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

January 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
January, the same as December, is another cold winter month in Jefferson City, Missouri, with average temperature fluctuating between 24.3°F (-4.3°C) and 38.5°F (3.6°C).

Temperature

With an average high-temperature of 38.5°F (3.6°C) and an average low-temperature of 24.3°F (-4.3°C), January is the coldest month.

Humidity

In January, the average relative humidity is 75%.

Rainfall

In Jefferson City, during January, the rain falls for 4 days and regularly aggregates up to 0.51" (13mm) of precipitation. Throughout the year, there are 93.7 rainfall days, and 9.29" (236mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Jefferson City are January through March, November and December. January is the month with the most snowfall in Jefferson City. Snow falls for 5.2 days and accumulates 0.71" (18mm) of snow.

Daylight

In Jefferson City, the average length of the day is 9.8h.

Sunshine

The average sunshine in January is 4.9h.

UV index

Months with the lowest UV index in Jefferson City, Missouri, are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 2 in January transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Jefferson City?

January is the coldest month in Jefferson City, Missouri, with an average high-temperature of 38.5°F (3.6°C) and an average low-temperature of 24.3°F (-4.3°C).

What is the temperature in January in Jefferson City?

In January, the average high-temperature is 38.5°F (3.6°C), and the average low-temperature is 24.3°F (-4.3°C).

What is the average humidity in January in Jefferson City?

In Jefferson City, Missouri, the average relative humidity in January is 75%.

How much does it rain in Jefferson City in January?

In Jefferson City, in January, it is raining for 4 days, with typically 0.51" (13mm) of accumulated precipitation.

How much does it snow in Jefferson City in January?

In January, it is snowing for 5.2 days. Throughout January, 0.71" (18mm) of snow is accumulated.

When does it snow the most in Jefferson City?

The month with the most snowfall in Jefferson City is January when snow falls for 5.2 days and typically aggregates up to 0.71" (18mm) of snow.

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

The average length of the day in January in Jefferson City is 9.8h.

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

In Jefferson City, Missouri, the average sunshine in January is 4.9h.

When is the lowest UV index in Jefferson City?

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

How high is the UV index in January in Jefferson City?

The average daily maximum UV index in January in Jefferson City is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to the Sun's UV rays.
Average temperature in January - Jefferson City, MO
  • Average high temperature in January: 3.6°C

The warmest month (with the highest average high temperature) is July (31.8°C).
The month with the lowest average high temperature is January (3.6°C).

  • Average low temperature in January: -4.3°C

The month with the highest average low temperature is July (19.9°C).
The coldest month (with the lowest average low temperature) is January (-4.3°C).

Average humidity in January - Jefferson City, MO
  • Average humidity in January: 75%

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

Average rainfall in January - Jefferson City, MO
  • Average rainfall in January: 13mm

The wettest month (with the highest rainfall) is May (33mm).
The driest month (with the lowest rainfall) is November (12mm).

Average rainfall days in January - Jefferson City, MO
  • Average rainfall days in January: 4 days

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

Average snowfall in January - Jefferson City, MO
  • Average snowfall in January: 18mm

The month with the highest snowfall is January (18mm).
Months with the lowest snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in January - Jefferson City, MO
  • Average snowfall days in January: 5.2 days

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

Average daylight in January / Average sunshine in January - Jefferson City, MO
  • Average daylight in January: 9.8h

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 January: 4.9h

The month with most sunshine is June (Average sunshine: 10.6h).
The month with least sunshine is February (Average sunshine: 4.8h).

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

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