December weather forecast
Why, AZ

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Weather in December

The first month of the winter, December, is still a refreshing month in Why, Arizona, with temperature in the range of an average high of 63.1°F (17.3°C) and an average low of 47.7°F (8.7°C).

Temperature

In Why, the month of December is known for its lowest average temperatures, reaching a high of 63.1°F (17.3°C) and a low of 47.7°F (8.7°C).

Humidity

With an average relative humidity of 42%, December is the most humid month in Why.

Rainfall

In December, in Why, the rain falls for 5.4 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. In Why, during the entire year, the rain falls for 58 days and collects up to 6.69" (170mm) of precipitation.

Daylight

December has the shortest days of the year, with an average of 10h and 6min of daylight.
On the first day of December, sunrise is at 7:14 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:36 pm MST.

Sunshine

With an average of 7h of sunshine, December has the least sunshine of the year.

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index in Why. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily UV index of 3 turns into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.

Frequently asked questions

What month is the coldest in Why?

In Why, December records the average lowest temperatures, peaking at 63.1°F (17.3°C) and reaching a low of 47.7°F (8.7°C).

What are December temperatures in Why?

In Why, 63.1°F (17.3°C) is the average high-temperature and 47.7°F (8.7°C) is the average low-temperature during December.

What is the most humid month in Why?

The most humid month in Why is December, with an average relative humidity of 42%.

What is the average humidity in December in Why?

In December, the average relative humidity in Why, Arizona, is 42%.

How much does it rain in Why in December?

In December, in Why, the rain falls for 5.4 days. Throughout December, 0.63" (16mm) of precipitation is accumulated.

What is the month with the shortest days in Why?

With an average of 10h and 6min of daylight, December has the shortest days of the year.

How many hours of daylight does Why have in December?

In Why, Arizona, the average day length in December is 10h and 5min.

When is the sunrise / sunset in December in Why?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 5:25 pm. On the last day of the month, in Why, Arizona, sunrise is at 7:31 am and sunset at 5:36 pm MST.

What is the month with the least sunshine in Why?

December has the least sunshine of the year in Why, with an average of 7h of sunshine.

How many hours of sunshine does Why have in December?

The average sunshine duration in December in Why is 7h.

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

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

What is the UV index reading in December in Why?

The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Why, AZ

Average temperature in December - Why, AZ
  • Average high temperature in December: 63.1°F

The warmest month (with the highest average high temperature) is July (102.4°F).
The month with the lowest average high temperature is December (63.1°F).

  • Average low temperature in December: 47.7°F

The month with the highest average low temperature is August (85.3°F).
The coldest month (with the lowest average low temperature) is December (47.7°F).

Average pressure in December
Why, AZ

Average pressure in December - Why, AZ
  • Average pressure in December: 30.04"Hg

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.76"Hg).

Average wind speed in December
Why, AZ

Average wind speed in December - Why, AZ
  • Average wind speed in December: 5.3mph

The windiest months (with the highest average wind speed) are May and June (8.3mph).
The calmest months (with the lowest average wind speed) are January and December (5.3mph).

Average humidity in December
Why, AZ

Average humidity in December - Why, AZ
  • Average humidity in December: 42%

The month with the highest relative humidity is December (42%).
The month with the lowest relative humidity is June (17%).

Average rainfall in December
Why, AZ

Average rainfall in December - Why, AZ
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is July (1.5").
The driest months (with the least rainfall) are April, May and June (0.08").

Average rainfall days in December
Why, AZ

Average rainfall days in December - Why, AZ
  • Average rainfall days in December: 5.4 days

The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is May (1.3 days).

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

Average daylight in December / Average sunshine in December - Why, AZ
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in December: 7h and 0min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in December
Why, AZ

Average sunshine days in December - Why, AZ
  • Average sunshine days in December: 25 days

The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (13.4 days).

Average UV index in December
Why, AZ

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

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

Average cloud cover in December
Why, AZ

Average cloud cover in December - Why, AZ
  • Average cloud cover in December: 19

The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in December
Why, AZ

Average visibility in December - Why, 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).

Why, Arizona, USA

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