December weather forecast
Bullhead, SD

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Weather in December

December, the first month of the winter in Bullhead, is also a subzero cold month, with an average temperature ranging between max 25.7°F (-3.5°C) and min 14.4°F (-9.8°C).

Temperature

December signals a clear temperature drop, with average high-temperatures decreasing from November's cold 41.5°F (5.3°C) to a freezing cold 25.7°F (-3.5°C). Throughout the month of December, Bullhead witnesses an average temperature of 14.4°F (-9.8°C).

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Bullhead, during December, the rain falls for 2.7 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Bullhead, during the entire year, the rain falls for 89.4 days and collects up to 15.39" (391mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Bullhead. In Bullhead, in December, during 9.5 snowfall days, 3.39" (86mm) of snow is typically accumulated. In Bullhead, South Dakota, during the entire year, snow falls for 49.4 days and aggregates up to 19.09" (485mm) of snow.

Daylight

December has the shortest days of the year in Bullhead, South Dakota, with an average of 8h and 42min of daylight.
On the first day of the month, sunrise is at 7:05 am and sunset at 4:01 pm. On the last day of December, in Bullhead, sunrise is at 7:25 am and sunset at 4:10 pm MST.

Sunshine

In December, the average sunshine is 4.5h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Bullhead. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A typical high UV index of 1 in December suggests the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

How cold is December in Bullhead?

In Bullhead, 25.7°F (-3.5°C) is the average high-temperature and 14.4°F (-9.8°C) is the average low-temperature during December. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 86°F (30°C).

What is the average humidity in December in Bullhead?

In Bullhead, the average relative humidity in December is 83%.

How many days does it rain in December in Bullhead?

In Bullhead, in December, during 2.7 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

How much does it snow in Bullhead in December?

In Bullhead, South Dakota, in December, during 9.5 snowfall days, 3.39" (86mm) of snow is typically accumulated.

What is the month with the shortest days in Bullhead?

The month with the shortest days in Bullhead is December, with an average of 8h and 42min of daylight.

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

The average day length in December in Bullhead, South Dakota, is 8h and 44min.

When is the sunrise / sunset in December in Bullhead?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:01 pm. On the last day of the month, in Bullhead, South Dakota, sunrise is at 7:25 am and sunset at 4:10 pm MST.

How long on average sun shines in December in Bullhead?

In Bullhead, South Dakota, the average sunshine duration in December is 4.5h.

When is the lowest UV index in Bullhead?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in December in Bullhead?

In Bullhead, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health threat 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
Bullhead, SD

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

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (23°F).

  • Average low temperature in December: 14.4°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (9°F).

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Average pressure in December
Bullhead, SD

Average pressure in December - Bullhead, 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 (29.84"Hg).

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Average wind speed in December
Bullhead, SD

Average wind speed in December - Bullhead, SD
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is February (9.4mph).

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Average humidity in December
Bullhead, SD

Average humidity in December - Bullhead, SD
  • Average humidity in December: 83%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (52%).

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Average rainfall in December
Bullhead, SD

Average rainfall in December - Bullhead, SD
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in December
Bullhead, SD

Average rainfall days in December - Bullhead, SD
  • Average rainfall days in December: 2.7 days

The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is February (1.3 days).

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Average snowfall in December
Bullhead, SD

Average snowfall in December - Bullhead, SD
  • Average snowfall in December: 3.39"

The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Bullhead, SD

Average snowfall days in December - Bullhead, SD
  • Average snowfall days in December: 9.5 days

The month with the highest number of snowfall days is January (11.8 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
Bullhead, SD

Average daylight in December / Average sunshine in December - Bullhead, SD
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 4h and 3min

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 6min).

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Average sunshine days in December
Bullhead, SD

Average sunshine days in December - Bullhead, SD
  • Average sunshine days in December: 20.1 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.6 days).

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Average UV index in December
Bullhead, SD

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

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

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Average cloud cover in December
Bullhead, SD

Average cloud cover in December - Bullhead, SD
  • Average cloud cover in December: 52

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 21).

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Average visibility in December
Bullhead, SD

Average visibility in December - Bullhead, 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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Bullhead, South Dakota, USA

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