December weather forecast
Aurora, SD

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Weather in December

December, the first month of the winter in Aurora, is still a freezing cold month, with an average temperature ranging between max 25.7°F (-3.5°C) and min 13.6°F (-10.2°C).

Temperature

December marks a distinct drop in the average high-temperature, descending from November's cold 41.2°F (5.1°C) to a freezing cold 25.7°F (-3.5°C). Throughout December in Aurora, South Dakota, a steady low-temperature average of 13.6°F (-10.2°C) is noted.

Humidity

In December, the average relative humidity in Aurora is 86%.

Rainfall

In Aurora, South Dakota, during December, the rain falls for 5.1 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Aurora, during the entire year, the rain falls for 125.5 days and collects up to 21.65" (550mm) of precipitation.

Snowfall

Months with snowfall in Aurora are January through May, October through December. In Aurora, in December, during 13.3 snowfall days, 4.65" (118mm) of snow is typically accumulated. Throughout the year, in Aurora, South Dakota, there are 61.5 snowfall days, and 21.38" (543mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of December, sunrise is at 7:43 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 4:57 pm CST.

Sunshine

In December, the average sunshine in Aurora, South Dakota, is 4.2h.

UV index

In Aurora, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: An average maximum UV index of 2 in December leads to these recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. 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. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

How cold is it in Aurora in December?

Aurora in December has an average high-temperature of 25.7°F (-3.5°C) and an average low-temperature of 13.6°F (-10.2°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 86°F (30°C).

What is the average humidity in December in Aurora?

In Aurora, South Dakota, the average relative humidity in December is 86%.

How many days does it rain in December in Aurora?

In December, the rain falls for 5.1 days. Throughout December, 1.1" (28mm) of precipitation is accumulated.

How much does it snow in Aurora in December?

In Aurora, South Dakota, in December, snow falls for 13.3 days, with typically accumulated 4.65" (118mm) of snow.

What is the month with the shortest days in Aurora?

December has the shortest days of the year, with an average of 8h and 54min of daylight.

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

In Aurora, South Dakota, the average day length in December is 8h and 55min.

When are sunrise and sunset in December in Aurora?

On the first day of December, sunrise is at 7:43 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 4:57 pm CST.

How long on average sun shines in December in Aurora?

In December, the average sunshine duration in Aurora is 4.2h.

What is the UV index intensity in December in Aurora?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's 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
Aurora, SD

Average temperature in December - Aurora, SD
  • Average high temperature in December: 25.7°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in December: 13.6°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7°F).

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Average pressure in December
Aurora, SD

Average pressure in December - Aurora, SD
  • Average pressure in December: 30.13"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in December
Aurora, SD

Average wind speed in December - Aurora, SD
  • Average wind speed in December: 10.7mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).

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Average humidity in December
Aurora, SD

Average humidity in December - Aurora, SD
  • Average humidity in December: 86%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in December
Aurora, SD

Average rainfall in December - Aurora, SD
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is November (0.67").

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Average rainfall days in December
Aurora, SD

Average rainfall days in December - Aurora, SD
  • Average rainfall days in December: 5.1 days

The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is January (3.2 days).

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Average snowfall in December
Aurora, SD

Average snowfall in December - Aurora, SD
  • Average snowfall in December: 4.65"

The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Aurora, SD

Average snowfall days in December - Aurora, SD
  • Average snowfall days in December: 13.3 days

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Aurora, SD
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in December
Aurora, SD

Average sunshine days in December - Aurora, SD
  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (8.3 days).

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Average UV index in December
Aurora, SD

Average UV index in December - Aurora, SD
  • Average UV index in December: 2

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

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Average cloud cover in December
Aurora, SD

Average cloud cover in December - Aurora, SD
  • Average cloud cover in December: 56

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in December
Aurora, SD

Average visibility in December - Aurora, SD
  • Average visibility in December: 6mi

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

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Aurora, South Dakota, USA

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