December weather forecast
Coatsville, MO

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Weather in December

The first month of the winter, December, is also an icy month in Coatsville, Missouri, with an average temperature fluctuating between 35.8°F (2.1°C) and 23.9°F (-4.5°C).

Temperature

Coatsville's December weather shows a moderate shift in high-temperatures, falling from November's chilly 48.4°F (9.1°C) to an icy 35.8°F (2.1°C). In the month of December, the average temperature in Coatsville dips to a subzero cold 23.9°F (-4.5°C) during the night.

Humidity

In Coatsville, the average relative humidity in December is 79%.

Rainfall

In Coatsville, Missouri, in December, during 7 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Coatsville, during the entire year, the rain falls for 143.2 days and collects up to 27.48" (698mm) of precipitation.

Snowfall

Months with snowfall in Coatsville are January through May, October through December. In December, it is snowing for 7.2 days. Throughout December, 1.57" (40mm) of snow is accumulated. In Coatsville, during the entire year, snow falls for 33.2 days and aggregates up to 15.31" (389mm) of snow.

Daylight

The month with the shortest days in Coatsville, Missouri, is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:15 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:53 pm CST.

Sunshine

The average sunshine in December in Coatsville is 4.8h.

UV index

The average daily maximum UV index in December in Coatsville, Missouri, is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In December, the UV index of 2 transforms into the following advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Coatsville?

Coatsville in December has an average high-temperature of 35.8°F (2.1°C) and an average low-temperature of 23.9°F (-4.5°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in August is computed to be 87.8°F (31°C).

What is the average humidity in December in Coatsville?

The average relative humidity in December in Coatsville is 79%.

How many days does it rain in December in Coatsville?

In December, the rain falls for 7 days. Throughout December, 1.22" (31mm) of precipitation is accumulated.

How much does it snow in Coatsville in December?

In Coatsville, during December, snow falls for 7.2 days and regularly aggregates up to 1.57" (40mm) of snow.

What is the month with the shortest days in Coatsville?

The month with the shortest days in Coatsville is December, with an average of 9h and 18min of daylight.

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

In Coatsville, the average day length in December is 9h and 20min.

When are sunrise and sunset in December in Coatsville?

On the first day of December in Coatsville, sunrise is at 7:15 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:53 pm CST.

How many hours of sunshine does Coatsville have in December?

In December, the average sunshine duration is 4.8h.

What is the UV index intensity in December in Coatsville?

The average daily maximum UV index in December in Coatsville is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Coatsville, MO

Average temperature in December - Coatsville, MO
  • Average high temperature in December: 35.8°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in December: 23.9°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in December
Coatsville, MO

Average pressure in December - Coatsville, MO
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Coatsville, MO

Average wind speed in December - Coatsville, MO
  • Average wind speed in December: 10.1mph

The windiest months (with the highest average wind speed) are January, February and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in December
Coatsville, MO

Average humidity in December - Coatsville, MO
  • Average humidity in December: 79%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Coatsville, MO

Average rainfall in December - Coatsville, MO
  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days in December
Coatsville, MO

Average rainfall days in December - Coatsville, MO
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5 days).

Average snowfall in December
Coatsville, MO

Average snowfall in December - Coatsville, MO
  • Average snowfall in December: 1.57"

The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Coatsville, MO

Average snowfall days in December - Coatsville, MO
  • Average snowfall days in December: 7.2 days

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • 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 18min).

Average sunshine days in December
Coatsville, MO

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

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.8 days).

Average UV index in December
Coatsville, MO

Average UV index in December - Coatsville, MO
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December
Coatsville, MO

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

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).

Average visibility in December
Coatsville, MO

Average visibility in December - Coatsville, 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).

Coatsville, Missouri, USA

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