December weather forecast
Ajo, AZ

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Weather in December

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

Temperature

December is Ajo's coldest month, registering average high temperatures of 63.1°F (17.3°C) and lows of 47.7°F (8.7°C).

Humidity

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

Rainfall

In December, in Ajo, the rain falls for 5.4 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. Throughout the year, there are 58 rainfall days, and 6.69" (170mm) of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 10h and 6min of daylight.
On the first day of the month, sunrise is at 7:15 am and sunset at 5:26 pm. On the last day of December, sunrise is at 7:32 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

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 medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 3 in December translates into this advice:
Guard yourself - Precautionary measures against sun damage are advocated. Around midday, solar radiation is most harmful; hence, exposure should be limited. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What part of the year is the coldest in Ajo?

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

What is the average December temperature in Ajo?

In Ajo, 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 Ajo?

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

What is the average humidity in December in Ajo?

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

How much does it rain in Ajo in December?

In Ajo, Arizona, during December, the rain falls for 5.4 days and regularly aggregates up to 0.63" (16mm) of precipitation.

What is the month with the shortest days in Ajo?

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

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

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

When are sunrise and sunset in December in Ajo?

On the first day of December in Ajo, Arizona, sunrise is at 7:15 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:36 pm MST.

What is the month with the least sunshine in Ajo?

The month with the least sunshine in Ajo is December, with an average of 7h of sunshine.

How long on average sun shines in December in Ajo?

In December, the average sunshine duration in Ajo is 7h.

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

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

What is the UV index intensity in December in Ajo?

The average daily maximum UV index in December in Ajo, Arizona, is 3. A UV Index reading of 3 to 5 represents a medium health risk 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
Ajo, AZ

Average temperature in December - Ajo, 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).

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Average pressure in December
Ajo, AZ

Average pressure in December - Ajo, 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).

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Average wind speed in December
Ajo, AZ

Average wind speed in December - Ajo, 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).

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Average humidity in December
Ajo, AZ

Average humidity in December - Ajo, 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%).

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Average rainfall in December
Ajo, AZ

Average rainfall in December - Ajo, 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").

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Average rainfall days in December
Ajo, AZ

Average rainfall days in December - Ajo, 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).

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

Average daylight in December / Average sunshine in December - Ajo, 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).

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Average sunshine days in December
Ajo, AZ

Average sunshine days in December - Ajo, 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).

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Average UV index in December
Ajo, AZ

Average UV index in December - Ajo, 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).

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Average cloud cover in December
Ajo, AZ

Average cloud cover in December - Ajo, 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).

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Average visibility in December
Ajo, AZ

Average visibility in December - Ajo, 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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Ajo, Arizona, USA

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