December weather forecast and climate
Monticello, MO

December, the first month of the winter, in Monticello, is also a wintry month, with average temperature varying between 38.7°F (3.7°C) and 26.6°F (-3°C).

Temperature

In December, the average high-temperature drops, from a cool 50.4°F (10.2°C) in November, to a cold 38.7°F (3.7°C). In December, in Monticello, the average low-temperature is 26.6°F (-3°C).

Humidity

In December, the average relative humidity in Monticello is 77%.

Rainfall

In December, in Monticello, the rain falls for 6.5 days. Throughout December, 1.42" (36mm) of precipitation is accumulated. In Monticello, during the entire year, the rain falls for 137.5 days and collects up to 27.68" (703mm) of precipitation.

Snowfall

Months with snowfall in Monticello are January through April, October through December. In December, it is snowing for 5.3 days. Throughout December, 2.05" (52mm) of snow is accumulated. In Monticello, Missouri, during the entire year, snow falls for 28.4 days, and aggregates up to 12.44" (316mm) of snow.

Daylight

The month with the shortest days in Monticello, Missouri, is December, with an average of 9.4h of daylight.

Sunshine

The average sunshine in December is 4.9h.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 2 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. 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 Monticello?

The average high-temperature, in December, in Monticello, Missouri, is 38.7°F (3.7°C), while the average low-temperature is 26.6°F (-3°C).

What is the average humidity in December in Monticello?

The average relative humidity in December in Monticello is 77%.

How much does it rain in Monticello in December?

In December, in Monticello, Missouri, the rain falls for 6.5 days. Throughout December, 1.42" (36mm) of precipitation is accumulated.

How many days does it snow in December in Monticello?

In Monticello, Missouri, in December, during 5.3 snowfall days, 2.05" (52mm) of snow is typically accumulated.

What is the month with the shortest days in Monticello?

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

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

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

How many hours of sunshine does Monticello have in December?

The average sunshine in December is 4.9h.

What are the months with the lowest UV index in Monticello?

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

What is the UV index reading in December in Monticello?

The average daily maximum UV index in December in Monticello 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 December - Monticello, MO
  • Average high temperature in December: 3.7°C

The warmest month (with the highest average high temperature) is July (29.2°C).
The month with the lowest average high temperature is January (0.3°C).

  • Average low temperature in December: -3°C

The month with the highest average low temperature is July (19.2°C).
The coldest month (with the lowest average low temperature) is January (-6.6°C).

Average pressure in December - Monticello, MO
  • Average pressure in December: 1020mbar

The month with the highest atmospheric pressure is January (1021.1mbar).
The month with the lowest atmospheric pressure is June (1012.6mbar).

Average wind speed in December - Monticello, MO
  • Average wind speed in December: 15.6km/h

The windiest months (with the highest average wind speed) are January and February (16.4km/h).
The calmest month (with the lowest average wind speed) is July (10.5km/h).

Average humidity in December - Monticello, MO
  • Average humidity in December: 77%

Months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December - Monticello, MO
  • Average rainfall in December: 36mm

The wettest month (with the highest rainfall) is May (99mm).
The driest month (with the least rainfall) is January (32mm).

Average rainfall days in December - Monticello, MO
  • Average rainfall days in December: 6.5 days

Months with the highest number of rainy days are May and June (17.3 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in December - Monticello, MO
  • Average snowfall in December: 52mm

The month with the highest snowfall is January (107mm).
Months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December - Monticello, MO
  • Average snowfall days in December: 5.3 days

The month with the highest number of snowfall days is January (9.3 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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

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

  • Average sunshine in December: 4.9h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.4h).

Average sunshine days in December - Monticello, MO
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (10.1 days).

Average UV index in December - Monticello, MO
  • Average UV index in December: 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).

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

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in December - Monticello, MO
  • Average visibility in December: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).