December weather forecast and climate
Piedmont, MO

The first month of the winter, December, is also a frosty month in Piedmont, Missouri, with average temperature fluctuating between 32°F (0°C) and 45.3°F (7.4°C).

Temperature

In Piedmont, the average high-temperature drops, from a cool 55°F (12.8°C) in November, to a frosty 45.3°F (7.4°C). In Piedmont, the average low-temperature is 32°F (0°C).

Humidity

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

Rainfall

September and December are months with the least rain when the rain falls for 8.1 days and typically aggregates up to 1.26" (32mm) of rain.

Snowfall

Months with snowfall in Piedmont, Missouri, are January through March, November and December. In December, in Piedmont, Missouri, it is snowing for 1.8 days. Throughout December, 1.02" (26mm) of snow is accumulated. In Piedmont, during the entire year, snow falls for 11.9 days, and aggregates up to 4.72" (120mm) of snow.

Daylight

With an average of 9.6h of daylight, December has the shortest days of the year.

Sunshine

The average sunshine in December is 5.1h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 2 interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Piedmont?

In December, in Piedmont, the average high-temperature is 45.3°F (7.4°C), and the average low-temperature is 32°F (0°C).

What is the average humidity in December in Piedmont?

The average relative humidity in December in Piedmont, Missouri, is 77%.

How many days does it rain in December in Piedmont?

In Piedmont, during December, the rain falls for 8.1 days and regularly aggregates up to 1.26" (32mm) of precipitation.

What is the driest month in Piedmont?

September and December are months with the least rain in Piedmont, Missouri, when the rain falls for 8.1 days and typically aggregates up to 1.26" (32mm) of rain.

How much does it snow in Piedmont in December?

In Piedmont, Missouri, during December, snow falls for 1.8 days and regularly aggregates up to 1.02" (26mm) of snow.

What is the month with the shortest days in Piedmont?

December has the shortest days of the year in Piedmont, Missouri, with an average of 9.6h of daylight.

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

In Piedmont, Missouri, the average length of the day in December is 9.6h.

How many hours of sunshine does Piedmont have in December?

The average sunshine in December in Piedmont, Missouri, is 5.1h.

When is the lowest UV index in Piedmont?

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

What is the UV index reading in December in Piedmont?

In Piedmont, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in December - Piedmont, MO
  • Average high temperature in December: 7.4°C

The warmest month (with the highest average high temperature) is July (31.9°C).
The month with the lowest average high temperature is January (5.3°C).

  • Average low temperature in December: 0°C

The month with the highest average low temperature is July (20.2°C).
The coldest month (with the lowest average low temperature) is January (-2.7°C).

Average pressure in December - Piedmont, MO
  • Average pressure in December: 1020.5mbar

The month with the highest atmospheric pressure is January (1021.4mbar).
The month with the lowest atmospheric pressure is June (1013.5mbar).

Average wind speed in December - Piedmont, MO
  • Average wind speed in December: 11.8km/h

The windiest month (with the highest average wind speed) is January (12.8km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).

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

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December - Piedmont, MO
  • Average rainfall in December: 32mm

The wettest month (with the highest rainfall) is April (77mm).
The driest months (with the least rainfall) are September and December (32mm).

Average rainfall days in December - Piedmont, MO
  • Average rainfall days in December: 8.1 days

The month with the highest number of rainy days is July (15.7 days).
Months with the least rainy days are January and December (8.1 days).

Average snowfall in December - Piedmont, MO
  • Average snowfall in December: 26mm

The month with the highest snowfall is February (42mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December - Piedmont, MO
  • Average snowfall days in December: 1.8 days

The month with the highest number of snowfall days is January (3.8 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Piedmont, MO
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 5.1h

The month with the most sunshine is June (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.9h).

Average sunshine days in December - Piedmont, MO
  • Average sunshine days in December: 20.3 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (12 days).

Average UV index in December - Piedmont, MO
  • Average UV index in December: 2

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

Average cloud cover in December - Piedmont, MO
  • Average cloud cover in December: 45

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 28).

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

Months with the highest visibility are January, February, March, April, June, September, October, November and December (9km).
Months with the lowest visibility are May, July and August (8km).