December weather forecast
Commerce, MO

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Weather in December

The first month of the winter, December, is still a chilly month in Commerce, Missouri, with an average temperature fluctuating between 33.1°F (0.6°C) and 45.5°F (7.5°C).

Temperature

The shift from November to December involves a decrease in the average high-temperature, from a fresh 54.7°F (12.6°C) to a chilly 45.5°F (7.5°C). Nighttime temperatures in December average to a wintry 33.1°F (0.6°C).

Humidity

The average relative humidity in December in Commerce is 77%.

Rainfall

In Commerce, in December, during 10.8 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, there are 158.6 rainfall days, and 35.59" (904mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In December, in Commerce, it is snowing for 1.6 days. Throughout December, 0.67" (17mm) of snow is accumulated. In Commerce, during the entire year, snow falls for 11.2 days and aggregates up to 4.92" (125mm) of snow.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:53 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:11 am and sunset at 4:50 pm CST.

Sunshine

The average sunshine in December is 5h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature?

The average high-temperature and low-temperature during December are 45.5°F (7.5°C) and 33.1°F (0.6°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

How much does it rain in December?

In December, in Commerce, the rain falls for 10.8 days. Throughout December, 2.44" (62mm) of precipitation is accumulated.

How many days does it snow in December in Commerce?

In Commerce, Missouri, in December, snow falls for 1.6 days, with typically accumulated 0.67" (17mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

In December, the average day length is 9h and 40min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:53 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:50 pm CST.

How many hours of sunshine does Commerce have in December?

In December, the average sunshine duration is 5h.

When is the lowest UV index?

January, February 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 Commerce, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe 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
Commerce, MO

Average temperature in December - Commerce, MO
  • Average high temperature in December: 45.5°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in December: 33.1°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure in December
Commerce, MO

Average pressure in December - Commerce, 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 (29.94"Hg).

Average wind speed in December
Commerce, MO

Average wind speed in December - Commerce, MO
  • Average wind speed in December: 8.6mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in December
Commerce, MO

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

The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (69%).

Average rainfall in December
Commerce, MO

Average rainfall in December - Commerce, MO
  • Average rainfall in December: 2.44"

The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in December
Commerce, MO

Average rainfall days in December - Commerce, MO
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in December
Commerce, MO

Average snowfall in December - Commerce, MO
  • Average snowfall in December: 0.67"

The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Commerce, MO

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

The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 42min).
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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in December
Commerce, MO

Average sunshine days in December - Commerce, MO
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (11.9 days).

Average UV index in December
Commerce, MO

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

Average cloud cover in December
Commerce, MO

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

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, August and September (Cloud cover 27).

Average visibility in December
Commerce, MO

Average visibility in December - Commerce, 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).

Commerce, Missouri, USA

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