December weather forecast
Grandview, MO

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Weather in December

December brings full-fledged winter back to Grandview, enveloping the city in a layer of frost. Snowfall records increase to 1.02" (26mm), further enhancing the classic winter scenery. Compared to the frosty November, December features an increase in the cold, with days becoming shorter and nights longer. As a result, Grandview experiences a traditional winter environment, radiating an atmosphere of festivity, chill and warmth from indoor retreats. By the end of the month, the city is all set to welcome the new year against the backdrop of a chilly, snowy landscape.

Temperature

The onset of December introduces a moderate change in Grandview's weather, with average high-temperatures falling from November's cool 52.7°F (11.5°C) to an icy 41.2°F (5.1°C). During the nights in December, the temperature in Grandview, Missouri, averages to a subzero cold 28°F (-2.2°C).

Humidity

In December, the average relative humidity in Grandview, Missouri, is 74%.

Rainfall

In December, in Grandview, Missouri, the rain falls for 5.4 days. Throughout December, 1.38" (35mm) of precipitation is accumulated. In Grandview, Missouri, during the entire year, the rain falls for 133.9 days and collects up to 28.54" (725mm) of precipitation.

Snowfall

Months with snowfall in Grandview, Missouri, are January through May, October through December. In Grandview, Missouri, in December, during 3.1 snowfall days, 1.02" (26mm) of snow is typically accumulated. In Grandview, during the entire year, snow falls for 18 days and aggregates up to 9.57" (243mm) of snow.

Daylight

The month with the shortest days in Grandview is December, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:56 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:06 pm CST.

Sunshine

In December, the average sunshine is 5.4h.

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 value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 2 suggests these recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

Is December cold in Grandview?

In December, the average high-temperature and low-temperature are 41.2°F (5.1°C) and 28°F (-2.2°C) respectively. 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 calculated to be 95°F (35°C).

What is the average humidity in December in Grandview?

In Grandview, Missouri, the average relative humidity in December is 74%.

How much does it rain in Grandview in December?

In Grandview, Missouri, in December, it is raining for 5.4 days, with typically 1.38" (35mm) of accumulated precipitation.

How much does it snow in Grandview in December?

In Grandview, in December, during 3.1 snowfall days, 1.02" (26mm) of snow is typically accumulated.

What is the month with the shortest days in Grandview?

With an average of 9h and 30min of daylight, December has the shortest days of the year in Grandview, Missouri.

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

The average day length in December in Grandview, Missouri, is 9h and 30min.

What time are sunrise and sunset in December in Grandview?

On the first day of December in Grandview, sunrise is at 7:18 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:06 pm CST.

How many hours of sunshine does Grandview have in December?

In Grandview, the average sunshine duration in December is 5.4h.

What are the months with the lowest UV index in Grandview?

January, February, November 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 Grandview?

In Grandview, Missouri, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes 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
Grandview, MO

Average temperature in December - Grandview, MO
  • Average high temperature in December: 41.2°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in December: 28°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

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Average pressure in December
Grandview, MO

Average pressure in December - Grandview, 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 (29.89"Hg).

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Average wind speed in December
Grandview, MO

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

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

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Average humidity in December
Grandview, MO

Average humidity in December - Grandview, MO
  • Average humidity in December: 74%

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

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Average rainfall in December
Grandview, MO

Average rainfall in December - Grandview, MO
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days in December
Grandview, MO

Average rainfall days in December - Grandview, MO
  • Average rainfall days in December: 5.4 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (5.3 days).

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Average snowfall in December
Grandview, MO

Average snowfall in December - Grandview, MO
  • Average snowfall in December: 1.02"

The month with the highest snowfall is February (3.31").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Grandview, MO

Average snowfall days in December - Grandview, MO
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is February (5.4 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
Grandview, MO

Average daylight in December / Average sunshine in December - Grandview, MO
  • Average daylight in December: 9h and 3min

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 30min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

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Average sunshine days in December
Grandview, MO

Average sunshine days in December - Grandview, MO
  • Average sunshine days in December: 22.6 days

The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is May (11.3 days).

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Average UV index in December
Grandview, MO

Average UV index in December - Grandview, 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, November and December (UV index 2).

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Average cloud cover in December
Grandview, MO

Average cloud cover in December - Grandview, MO
  • Average cloud cover in December: 41

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in December
Grandview, MO

Average visibility in December - Grandview, 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).

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Grandview, Missouri, USA

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