December weather forecast
Walnut Grove, MO

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Weather in December

December, the first month of the winter in Walnut Grove, is still a chilly month, with an average temperature fluctuating between 30°F (-1.1°C) and 44.6°F (7°C).

Temperature

The transition into December involves a decrease in the average high-temperature, falling from a fresh 54.9°F (12.7°C) in November to a frosty 44.6°F (7°C). In the month of December, an average of 30°F (-1.1°C) marks the low-temperature.

Humidity

The average relative humidity in December in Walnut Grove is 75%.

Rainfall

In Walnut Grove, in December, during 9.1 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Walnut Grove, during the entire year, the rain falls for 167.3 days and collects up to 37.91" (963mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Walnut Grove, in December, during 4.2 snowfall days, 0.87" (22mm) of snow is typically accumulated. In Walnut Grove, during the entire year, snow falls for 21.3 days and aggregates up to 8.94" (227mm) of snow.

Daylight

December has the shortest days of the year in Walnut Grove, with an average of 9h and 36min of daylight.
On the first day of the month, sunrise is at 7:10 am and sunset at 4:56 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:06 pm CST.

Sunshine

In Walnut Grove, the average sunshine in December is 5.5h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

The high-temperature during December is 44.6°F (7°C) and the low-temperature is 30°F (-1.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 98.6°F (37°C).

What is the average humidity in December?

In December, the average relative humidity is 75%.

How many days does it rain in December?

In December, the rain falls for 9.1 days. Throughout December, 2.01" (51mm) of precipitation is accumulated.

How much does it snow in December?

In Walnut Grove, in December, during 4.2 snowfall days, 0.87" (22mm) of snow is typically accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 36min of daylight.

What is the average length of the day in December?

In Walnut Grove, Missouri, the average day length in December is 9h and 38min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:10 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:06 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 5.5h.

When is the lowest UV index?

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?

The average daily maximum UV index in December 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
Walnut Grove, MO

Average temperature in December - Walnut Grove, MO
  • Average high temperature in December: 44.6°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in December: 30°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in December
Walnut Grove, MO

Average pressure in December - Walnut Grove, MO
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Walnut Grove, MO

Average wind speed in December - Walnut Grove, MO
  • Average wind speed in December: 9.3mph

The windiest months (with the highest average wind speed) are January and March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).

Average humidity in December
Walnut Grove, MO

Average humidity in December - Walnut Grove, MO
  • Average humidity in December: 75%

The months with the highest relative humidity are March and May (77%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Walnut Grove, MO

Average rainfall in December - Walnut Grove, MO
  • Average rainfall in December: 2.01"

The wettest month (with the highest rainfall) is May (5.63").
The driest month (with the least rainfall) is January (1.73").

Average rainfall days in December
Walnut Grove, MO

Average rainfall days in December - Walnut Grove, MO
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
Walnut Grove, MO

Average snowfall in December - Walnut Grove, MO
  • Average snowfall in December: 0.87"

The month with the highest snowfall is February (3.11").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Walnut Grove, MO

Average snowfall days in December - Walnut Grove, MO
  • Average snowfall days in December: 4.2 days

The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Walnut Grove, MO

Average daylight in December / Average sunshine in December - Walnut Grove, 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 36min).

  • Average sunshine in December: 5h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in December
Walnut Grove, MO

Average sunshine days in December - Walnut Grove, MO
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is July (9.3 days).

Average UV index in December
Walnut Grove, MO

Average UV index in December - Walnut Grove, MO
  • Average UV index in December: 2

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

Average cloud cover in December
Walnut Grove, MO

Average cloud cover in December - Walnut Grove, MO
  • Average cloud cover in December: 42

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in December
Walnut Grove, MO

Average visibility in December - Walnut Grove, 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).

Walnut Grove, Missouri, USA

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