Saint Joseph
Missouri, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Saint Joseph, MO

December, the first month of the winter, in Saint Joseph, is still a cold month, with average temperature ranging between max 38.7°F (3.7°C) and min 19.6°F (-6.9°C).

Temperature

In Saint Joseph, the average high-temperature significantly decreases, from a cool 53.2°F (11.8°C) in November, to a wintry 38.7°F (3.7°C). In December, in Saint Joseph, the average low-temperature is 19.6°F (-6.9°C).

Rainfall

In Saint Joseph, it is raining for 7 days, with typically 1.4" (35.8mm) of accumulated precipitation. Throughout the year, in Saint Joseph, there are 102 rainfall days, and 34.3" (870.6mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Saint Joseph are January through April, October through December. In Saint Joseph, Missouri, 3.5" (88.9mm) of snow is typically accumulated. In Saint Joseph, during the entire year, snow aggregates up to 12.3" (312.4mm).

Daylight

December has the shortest days of the year, with an average of 9.4h of daylight.

Sunshine

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

UV index

Months with the lowest UV index in Saint Joseph are January, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Saint Joseph?

In Saint Joseph, Missouri, in December, the average high-temperature is 38.7°F (3.7°C), and the average low-temperature is 19.6°F (-6.9°C).

How much does it rain in Saint Joseph in December?

In Saint Joseph, in December, it is raining for 7 days, with typically 1.4" (35.8mm) of accumulated precipitation.

How much does it snow in Saint Joseph in December?

In Saint Joseph, in December, 3.5" (88.9mm) of snow is typically accumulated.

What is the month with the shortest days in Saint Joseph?

With an average of 9.4h of daylight, December has the shortest days of the year in Saint Joseph, Missouri.

How many hours of daylight does Saint Joseph have in December?

In December, the average length of the day is 9.4h.

What is the month with the least sunshine in Saint Joseph?

November and December, with an average of 5h of sunshine, are months with the least sunshine in Saint Joseph, Missouri.

How long on average sun shines in December in Saint Joseph?

In December, the average sunshine in Saint Joseph is 5h.

What are the months with the lowest UV index in Saint Joseph?

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

What is the UV index intensity in December in Saint Joseph?

In December, the average daily maximum UV index in Saint Joseph, Missouri, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in December - Saint Joseph, MO
  • Average high temperature in December: 38.7°F

The warmest month (with the highest average high temperature) is July (88.6°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in December: 19.5°F

The month with the highest average low temperature is July (67.9°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).

Average rainfall in December - Saint Joseph, MO
  • Average rainfall in December: 1.4"

The wettest month (with the highest rainfall) is May (4.9").
The driest month (with the lowest rainfall) is January (0.6").

Average rainfall days in December - Saint Joseph, MO
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is May (11 days).
Months with the lowest number of rainy days are January, February, November and December (7 days).

Average snowfall in December - Saint Joseph, MO
  • Average snowfall in December: 3.5"

The month with the highest snowfall is January (4").
Months with the lowest snowfall are May, June, July, August and September (0").

Average daylight in December / Average sunshine in December - Saint Joseph, MO
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 5h

The month with most sunshine is July (Average sunshine: 11h).
Months with least sunshine are November and December (Average sunshine: 5).

Average UV index in December - Saint Joseph, 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, November and December (UV index 2).