December weather forecast
Grover, MO

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Weather in December

The first month of the winter, December, is still a chilly month in Grover, Missouri, with an average temperature ranging between max 43.3°F (6.3°C) and min 30.2°F (-1°C).

Temperature

The onset of December introduces a moderate change in Grover's weather, with average high-temperatures falling from November's cool 53.8°F (12.1°C) to a chilly 43.3°F (6.3°C). During December, Grover experiences a consistent low-temperature average of 30.2°F (-1°C).

Humidity

The average relative humidity in December in Grover is 76%.

Rainfall

In December, the rain falls for 6.1 days. Throughout December, 1.42" (36mm) of precipitation is accumulated. Throughout the year, there are 134.1 rainfall days, and 23.82" (605mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Grover are January through March, November and December. The month with the most snowfall is December, when snow falls for 4.1 days and typically aggregates up to 1.3" (33mm) of snow.

Daylight

December has the shortest days of the year in Grover, with an average of 9h and 30min of daylight.
On the first day of December in Grover, sunrise is at 7:01 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:51 pm CST.

Sunshine

In Grover, the average sunshine in December is 4.8h.

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 estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

How cold is it in Grover in December?

The high-temperature, in December, in Grover, records 43.3°F (6.3°C), while the low-temperature is 30.2°F (-1°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in August is appraised at 98.6°F (37°C).

What is the average humidity in December in Grover?

In December, the average relative humidity in Grover, Missouri, is 76%.

How many days does it rain in December in Grover?

In Grover, Missouri, in December, it is raining for 6.1 days, with typically 1.42" (36mm) of accumulated precipitation.

What is the snowiest month in Grover?

December is the month with the most snowfall in Grover, Missouri. Snow falls for 4.1 days and accumulates 1.3" (33mm) of snow.

How much does it snow in Grover in December?

In Grover, Missouri, in December, during 4.1 snowfall days, 1.3" (33mm) of snow is typically accumulated.

What is the month with the shortest days in Grover?

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

How many hours of daylight does Grover have in December?

In December, the average day length in Grover, Missouri, is 9h and 32min.

When are sunrise and sunset in December in Grover?

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:51 pm CST.

How long on average sun shines in December in Grover?

In Grover, Missouri, the average sunshine duration in December is 4.8h.

When is the lowest UV index in Grover?

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

How high is the UV index in December in Grover?

In Grover, Missouri, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat from exposure to the Sun's 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
Grover, MO

Average temperature in December - Grover, MO
  • Average high temperature in December: 43.3°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in December: 30.2°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).

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Average pressure in December
Grover, MO

Average pressure in December - Grover, 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
Grover, MO

Average wind speed in December - Grover, MO
  • Average wind speed in December: 8.1mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in December
Grover, MO

Average humidity in December - Grover, 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 (71%).

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Average rainfall in December
Grover, MO

Average rainfall in December - Grover, MO
  • Average rainfall in December: 1.42"

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.1").

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Average rainfall days in December
Grover, MO

Average rainfall days in December - Grover, MO
  • Average rainfall days in December: 6.1 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (6.1 days).

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Average snowfall in December
Grover, MO

Average snowfall in December - Grover, MO
  • Average snowfall in December: 1.3"

The month with the highest snowfall is December (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Grover, MO

Average snowfall days in December - Grover, MO
  • Average snowfall days in December: 4.1 days

The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

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

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 30min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in December
Grover, MO

Average sunshine days in December - Grover, MO
  • Average sunshine days in December: 20.3 days

The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is May (12.6 days).

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Average UV index in December
Grover, MO

Average UV index in December - Grover, 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, February and December (UV index 2).

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Average cloud cover in December
Grover, MO

Average cloud cover in December - Grover, MO
  • Average cloud cover in December: 48

The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).

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Average visibility in December
Grover, MO

Average visibility in December - Grover, 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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Grover, Missouri, USA

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