December weather forecast
Colome, SD

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Weather in December

December, the first month of the winter in Colome, is still a freezing cold month, with an average temperature ranging between max 31.1°F (-0.5°C) and min 18.3°F (-7.6°C).

Temperature

December's arrival signals a distinct temperature shift, dropping from a chilly 46.6°F (8.1°C) in November to a subzero cold 31.1°F (-0.5°C). Throughout December, Colome witnesses a nighttime temperature average of 18.3°F (-7.6°C).

Humidity

In Colome, the average relative humidity in December is 79%.

Rainfall

In Colome, during December, the rain falls for 3.5 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Colome, during the entire year, the rain falls for 103.9 days and collects up to 16.85" (428mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 8 days and typically aggregates up to 3.19" (81mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:51 am and sunset at 5:04 pm. On the last day of December, in Colome, sunrise is at 8:10 am and sunset at 5:13 pm CST.

Sunshine

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

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.

Frequently asked questions

How cold is December?

Colome in December has an average high-temperature of 31.1°F (-0.5°C) and an average low-temperature of 18.3°F (-7.6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December is 79%.

How much does it rain in December?

In Colome, in December, during 3.5 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 8 days and accumulates 3.19" (81mm) of snow.

How much does it snow in December?

In Colome, in December, snow falls for 8 days, with typically accumulated 3.19" (81mm) of snow.

What is the month with the shortest days?

With an average of 9h and 0min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In Colome, the average day length in December is 9h and 2min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:51 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 5:13 pm CST.

How many hours of sunshine does Colome have in December?

In December, the average sunshine duration is 5.2h.

When is the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 1.

How high is the UV index in December?

The average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents 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
Colome, SD

Average temperature in December - Colome, SD
  • Average high temperature in December: 31.1°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in December: 18.3°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

Average pressure in December
Colome, SD

Average pressure in December - Colome, SD
  • 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 (29.84"Hg).

Average wind speed in December
Colome, SD

Average wind speed in December - Colome, SD
  • Average wind speed in December: 10.9mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.8mph).

Average humidity in December
Colome, SD

Average humidity in December - Colome, SD
  • Average humidity in December: 79%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (57%).

Average rainfall in December
Colome, SD

Average rainfall in December - Colome, SD
  • Average rainfall in December: 0.79"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in December
Colome, SD

Average rainfall days in December - Colome, SD
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (2.7 days).

Average snowfall in December
Colome, SD

Average snowfall in December - Colome, SD
  • Average snowfall in December: 3.19"

The month with the highest snowfall is December (3.19").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Colome, SD

Average snowfall days in December - Colome, SD
  • Average snowfall days in December: 8 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Colome, SD

Average daylight in December / Average sunshine in December - Colome, SD
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in December
Colome, SD

Average sunshine days in December - Colome, SD
  • Average sunshine days in December: 20.2 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in December
Colome, SD

Average UV index in December - Colome, SD
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Colome, SD

Average cloud cover in December - Colome, SD
  • Average cloud cover in December: 44

The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 20).

Average visibility in December
Colome, SD

Average visibility in December - Colome, SD
  • 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).

Colome, South Dakota, USA

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