravois Mills, with an average of 9h and 36min of daylight.

How many hours of daylight does Gravois Mills have in December?

In Gravois Mills, the average day length in December is 9h and 33min.

When is the sunrise / sunset in December in Gravois Mills?

On the first day of December in Gravois Mills, sunrise is at 7:09 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:01 pm CST.

How many hours of sunshine does Gravois Mills have in December?

The average sunshine duration in December is 5.2h.

What are the months with the lowest UV index in Gravois Mills?

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

How high is the UV index in December in Gravois Mills?

In Gravois Mills, Missouri, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Gravois Mills, MO

Average temperature in December - Gravois Mills, MO
  • Average high temperature in December: 43.2°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in December
Gravois Mills, MO

Average pressure in December - Gravois Mills, MO
  • 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 (29.92"Hg).

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Average wind speed in December
Gravois Mills, MO

Average wind speed in December - Gravois Mills, MO
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is January (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in December
Gravois Mills, MO

Average humidity in December - Gravois Mills, MO
  • Average humidity in December: 76%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Gravois Mills, MO

Average rainfall in December - Gravois Mills, MO
  • Average rainfall in December: 1.61"

The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is January (1.38").

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Average rainfall days in December
Gravois Mills, MO

Average rainfall days in December - Gravois Mills, MO
  • Average rainfall days in December: 7.2 days

The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and December (7.2 days).

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Average snowfall in December
Gravois Mills, MO

Average snowfall in December - Gravois Mills, MO
  • Average snowfall in December: 1.18"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Gravois Mills, MO

Average snowfall days in December - Gravois Mills, MO
  • Average snowfall days in December: 4.1 days

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

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Average daylight in December /
Average sunshine in December
Gravois Mills, MO

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days in December
Gravois Mills, MO

Average sunshine days in December - Gravois Mills, MO
  • Average sunshine days in December: 19.8 days

The month with the most sunshine days is December (19.8 days).
The month with the least sunshine days is May (11 days).

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Average UV index in December
Gravois Mills, MO

Average UV index in December - Gravois Mills, 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).

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Average cloud cover in December
Gravois Mills, MO

Average cloud cover in December - Gravois Mills, MO
  • Average cloud cover in December: 44

The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are June, July and August (Cloud cover 28).

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Average visibility in December
Gravois Mills, MO

Average visibility in December - Gravois Mills, MO
  • Average visibility in December: 6mi

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

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Gravois Mills, Missouri, USA

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