December weather forecast
Grandin, MO

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Weather in December

December, the first month of the winter in Grandin, is still a chilly month, with an average temperature ranging between max 46.8°F (8.2°C) and min 33.6°F (0.9°C).

Temperature

In Grandin, the average high-temperature in December decreases from a mild 56.1°F (13.4°C) in November to a frosty 46.8°F (8.2°C). Throughout December, the average low-temperature dips to an icy 33.6°F (0.9°C).

Humidity

The average relative humidity in December in Grandin is 77%.

Rainfall

In December, the rain falls for 10.5 days. Throughout December, 2.56" (65mm) of precipitation is accumulated. Throughout the year, there are 163.8 rainfall days, and 39.06" (992mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Grandin, Missouri, are January through March, October through December. In Grandin, in December, snow falls for 1.5 days, with typically accumulated 0.71" (18mm) of snow. In Grandin, during the entire year, snow falls for 9.9 days and aggregates up to 4.57" (116mm) of snow.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year in Grandin.
On the first day of December, sunrise is at 6:58 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:57 pm CST.

Sunshine

In December, the average sunshine is 5.3h.

UV index

The months with the lowest UV index in Grandin are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 2 during December translates into the following guidance:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. To protect against the Sun's most potent rays, avoid direct exposure around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Grandin in December?

The high-temperature in Grandin, Missouri, during December is 46.8°F (8.2°C) and the low-temperature is 33.6°F (0.9°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is estimated at 87.8°F (31°C).

What is the average humidity in December in Grandin?

In December, the average relative humidity in Grandin, Missouri, is 77%.

How many days does it rain in December in Grandin?

In Grandin, Missouri, in December, during 10.5 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

How much does it snow in Grandin in December?

In Grandin, during December, snow falls for 1.5 days and regularly aggregates up to 0.71" (18mm) of snow.

What is the month with the shortest days in Grandin?

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

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

In Grandin, the average day length in December is 9h and 41min.

When is the sunrise / sunset in December in Grandin?

On the first day of December in Grandin, sunrise is at 6:58 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:57 pm CST.

How many hours of sunshine does Grandin have in December?

In Grandin, Missouri, the average sunshine duration in December is 5.3h.

What is the month with the lowest UV index in Grandin?

January 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 Grandin?

The average daily maximum UV index in December in Grandin is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe 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
Grandin, MO

Average temperature in December - Grandin, MO
  • Average high temperature in December: 46.8°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (43.3°F).

  • Average low temperature in December: 33.6°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure in December
Grandin, MO

Average pressure in December - Grandin, 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
Grandin, MO

Average wind speed in December - Grandin, MO
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in December
Grandin, MO

Average humidity in December - Grandin, MO
  • Average humidity in December: 77%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Grandin, MO

Average rainfall in December - Grandin, MO
  • Average rainfall in December: 2.56"

The wettest month (with the highest rainfall) is May (4.84").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in December
Grandin, MO

Average rainfall days in December - Grandin, MO
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (10 days).

Average snowfall in December
Grandin, MO

Average snowfall in December - Grandin, MO
  • Average snowfall in December: 0.71"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in December
Grandin, MO

Average snowfall days in December - Grandin, MO
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is January (3.2 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in December
Grandin, MO

Average sunshine days in December - Grandin, MO
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is July (9.9 days).

Average UV index in December
Grandin, MO

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Grandin, MO

Average cloud cover in December - Grandin, MO
  • Average cloud cover in December: 43

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).

Average visibility in December
Grandin, MO

Average visibility in December - Grandin, 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).

Grandin, Missouri, USA

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