December weather forecast
Horn, AZ

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Weather in December

The first month of the winter, December, is still a refreshing month in Horn, Arizona, with an average temperature varying between 49.6°F (9.8°C) and 64.8°F (18.2°C).

Temperature

December stands out as Horn's coldest month, with temperatures ranging between an average high of 64.8°F (18.2°C) and a low of 49.6°F (9.8°C).

Humidity

The most humid month is December, with an average relative humidity of 40%.

Rainfall

In Horn, in December, it is raining for 3.8 days, with typically 0.39" (10mm) of accumulated precipitation. Throughout the year, in Horn, there are 39.5 rainfall days, and 4.06" (103mm) of precipitation is accumulated.

Daylight

The month with the shortest days in Horn, Arizona, is December, with an average of 10h and 0min of daylight.
On the first day of the month, sunrise is at 7:19 am and sunset at 5:27 pm. On the last day of December, sunrise is at 7:36 am and sunset at 5:38 pm MST.

Sunshine

With an average of 7.1h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index in Horn, Arizona, are November and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 4 during December leads to these advisories:
Ensure safety - Recommendations to avert sunburn are presented. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What are the coldest months in Horn?

Horn's coldest weather arrives in December, when temperatures average a high of 64.8°F (18.2°C) and a low of 49.6°F (9.8°C).

What is the usual temperature for Horn in December?

The high-temperature during December is 64.8°F (18.2°C) and the low-temperature is 49.6°F (9.8°C).

What is the most humid month in Horn?

With an average relative humidity of 40%, December is the most humid month.

What is the average humidity in December in Horn?

In Horn, Arizona, the average relative humidity in December is 40%.

How much does it rain in Horn in December?

In Horn, Arizona, in December, during 3.8 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

What is the month with the shortest days in Horn?

With an average of 10h and 0min of daylight, December has the shortest days of the year in Horn.

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

In Horn, Arizona, the average day length in December is 10h and 1min.

When is the sunrise / sunset in December in Horn?

In December, on the first day of the month, sunrise is at 7:19 am and sunset at 5:27 pm. On the last day of the month, in Horn, sunrise is at 7:36 am and sunset at 5:38 pm MST.

What is the month with the least sunshine in Horn?

With an average of 7.1h of sunshine, December has the least sunshine of the year in Horn.

How many hours of sunshine does Horn have in December?

In Horn, the average sunshine duration in December is 7.1h.

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

November and December, with an average maximum UV index of 4, are months with the lowest UV index in Horn, Arizona.

What is the UV index reading in December in Horn?

In Horn, Arizona, the average daily maximum UV index in December is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Horn, AZ

Average temperature in December - Horn, AZ
  • Average high temperature in December: 64.8°F

The warmest month (with the highest average high temperature) is July (103.8°F).
The month with the lowest average high temperature is December (64.8°F).

  • Average low temperature in December: 49.6°F

The month with the highest average low temperature is August (86.2°F).
The coldest months (with the lowest average low temperature) are January and December (49.6°F).

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Average pressure in December
Horn, AZ

Average pressure in December - Horn, AZ
  • Average pressure in December: 30.03"Hg

The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.73"Hg).

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Average wind speed in December
Horn, AZ

Average wind speed in December - Horn, AZ
  • Average wind speed in December: 5.6mph

The windiest month (with the highest average wind speed) is July (8.6mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).

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Average humidity in December
Horn, AZ

Average humidity in December - Horn, AZ
  • Average humidity in December: 40%

The month with the highest relative humidity is December (40%).
The month with the lowest relative humidity is June (21%).

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Average rainfall in December
Horn, AZ

Average rainfall in December - Horn, AZ
  • Average rainfall in December: 0.39"

The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").

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Average rainfall days in December
Horn, AZ

Average rainfall days in December - Horn, AZ
  • Average rainfall days in December: 3.8 days

The month with the highest number of rainy days is July (8.2 days).
The month with the least rainy days is May (1 days).

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

Average daylight in December / Average sunshine in December - Horn, AZ
  • Average daylight in December: 10h and 0min

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 0min).

  • Average sunshine in December: 7h and 1min

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

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Average sunshine days in December
Horn, AZ

Average sunshine days in December - Horn, AZ
  • Average sunshine days in December: 27.2 days

The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).

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Average UV index in December
Horn, AZ

Average UV index in December - Horn, AZ
  • Average UV index in December: 4

The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 4).

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Average cloud cover in December
Horn, AZ

Average cloud cover in December - Horn, AZ
  • Average cloud cover in December: 18

The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in December
Horn, AZ

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

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