Jefferson City
Missouri, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Jefferson City, MO

The scenic view of the State Capitol building in Jefferson City, Missouri, surrounded by a beautiful park, reflected in a pool of water nearby
The scenic view of the State Capitol building in Jefferson City, Missouri, surrounded by a beautiful park, reflected in a pool of water nearby
December, the first month of the winter, in Jefferson City, is also a wintry month, with temperature in the range of an average low of 23°F (-5°C) and an average high of 42.4°F (5.8°C).

Temperature

In Jefferson City, the average high-temperature decreases, from a mild 55.8°F (13.2°C) in November, to a wintry 42.4°F (5.8°C). In Jefferson City, the average low-temperature is 23°F (-5°C).

Rainfall

In Jefferson City, during December, the rain falls for 9 days and regularly aggregates up to 2.7" (67.8mm) of precipitation. Throughout the year, in Jefferson City, there are 109 rainfall days, and 43" (1093mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Jefferson City, in December, 3.8" (96.5mm) of snow is typically accumulated. In Jefferson City, during the entire year, snow aggregates up to 13.8" (350.5mm).

Daylight

The month with the shortest days in Jefferson City is December, with an average of 9.5h of daylight.

Sunshine

Months with the least sunshine in Jefferson City are January, November and December, with an average of 5h of sunshine.

UV index

Months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 2 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Jefferson City?

The average high-temperature, in December, in Jefferson City, is 42.4°F (5.8°C), while the average low-temperature is 23°F (-5°C).

How much does it rain in Jefferson City in December?

In Jefferson City, during December, the rain falls for 9 days and regularly aggregates up to 2.7" (67.8mm) of precipitation.

How much does it snow in Jefferson City in December?

During December, Jefferson City regularly aggregates up to 3.8" (96.5mm) of snow.

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

The month with the shortest days in Jefferson City is December, with an average of 9.5h of daylight.

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

The average length of the day in December in Jefferson City, Missouri, is 9.5h.

What is the month with the least sunshine in Jefferson City?

January, November and December, with an average of 5h of sunshine, are months with the least sunshine.

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

In December, the average sunshine in Jefferson City, Missouri, is 5h.

What is the month with the lowest UV index in Jefferson City?

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

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

In Jefferson City, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in December - Jefferson City, MO
  • Average high temperature in December: 42.5°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 (39.9°F).

  • Average low temperature in December: 23°F

The month with the highest average low temperature is July (67.2°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average rainfall in December - Jefferson City, MO
  • Average rainfall in December: 2.7"

The wettest month (with the highest rainfall) is May (5.2").
The driest month (with the lowest rainfall) is January (1.9").

Average rainfall days in December - Jefferson City, MO
  • Average rainfall days in December: 9 days

The month with the highest number of rainy days is May (12 days).
The month with the lowest number of rainy days is January (7 days).

Average snowfall in December - Jefferson City, MO
  • Average snowfall in December: 3.8"

The month with the highest snowfall is January (4.8").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average daylight in December / Average sunshine in December - Jefferson City, MO
  • Average daylight in December: 9.5h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.5h).

  • Average sunshine in December: 5h

Months with most sunshine are June and July (Average sunshine: 10h).
Months with least sunshine are January, November and December (Average sunshine: 5).

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

The month with the highest UV index is July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).