December weather forecast
Ventana, AZ

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Weather in December

The first month of the winter, December, is still a comfortable month in Ventana, 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

Ventana reaches its lowest average temperatures in December, measuring 63.1°F (17.3°C) at the peak and 47.7°F (8.7°C) at the lowest.

Humidity

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

Rainfall

In Ventana, in December, it is raining for 5.4 days, with typically 0.63" (16mm) of accumulated precipitation. In Ventana, 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 the month, sunrise is at 7:13 am and sunset at 5:23 pm. On the last day of December, sunrise is at 7:30 am and sunset at 5:34 pm MST.

Sunshine

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

UV index

December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 3 in December leads to these guidelines:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

What are the coldest months?

December, with its average high-temperature of 63.1°F (17.3°C) and an average low-temperature of 47.7°F (8.7°C), holds the record as the coldest month.

What are the temperatures in December?

The average high-temperature and low-temperature during December are 63.1°F (17.3°C) and 47.7°F (8.7°C) respectively.

What is the most humid month?

December is the most humid month, with an average relative humidity of 42%.

What is the average humidity in December?

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

How many days does it rain in December?

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

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 6min of daylight.

What is the average length of the day in December?

In December, the average day length is 10h and 4min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:34 pm MST.

What is the month with the least sunshine?

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

How long on average sun shines in December?

The average sunshine duration in December is 7h.

When is the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Ventana, AZ

Average temperature in December - Ventana, 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
Ventana, AZ

Average pressure in December - Ventana, 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
Ventana, AZ

Average wind speed in December - Ventana, 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
Ventana, AZ

Average humidity in December - Ventana, 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
Ventana, AZ

Average rainfall in December - Ventana, 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
Ventana, AZ

Average rainfall days in December - Ventana, 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
Ventana, AZ

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

The month with the longest days is June (Average daylight: 14h and 18min).
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
Ventana, AZ

Average sunshine days in December - Ventana, 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
Ventana, AZ

Average UV index in December - Ventana, 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
Ventana, AZ

Average cloud cover in December - Ventana, 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
Ventana, AZ

Average visibility in December - Ventana, 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).

Ventana, Arizona, USA

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