December weather forecast
Black Falls Crossing, AZ

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Weather in December

The first month of the winter, December, is also a wintry month in Black Falls Crossing, Arizona, with an average temperature varying between 41.9°F (5.5°C) and 24.3°F (-4.3°C).

Temperature

A moderate decline in the average high-temperature is seen during December, decreasing from a cool 52.2°F (11.2°C) in November to a cold 41.9°F (5.5°C). Throughout December, Black Falls Crossing anticipates an average low-temperature of 24.3°F (-4.3°C).

Humidity

The average relative humidity in December in Black Falls Crossing, Arizona, is 63%.

Rainfall

In Black Falls Crossing, Arizona, during December, the rain falls for 1.2 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 60.2 rainfall days, and 10" (254mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 5.5 days and accumulates 4.57" (116mm) of snow.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year in Black Falls Crossing.
On the first day of December, sunrise is at 7:16 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:22 pm MST.

Sunshine

December has the least sunshine of the year, with an average of 6.9h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. It's recommended to limit sun exposure when its radiation is at its peak during midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

Is December cold in Black Falls Crossing?

The average high-temperature and low-temperature during December are 41.9°F (5.5°C) and 24.3°F (-4.3°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in July is computed to be 82.4°F (28°C).

What is the average humidity in December in Black Falls Crossing?

The average relative humidity in December is 63%.

How many days does it rain in December in Black Falls Crossing?

In Black Falls Crossing, Arizona, during December, the rain falls for 1.2 days and regularly aggregates up to 0.63" (16mm) of precipitation.

What is the snowiest month in Black Falls Crossing?

December is the month with the most snowfall in Black Falls Crossing. Snow falls for 5.5 days and accumulates 4.57" (116mm) of snow.

How much does it snow in Black Falls Crossing in December?

In December, in Black Falls Crossing, it is snowing for 5.5 days. Throughout December, 4.57" (116mm) of snow is accumulated.

What is the month with the shortest days in Black Falls Crossing?

December has the shortest days of the year in Black Falls Crossing, Arizona, with an average of 9h and 48min of daylight.

What is the average length of the day in December in Black Falls Crossing?

In Black Falls Crossing, the average day length in December is 9h and 48min.

When is the sunrise / sunset in December in Black Falls Crossing?

On the first day of December in Black Falls Crossing, sunrise is at 7:16 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:22 pm MST.

What is the month with the least sunshine in Black Falls Crossing?

The month with the least sunshine is December, with an average of 6.9h of sunshine.

How long on average sun shines in December in Black Falls Crossing?

In Black Falls Crossing, the average sunshine duration in December is 6.9h.

What is the month with the lowest UV index in Black Falls Crossing?

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

What is the UV index reading in December in Black Falls Crossing?

In December, the average daily maximum UV index in Black Falls Crossing, Arizona, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Black Falls Crossing, AZ

Average temperature in December - Black Falls Crossing, AZ
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in December: 24.3°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).

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Average pressure in December
Black Falls Crossing, AZ

Average pressure in December - Black Falls Crossing, AZ
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in December
Black Falls Crossing, AZ

Average wind speed in December - Black Falls Crossing, AZ
  • Average wind speed in December: 6.9mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in December
Black Falls Crossing, AZ

Average humidity in December - Black Falls Crossing, AZ
  • Average humidity in December: 63%

The month with the highest relative humidity is January (66%).
The month with the lowest relative humidity is June (23%).

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Average rainfall in December
Black Falls Crossing, AZ

Average rainfall in December - Black Falls Crossing, AZ
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is July (2.48").
The driest month (with the least rainfall) is June (0.2").

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Average rainfall days in December
Black Falls Crossing, AZ

Average rainfall days in December - Black Falls Crossing, AZ
  • Average rainfall days in December: 1.2 days

The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is November (1.1 days).

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Average snowfall in December
Black Falls Crossing, AZ

Average snowfall in December - Black Falls Crossing, AZ
  • Average snowfall in December: 4.57"

The month with the highest snowfall is December (4.57").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Black Falls Crossing, AZ

Average snowfall days in December - Black Falls Crossing, AZ
  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is December (5.5 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Black Falls Crossing, AZ

Average daylight in December / Average sunshine in December - Black Falls Crossing, AZ
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 6h and 5min

The months with the most sunshine are June and August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

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Average sunshine days in December
Black Falls Crossing, AZ

Average sunshine days in December - Black Falls Crossing, AZ
  • Average sunshine days in December: 25.1 days

The month with the most sunshine days is November (26.9 days).
The month with the least sunshine days is July (11 days).

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Average UV index in December
Black Falls Crossing, AZ

Average UV index in December - Black Falls Crossing, AZ
  • 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).

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Average cloud cover in December
Black Falls Crossing, AZ

Average cloud cover in December - Black Falls Crossing, AZ
  • Average cloud cover in December: 23

The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 7).

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Average visibility in December
Black Falls Crossing, AZ

Average visibility in December - Black Falls Crossing, AZ
  • 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).

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Black Falls Crossing, Arizona, USA

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