December weather forecast and climate
Scottsdale, AZ

A scenic waterfront canal running through Scottsdale, Arizona
A scenic waterfront canal running through Scottsdale, Arizona

Weather in December

The first month of the winter, December, is still a comfortable month in Scottsdale, Arizona, with average temperature ranging between max 62.8°F (17.1°C) and min 47.3°F (8.5°C).

Temperature

The coldest month is December, with an average high-temperature of 62.8°F (17.1°C) and an average low-temperature of 47.3°F (8.5°C).

Humidity

The most humid month is December, with an average relative humidity of 44%.

Rainfall

In Scottsdale, during December, the rain falls for 6.5 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, in Scottsdale, there are 57.7 rainfall days, and 7.72" (196mm) of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 10h of daylight.

Sunshine

With an average of 6.8h of sunshine, December has the least sunshine of the year in Scottsdale, Arizona.

UV index

The month with the lowest UV index in Scottsdale is December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the coldest month in Scottsdale?

With an average high-temperature of 62.8°F (17.1°C) and an average low-temperature of 47.3°F (8.5°C), December is the coldest month.

What is the temperature in December in Scottsdale?

In Scottsdale, in December, the average high-temperature is 62.8°F (17.1°C), and the average low-temperature is 47.3°F (8.5°C).

What is the most humid month in Scottsdale?

With an average relative humidity of 44%, December is the most humid month.

What is the average humidity in December in Scottsdale?

In December, the average relative humidity in Scottsdale is 44%.

How many days does it rain in December in Scottsdale?

In Scottsdale, Arizona, in December, during 6.5 rainfall days, 0.87" (22mm) of precipitation is typically accumulated.

What is the month with the shortest days in Scottsdale?

December has the shortest days of the year in Scottsdale, with an average of 10h of daylight.

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

In Scottsdale, the average length of the day in December is 10h.

What is the month with the least sunshine in Scottsdale?

The month with the least sunshine is December, with an average of 6.8h of sunshine.

How long on average sun shines in December in Scottsdale?

In December, the average sunshine in Scottsdale is 6.8h.

What is the month with the lowest UV index in Scottsdale?

The month with the lowest UV index in Scottsdale, Arizona, is December, with an average maximum UV index of 3.

What is the UV index intensity in December in Scottsdale?

In December, the average daily maximum UV index in Scottsdale is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in December
Scottsdale, AZ

Average temperature in December - Scottsdale, AZ
  • Average high temperature in December: 62.8°F

The warmest month (with the highest average high temperature) is July (102.6°F).
The month with the lowest average high temperature is December (62.8°F).

  • Average low temperature in December: 47.3°F

The month with the highest average low temperature is August (84.4°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).

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Average pressure in December
Scottsdale, AZ

Average pressure in December - Scottsdale, AZ
  • Average pressure in December: 30.06"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.81").

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Average wind speed in December
Scottsdale, AZ

Average wind speed in December - Scottsdale, AZ
  • Average wind speed in December: 4.4mph

The windiest months (with the highest average wind speed) are April and May (6.3mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).

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Average humidity in December
Scottsdale, AZ

Average humidity in December - Scottsdale, AZ
  • Average humidity in December: 44%

The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (16%).

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Average rainfall in December
Scottsdale, AZ

Average rainfall in December - Scottsdale, AZ
  • Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is July (1.14").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in December
Scottsdale, AZ

Average rainfall days in December - Scottsdale, AZ
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is June (1 days).

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Average daylight in December /
Average sunshine in December
Scottsdale, AZ

Average daylight in December / Average sunshine in December - Scottsdale, AZ
  • Average daylight in December: 10h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in December: 6.8h

Months with the most sunshine are June and August (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.8h).

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Average sunshine days in December
Scottsdale, AZ

Average sunshine days in December - Scottsdale, AZ
  • Average sunshine days in December: 24.1 days

The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is July (16.8 days).

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Average UV index in December
Scottsdale, AZ

Average UV index in December - Scottsdale, AZ
  • Average UV index in December: 3

Months with the highest UV index are May, June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in December
Scottsdale, AZ

Average cloud cover in December - Scottsdale, AZ
  • Average cloud cover in December: 21

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in December
Scottsdale, AZ

Average visibility in December - Scottsdale, AZ
  • Average visibility in December: 6mi

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

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