December weather forecast
Polo, MO

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Weather in December

December, the first month of the winter in Polo, is also a wintry month, with an average temperature fluctuating between 26.6°F (-3°C) and 39°F (3.9°C).

Temperature

In December, the average high-temperature goes from a fresh 51.1°F (10.6°C) in November to a wintry 39°F (3.9°C). Throughout December, Polo's nights cool down to an average of 26.6°F (-3°C).

Humidity

In Polo, the average relative humidity in December is 76%.

Rainfall

In Polo, during December, the rain falls for 6.1 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, there are 133.9 rainfall days, and 27.64" (702mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Polo, in December, during 3.9 snowfall days, 1.02" (26mm) of snow is typically accumulated. In Polo, during the entire year, snow falls for 21.6 days and aggregates up to 9.21" (234mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:02 pm CST.

Sunshine

In Polo, the average sunshine in December is 5.2h.

UV index

The months with the lowest UV index in Polo are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold?

Polo in December has an average high-temperature of 39°F (3.9°C) and an average low-temperature of 26.6°F (-3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in August is estimated at 91.4°F (33°C).

What is the average humidity in December?

In Polo, the average relative humidity in December is 76%.

How many days does it rain in December?

In Polo, in December, during 6.1 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

How much does it snow in December?

In Polo, during December, snow falls for 3.9 days and regularly aggregates up to 1.02" (26mm) of snow.

What is the month with the shortest days in Polo?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

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

In December, the average day length is 9h and 26min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:02 pm CST.

How many hours of sunshine does Polo have in December?

In Polo, the average sunshine duration in December is 5.2h.

When is the lowest UV index?

The 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 intensity in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
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
Polo, MO

Average temperature in December - Polo, MO
  • Average high temperature in December: 39°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in December: 26.6°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in December
Polo, MO

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Polo, MO

Average wind speed in December - Polo, MO
  • Average wind speed in December: 9mph

The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in December
Polo, MO

Average humidity in December - Polo, MO
  • Average humidity in December: 76%

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are October and November (71%).

Average rainfall in December
Polo, MO

Average rainfall in December - Polo, MO
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is February (0.94").

Average rainfall days in December
Polo, MO

Average rainfall days in December - Polo, MO
  • Average rainfall days in December: 6.1 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in December
Polo, MO

Average snowfall in December - Polo, MO
  • Average snowfall in December: 1.02"

The month with the highest snowfall is January (2.91").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Polo, MO

Average snowfall days in December - Polo, MO
  • Average snowfall days in December: 3.9 days

The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Polo, MO
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in December
Polo, MO

Average sunshine days in December - Polo, MO
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is May (11.7 days).

Average UV index in December
Polo, MO

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

The months with the highest UV index are 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
Polo, MO

Average cloud cover in December - Polo, MO
  • Average cloud cover in December: 43

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in December
Polo, MO

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

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

Polo, Missouri, USA

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