December weather forecast
Keytesville, MO

Share

Weather in December

December, the first month of the winter in Keytesville, is also a wintry month, with an average temperature ranging between min 27°F (-2.8°C) and max 40.1°F (4.5°C).

Temperature

December's onset brings a reduction in the average high-temperature, from a fresh 52°F (11.1°C) in November to a cold 40.1°F (4.5°C). Throughout the month of December, Keytesville witnesses an average low-temperature of 27°F (-2.8°C).

Humidity

The average relative humidity in December is 77%.

Rainfall

In Keytesville, in December, during 5.5 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, there are 134.1 rainfall days, and 28.62" (727mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Keytesville, during December, snow falls for 2.9 days and regularly aggregates up to 1.14" (29mm) of snow. Throughout the year, in Keytesville, there are 18.1 snowfall days, and 9.76" (248mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:13 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:58 pm CST.

Sunshine

The average sunshine in December is 5.1h.

UV index

The months with the lowest UV index in Keytesville are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
[Resources]

Frequently asked questions

Is it cold in Keytesville during December?

In Keytesville, 40.1°F (4.5°C) is the average high-temperature and 27°F (-2.8°C) is the average low-temperature during December. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in August is evaluated at 93.2°F (34°C).

What is the average humidity in December in Keytesville?

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

How much does it rain in Keytesville in December?

In Keytesville, Missouri, in December, it is raining for 5.5 days, with typically 1.34" (34mm) of accumulated precipitation.

How much does it snow in Keytesville in December?

In Keytesville, in December, during 2.9 snowfall days, 1.14" (29mm) of snow is typically accumulated.

What is the month with the shortest days in Keytesville?

December has the shortest days of the year in Keytesville, Missouri, with an average of 9h and 24min of daylight.

How many hours of daylight does Keytesville have in December?

In December, the average day length in Keytesville is 9h and 26min.

When is the sunrise / sunset in December in Keytesville?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:58 pm CST.

How many hours of sunshine does Keytesville have in December?

The average sunshine duration in December in Keytesville is 5.1h.

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

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 Keytesville?

The average daily maximum UV index in December in Keytesville is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Keytesville, MO

Average temperature in December - Keytesville, MO
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in December: 27°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

[Resources]

Average pressure in December
Keytesville, MO

Average pressure in December - Keytesville, 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 (29.91"Hg).

[Resources]

Average wind speed in December
Keytesville, MO

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

The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

[Resources]

Average humidity in December
Keytesville, MO

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

The months with the highest relative humidity are May, June and July (79%).
The month with the lowest relative humidity is October (71%).

[Resources]

Average rainfall in December
Keytesville, MO

Average rainfall in December - Keytesville, MO
  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is January (1.18").

[Resources]

Average rainfall days in December
Keytesville, MO

Average rainfall days in December - Keytesville, MO
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (5.2 days).

[Resources]

Average snowfall in December
Keytesville, MO

Average snowfall in December - Keytesville, MO
  • Average snowfall in December: 1.14"

The month with the highest snowfall is February (3.35").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in December
Keytesville, MO

Average snowfall days in December - Keytesville, MO
  • Average snowfall days in December: 2.9 days

The month with the highest number of snowfall days is February (5.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

Average daylight in December / Average sunshine in December - Keytesville, MO
  • Average daylight in December: 9h and 2min

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 24min).

  • Average sunshine in December: 5h and 1min

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 42min).

[Resources]

Average sunshine days in December
Keytesville, MO

Average sunshine days in December - Keytesville, MO
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is May (11.6 days).

[Resources]

Average UV index in December
Keytesville, MO

Average UV index in December - Keytesville, 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).

[Resources]

Average cloud cover in December
Keytesville, MO

Average cloud cover in December - Keytesville, MO
  • Average cloud cover in December: 45

The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 28).

[Resources]

Average visibility in December
Keytesville, MO

Average visibility in December - Keytesville, 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).

[Resources]

Keytesville, Missouri, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location