December weather forecast
Frontenac, MO

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Weather in December

December, the first month of the winter in Frontenac, is also a wintry month, with an average temperature varying between 30.6°F (-0.8°C) and 42.6°F (5.9°C).

Temperature

As November transitions into December, Frontenac sees a drop in the average high-temperature, transitioning from a fresh 53.4°F (11.9°C) to a cold 42.6°F (5.9°C). Frontenac experiences a consistent average temperature of 30.6°F (-0.8°C) throughout the nights in December.

Humidity

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

Rainfall

In Frontenac, in December, it is raining for 7.5 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, there are 144.8 rainfall days, and 30.59" (777mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Frontenac, in December, snow falls for 3.1 days, with typically accumulated 1.85" (47mm) of snow. Throughout the year, in Frontenac, there are 16.2 snowfall days, and 8.19" (208mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 30min of daylight.
On the first day of December, sunrise is at 7:01 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:50 pm CST.

Sunshine

In Frontenac, the average sunshine in December is 4.9h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Frontenac, Missouri. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 2 in December interprets into the following advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

How cold is it in Frontenac in December?

The average high-temperature, in December, in Frontenac, is 42.6°F (5.9°C), while the average low-temperature is 30.6°F (-0.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 95°F (35°C).

What is the average humidity in December in Frontenac?

The average relative humidity in December is 76%.

How much does it rain in Frontenac in December?

In Frontenac, in December, during 7.5 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

How much does it snow in Frontenac in December?

In Frontenac, Missouri, during December, snow falls for 3.1 days and regularly aggregates up to 1.85" (47mm) of snow.

What is the month with the shortest days in Frontenac?

December has the shortest days of the year in Frontenac, Missouri, with an average of 9h and 30min of daylight.

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

The average day length in December is 9h and 31min.

When are sunrise and sunset in December in Frontenac?

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:40 pm. On the last day of the month, in Frontenac, sunrise is at 7:19 am and sunset at 4:50 pm CST.

How long on average sun shines in December in Frontenac?

In December, the average sunshine duration in Frontenac is 4.9h.

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

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

What is the UV index reading in December in Frontenac?

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

Average temperature in December - Frontenac, MO
  • Average high temperature in December: 42.6°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in December
Frontenac, MO

Average pressure in December - Frontenac, 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 (29.92"Hg).

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Average wind speed in December
Frontenac, MO

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

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in December
Frontenac, MO

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

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in December
Frontenac, MO

Average rainfall in December - Frontenac, MO
  • Average rainfall in December: 2.05"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").

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Average rainfall days in December
Frontenac, MO

Average rainfall days in December - Frontenac, MO
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).

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Average snowfall in December
Frontenac, MO

Average snowfall in December - Frontenac, MO
  • Average snowfall in December: 1.85"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Frontenac, MO

Average snowfall days in December - Frontenac, MO
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Frontenac, MO
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 4h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in December
Frontenac, MO

Average sunshine days in December - Frontenac, MO
  • Average sunshine days in December: 19.9 days

The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).

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Average UV index in December
Frontenac, MO

Average UV index in December - Frontenac, 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).

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Average cloud cover in December
Frontenac, MO

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

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in December
Frontenac, MO

Average visibility in December - Frontenac, 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).

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Frontenac, Missouri, USA

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