December weather forecast and climate
Katherine, AZ

Weather in December

The first month of the winter, December, is still a mild month in Katherine, Arizona, with average temperature varying between 43.5°F (6.4°C) and 56.3°F (13.5°C).

Temperature

With an average high-temperature of 56.3°F (13.5°C) and an average low-temperature of 43.5°F (6.4°C), December is the coldest month.

Humidity

The average relative humidity in December is 41%.

Rainfall

The month with the most rainfall in Katherine is December when the rain falls for 5.5 days and typically aggregates up to 0.67" (17mm) of precipitation.

Snowfall

December is the only month when snow falls. December has the most snowfall days of the year in Katherine, Arizona. Snow falls for 0.1 days.

Daylight

December has the shortest days of the year in Katherine, with an average of 9.8h of daylight.

Sunshine

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

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index in Katherine. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Katherine?

The coldest month is December, with an average high-temperature of 56.3°F (13.5°C) and an average low-temperature of 43.5°F (6.4°C).

What is the temperature in December in Katherine?

In Katherine, Arizona, in December, the average high-temperature is 56.3°F (13.5°C), and the average low-temperature is 43.5°F (6.4°C).

What is the average humidity in December in Katherine?

In Katherine, the average relative humidity in December is 41%.

How many days does it rain in December in Katherine?

In December, in Katherine, the rain falls for 5.5 days. Throughout December, 0.67" (17mm) of precipitation is accumulated.

What is the rainiest month in Katherine?

The month with the most rainfall is December when the rain falls for 5.5 days and typically aggregates up to 0.67" (17mm) of precipitation.

When does it start snowing in Katherine?

December is the first month it typically snows. Throughout December, there are 0.1 snowfall days.

When does it snow the most in Katherine?

The month with the most snowfall days is December when snow falls for 0.1 days.

What is the month with the shortest days in Katherine?

With an average of 9.8h of daylight, December has the shortest days of the year in Katherine.

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

In Katherine, the average length of the day in December is 9.8h.

What is the month with the least sunshine in Katherine?

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

How many hours of sunshine does Katherine have in December?

In December, the average sunshine in Katherine is 7h.

When is the lowest UV index in Katherine?

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

What is the UV index intensity in December in Katherine?

In Katherine, Arizona, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in December
Katherine, AZ

Average temperature in December - Katherine, AZ
  • Average high temperature in December: 56.3°F

The warmest month (with the highest average high temperature) is July (100.8°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in December: 43.5°F

The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is December (43.5°F).

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Average pressure in December
Katherine, AZ

Average pressure in December - Katherine, AZ
  • Average pressure in December: 30.08"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.76").

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Average wind speed in December
Katherine, AZ

Average wind speed in December - Katherine, AZ
  • Average wind speed in December: 9.4mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is September (7.6mph).

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Average humidity in December
Katherine, AZ

Average humidity in December - Katherine, AZ
  • Average humidity in December: 41%

The month with the highest relative humidity is January (42%).
The month with the lowest relative humidity is June (14%).

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Average rainfall in December
Katherine, AZ

Average rainfall in December - Katherine, AZ
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is December (0.67").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in December
Katherine, AZ

Average rainfall days in December - Katherine, AZ
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is July (5.9 days).
The month with the least rainy days is June (1.1 days).

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Average snowfall days in December
Katherine, AZ

Average snowfall days in December - Katherine, AZ
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is December (0.1 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in December / Average sunshine in December - Katherine, AZ
  • Average daylight in December: 9.8h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in December: 7h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 7h).

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Average sunshine days in December
Katherine, AZ

Average sunshine days in December - Katherine, AZ
  • Average sunshine days in December: 24.5 days

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is July (20.3 days).

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Average UV index in December
Katherine, AZ

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

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
Katherine, AZ

Average cloud cover in December - Katherine, 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
Katherine, AZ

Average visibility in December - Katherine, 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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