December weather forecast
Jefferson City, MO

The State Capitol building surrounded by a beautiful park in Jefferson City, Missouri
The State Capitol building surrounded by a beautiful park in Jefferson City, Missouri

Weather in December

December, the first month of the winter in Jefferson City, is also a frosty month, with an average temperature ranging between min 29.1°F (-1.6°C) and max 42.8°F (6°C).

Temperature

In Jefferson City, the average high-temperature in December drops from a fresh 53.8°F (12.1°C) in November to a chilly 42.8°F (6°C). In December, in Jefferson City, the average low-temperature is 29.1°F (-1.6°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Jefferson City, during 4.6 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. In Jefferson City, during the entire year, the rain falls for 93.7 days and collects up to 9.29" (236mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Jefferson City, snow falls for 2.8 days, with typically accumulated 0.43" (11mm) of snow. In Jefferson City, during the entire year, snow falls for 14.9 days and aggregates up to 2.13" (54mm) of snow.

Daylight

With an average of 9h and 32min of daylight, December has the shortest days of the year in Jefferson City.
On the first day of December, sunrise is at 7:07 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:57 pm CST.

Sunshine

The average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Jefferson City?

In December, in Jefferson City, the average high-temperature is 42.8°F (6°C), and the average low-temperature is 29.1°F (-1.6°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in August is calculated to be 100.4°F (38°C).

What is the average humidity in December in Jefferson City?

In December, the average relative humidity in Jefferson City is 76%.

How many days does it rain in December in Jefferson City?

In December, in Jefferson City, the rain falls for 4.6 days. Throughout December, 0.51" (13mm) of precipitation is accumulated.

How much does it snow in Jefferson City in December?

In December, it is snowing for 2.8 days. Throughout December, 0.43" (11mm) of snow is accumulated.

What is the month with the shortest days in Jefferson City?

December has the shortest days of the year in Jefferson City, Missouri, with an average of 9h and 32min of daylight.

How many hours of daylight does Jefferson City have in December?

The average day length in December in Jefferson City is 9h and 32min.

When are sunrise and sunset in December in Jefferson City?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 4:48 pm. On the last day of the month, in Jefferson City, sunrise is at 7:26 am and sunset at 4:57 pm CST.

How long on average sun shines in December in Jefferson City?

The average sunshine duration in December in Jefferson City is 5.1h.

What are the months with the lowest UV index in Jefferson City?

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

What is the UV index reading in December in Jefferson City?

The average daily maximum UV index in December in Jefferson City, Missouri, is 2. A UV Index reading of 2, and below, represents 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
Jefferson City, MO

Average temperature in December - Jefferson City, MO
  • Average high temperature in December: 42.8°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in December: 29.1°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in December
Jefferson City, MO

Average pressure in December - Jefferson City, 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
Jefferson City, MO

Average wind speed in December - Jefferson City, MO
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in December
Jefferson City, MO

Average humidity in December - Jefferson City, MO
  • Average humidity in December: 76%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Jefferson City, MO

Average rainfall in December - Jefferson City, MO
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is May (1.3").
The driest month (with the least rainfall) is November (0.47").

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Average rainfall days in December
Jefferson City, MO

Average rainfall days in December - Jefferson City, MO
  • Average rainfall days in December: 4.6 days

The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is January (4 days).

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Average snowfall in December
Jefferson City, MO

Average snowfall in December - Jefferson City, MO
  • Average snowfall in December: 0.43"

The month with the highest snowfall is January (0.71").
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
Jefferson City, MO

Average snowfall days in December - Jefferson City, MO
  • Average snowfall days in December: 2.8 days

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

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Average daylight in December /
Average sunshine in December
Jefferson City, MO

Average daylight in December / Average sunshine in December - Jefferson City, MO
  • Average daylight in December: 9h and 32min

The month with the longest days is June (Average daylight: 14h and 49min).
The month with the shortest days is December (Average daylight: 9h and 32min).

  • Average sunshine in December: 5h and 6min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in December
Jefferson City, MO

Average sunshine days in December - Jefferson City, MO
  • Average sunshine days in December: 23.7 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is May (16.7 days).

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Average UV index in December
Jefferson City, MO

Average UV index in December - Jefferson City, MO
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Jefferson City, MO

Average cloud cover in December - Jefferson City, MO
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 28).

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Average visibility in December
Jefferson City, MO

Average visibility in December - Jefferson City, 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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