December weather forecast
Thayer, MO

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Weather in December

December, the first month of the winter in Thayer, is still a chilly month, with an average temperature varying between 32.5°F (0.3°C) and 46.8°F (8.2°C).

Temperature

The arrival of December corresponds with a reduction in the average high-temperature, down from November's refreshing 56.1°F (13.4°C) to a chilly 46.8°F (8.2°C). December witnesses an average low-temperature hovering around a wintry 32.5°F (0.3°C).

Humidity

In December, the average relative humidity is 77%.

Rainfall

In Thayer, during December, the rain falls for 9.3 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, in Thayer, there are 148 rainfall days, and 35.39" (899mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Thayer are January through April, November and December. In December, in Thayer, it is snowing for 1.6 days. Throughout December, 0.98" (25mm) of snow is accumulated. In Thayer, Missouri, during the entire year, snow falls for 8.9 days and aggregates up to 4.57" (116mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 7:00 am and sunset at 4:50 pm. On the last day of December, in Thayer, Missouri, sunrise is at 7:17 am and sunset at 5:00 pm CST.

Sunshine

In Thayer, the average sunshine in December is 5h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Thayer, Missouri. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 2 during December leads to these advisories:
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. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December in Thayer?

December temperatures in Thayer, Missouri, vary between a high-temperature of 46.8°F (8.2°C) and a low-temperature of 32.5°F (0.3°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in September is estimated at 86°F (30°C).

What is the average humidity in December in Thayer?

In December, the average relative humidity is 77%.

How many days does it rain in December in Thayer?

In December, in Thayer, Missouri, the rain falls for 9.3 days. Throughout December, 2.56" (65mm) of precipitation is accumulated.

How much does it snow in Thayer in December?

In Thayer, Missouri, during December, snow falls for 1.6 days and regularly aggregates up to 0.98" (25mm) of snow.

What is the month with the shortest days in Thayer?

The month with the shortest days in Thayer is December, with an average of 9h and 42min of daylight.

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

The average day length in December is 9h and 43min.

When is the sunrise / sunset in December in Thayer?

On the first day of December in Thayer, Missouri, sunrise is at 7:00 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:00 pm CST.

How long on average sun shines in December in Thayer?

The average sunshine duration in December in Thayer, Missouri, is 5h.

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

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

What is the UV index intensity in December in Thayer?

In December, the average daily maximum UV index in Thayer is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
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
Thayer, MO

Average temperature in December - Thayer, MO
  • Average high temperature in December: 46.8°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (43.3°F).

  • Average low temperature in December: 32.5°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in December
Thayer, MO

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Thayer, MO

Average wind speed in December - Thayer, MO
  • Average wind speed in December: 7.6mph

The windiest months (with the highest average wind speed) are January, February, March and April (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in December
Thayer, MO

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

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Thayer, MO

Average rainfall in December - Thayer, MO
  • Average rainfall in December: 2.56"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in December
Thayer, MO

Average rainfall days in December - Thayer, MO
  • Average rainfall days in December: 9.3 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in December
Thayer, MO

Average snowfall in December - Thayer, MO
  • Average snowfall in December: 0.98"

The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Thayer, MO

Average snowfall days in December - Thayer, MO
  • Average snowfall days in December: 1.6 days

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Thayer, MO
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in December
Thayer, MO

Average sunshine days in December - Thayer, MO
  • Average sunshine days in December: 19.6 days

The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in December
Thayer, MO

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

Average cloud cover in December
Thayer, MO

Average cloud cover in December - Thayer, MO
  • Average cloud cover in December: 46

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in December
Thayer, MO

Average visibility in December - Thayer, MO
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).

Thayer, Missouri, USA

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