December weather forecast
Potosi, MO

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Weather in December

December, the first month of the winter in Potosi, is still a chilly month, with an average temperature ranging between min 30.2°F (-1°C) and max 43.3°F (6.3°C).

Temperature

The average high-temperature decreases in December, shifting from a cool 53.4°F (11.9°C) in November to a chilly 43.3°F (6.3°C). Potosi, during the month of December, experiences an average low-temperature of 30.2°F (-1°C).

Humidity

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

Rainfall

In Potosi, Missouri, in December, it is raining for 7.4 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 142.5 rainfall days, and 28.58" (726mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Potosi, Missouri, in December, during 3.6 snowfall days, 1.85" (47mm) of snow is typically accumulated. Throughout the year, in Potosi, there are 17.5 snowfall days, and 8.74" (222mm) of snow is accumulated.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year in Potosi.
On the first day of the month, sunrise is at 7:00 am and sunset at 4:44 pm. On the last day of December, in Potosi, sunrise is at 7:18 am and sunset at 4:54 pm CST.

Sunshine

In December, the average sunshine in Potosi is 4.9h.

UV index

The months with the lowest UV index in Potosi are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Potosi?

In December, the average high-temperature and low-temperature are 43.3°F (6.3°C) and 30.2°F (-1°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is evaluated at 98.6°F (37°C).

What is the average humidity in December in Potosi?

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

How many days does it rain in December in Potosi?

In December, in Potosi, the rain falls for 7.4 days. Throughout December, 2.17" (55mm) of precipitation is accumulated.

How much does it snow in Potosi in December?

In Potosi, during December, snow falls for 3.6 days and regularly aggregates up to 1.85" (47mm) of snow.

What is the month with the shortest days in Potosi?

The month with the shortest days in Potosi, Missouri, is December, with an average of 9h and 36min of daylight.

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

In December, the average day length in Potosi, Missouri, is 9h and 35min.

What time are sunrise and sunset in December in Potosi?

On the first day of December in Potosi, sunrise is at 7:00 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:54 pm CST.

How long on average sun shines in December in Potosi?

The average sunshine duration in December in Potosi, Missouri, is 4.9h.

What is the month with the lowest UV index in Potosi?

The months with the lowest UV index in Potosi are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Potosi?

In Potosi, Missouri, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Potosi, MO

Average temperature in December - Potosi, MO
  • Average high temperature in December: 43.3°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in December: 30.2°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in December
Potosi, MO

Average pressure in December - Potosi, MO
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Potosi, MO

Average wind speed in December - Potosi, MO
  • Average wind speed in December: 8.1mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in December
Potosi, MO

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

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Potosi, MO

Average rainfall in December - Potosi, MO
  • Average rainfall in December: 2.17"

The wettest month (with the highest rainfall) is May (3.03").
The driest months (with the least rainfall) are February, September and November (1.73").

Average rainfall days in December
Potosi, MO

Average rainfall days in December - Potosi, MO
  • Average rainfall days in December: 7.4 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (7.2 days).

Average snowfall in December
Potosi, MO

Average snowfall in December - Potosi, MO
  • Average snowfall in December: 1.85"

The month with the highest snowfall is February (2.8").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Potosi, MO

Average snowfall days in December - Potosi, MO
  • Average snowfall days in December: 3.6 days

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Potosi, MO

Average daylight in December / Average sunshine in December - Potosi, MO
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in December
Potosi, MO

Average sunshine days in December - Potosi, MO
  • Average sunshine days in December: 19.9 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (12.3 days).

Average UV index in December
Potosi, MO

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

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

Average cloud cover in December
Potosi, MO

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

The months with the most cloud cover are January, February and March (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in December
Potosi, MO

Average visibility in December - Potosi, MO
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).

Potosi, Missouri, USA

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