December weather forecast
Mosby, MO

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Weather in December

The first month of the winter, December, is also an icy month in Mosby, Missouri, with an average temperature fluctuating between 26.8°F (-2.9°C) and 39.9°F (4.4°C).

Temperature

As December begins, there is a decrease in the average high-temperature, falling from a cool 51.8°F (11°C) in November to an icy 39.9°F (4.4°C). The nights of December in Mosby anticipate an average low-temperature of 26.8°F (-2.9°C).

Humidity

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

Rainfall

In Mosby, during December, the rain falls for 5.8 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 138.2 rainfall days, and 27.72" (704mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Mosby, in December, during 4.5 snowfall days, 1.34" (34mm) of snow is typically accumulated. In Mosby, during the entire year, snow falls for 22.8 days and aggregates up to 10" (254mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:54 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:04 pm CST.

Sunshine

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

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mosby. 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: In December, a daily UV index of 2 turns into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold in Mosby?

The high-temperature, in December, in Mosby, records 39.9°F (4.4°C), while the low-temperature is 26.8°F (-2.9°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is computed to be 93.2°F (34°C).

What is the average humidity in December in Mosby?

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

How much does it rain in Mosby in December?

In December, in Mosby, the rain falls for 5.8 days. Throughout December, 1.34" (34mm) of precipitation is accumulated.

How many days does it snow in December in Mosby?

In December, in Mosby, it is snowing for 4.5 days. Throughout December, 1.34" (34mm) of snow is accumulated.

What is the month with the shortest days in Mosby?

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

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

In December, the average day length in Mosby is 9h and 27min.

What time are sunrise and sunset in December in Mosby?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 4:54 pm. On the last day of the month, in Mosby, Missouri, sunrise is at 7:36 am and sunset at 5:04 pm CST.

How many hours of sunshine does Mosby have in December?

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

When is the lowest UV index in Mosby?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Mosby, Missouri.

What is the UV index reading in December in Mosby?

In Mosby, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Mosby, MO

Average temperature in December - Mosby, MO
  • Average high temperature in December: 39.9°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in December: 26.8°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Mosby, MO

Average pressure in December - Mosby, 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).

Average wind speed in December
Mosby, MO

Average wind speed in December - Mosby, MO
  • Average wind speed in December: 8.9mph

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

Average humidity in December
Mosby, MO

Average humidity in December - Mosby, MO
  • Average humidity in December: 76%

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are October and November (71%).

Average rainfall in December
Mosby, MO

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

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days in December
Mosby, MO

Average rainfall days in December - Mosby, MO
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in December
Mosby, MO

Average snowfall in December - Mosby, MO
  • Average snowfall in December: 1.34"

The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Mosby, MO

Average snowfall days in December - Mosby, MO
  • Average snowfall days in December: 4.5 days

The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Mosby, 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 18min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in December
Mosby, MO

Average sunshine days in December - Mosby, MO
  • Average sunshine days in December: 21 days

The month with the most sunshine days is December (21 days).
The month with the least sunshine days is June (10.7 days).

Average UV index in December
Mosby, MO

Average UV index in December - Mosby, 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).

Average cloud cover in December
Mosby, MO

Average cloud cover in December - Mosby, 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 July (Cloud cover 26).

Average visibility in December
Mosby, MO

Average visibility in December - Mosby, 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).

Mosby, Missouri, USA

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