December weather forecast and climate
Holbrook, AZ

The small town of Holbrook in Arizona
The small town of Holbrook in Arizona

Weather in December

The first month of the winter, December, is still a chilly month in Holbrook, Arizona, with average temperature ranging between max 47.7°F (8.7°C) and min 30.9°F (-0.6°C).

Temperature

In Holbrook, the average high-temperature drops, from a mild 59.2°F (15.1°C) in November, to a frosty 47.7°F (8.7°C). In December, the average low-temperature is 30.9°F (-0.6°C).

Humidity

In Holbrook, the average relative humidity in December is 54%.

Rainfall

In Holbrook, during December, the rain falls for 5.1 days and regularly aggregates up to 0.63" (16mm) of precipitation. In Holbrook, during the entire year, the rain falls for 74.3 days and collects up to 7.2" (183mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Holbrook, in December, snow falls for 3.1 days, with typically accumulated 1.3" (33mm) of snow. Throughout the year, there are 11.2 snowfall days, and 5.98" (152mm) of snow is accumulated.

Daylight

The month with the shortest days in Holbrook is December, with an average of 9.8h of daylight.

Sunshine

With an average of 6.8h 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 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Holbrook?

In December, in Holbrook, the average high-temperature is 47.7°F (8.7°C), and the average low-temperature is 30.9°F (-0.6°C).

What is the average humidity in December in Holbrook?

In Holbrook, the average relative humidity in December is 54%.

How much does it rain in Holbrook in December?

In Holbrook, Arizona, in December, during 5.1 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

How much does it snow in Holbrook in December?

In Holbrook, Arizona, during December, snow falls for 3.1 days and regularly aggregates up to 1.3" (33mm) of snow.

What is the month with the shortest days in Holbrook?

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

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

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

What is the month with the least sunshine in Holbrook?

December has the least sunshine of the year, with an average of 6.8h of sunshine.

How long on average sun shines in December in Holbrook?

In December, the average sunshine in Holbrook is 6.8h.

When is the lowest UV index in Holbrook?

The month with the lowest UV index is December, with an average maximum UV index of 2.

What is the UV index intensity in December in Holbrook?

The average daily maximum UV index in December in Holbrook, Arizona, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to the UV radiation.

Average temperature in December
Holbrook, AZ

Average temperature in December - Holbrook, AZ
  • Average high temperature in December: 47.7°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (46.8°F).

  • Average low temperature in December: 30.9°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in December
Holbrook, AZ

Average pressure in December - Holbrook, AZ
  • Average pressure in December: 30.11"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are May and June (29.88").

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Average wind speed in December
Holbrook, AZ

Average wind speed in December - Holbrook, AZ
  • Average wind speed in December: 6.9mph

The windiest months (with the highest average wind speed) are April and May (10.6mph).
The calmest month (with the lowest average wind speed) is January (6.1mph).

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Average humidity in December
Holbrook, AZ

Average humidity in December - Holbrook, AZ
  • Average humidity in December: 54%

The month with the highest relative humidity is January (59%).
The month with the lowest relative humidity is June (18%).

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Average rainfall in December
Holbrook, AZ

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

The wettest month (with the highest rainfall) is July (1.1").
The driest month (with the least rainfall) is June (0.16").

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Average rainfall days in December
Holbrook, AZ

Average rainfall days in December - Holbrook, AZ
  • Average rainfall days in December: 5.1 days

The month with the highest number of rainy days is July (13.3 days).
Months with the least rainy days are June and November (3.4 days).

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Average snowfall in December
Holbrook, AZ

Average snowfall in December - Holbrook, AZ
  • Average snowfall in December: 1.3"

The month with the highest snowfall is February (2.17").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Holbrook, AZ

Average snowfall days in December - Holbrook, AZ
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is December (3.1 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Holbrook, 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: 6.8h

The month with the most sunshine is August (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.8h).

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Average sunshine days in December
Holbrook, AZ

Average sunshine days in December - Holbrook, AZ
  • Average sunshine days in December: 23.7 days

Months with the most sunshine days are May, June and November (25.3 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in December
Holbrook, AZ

Average UV index in December - Holbrook, AZ
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in December
Holbrook, AZ

Average cloud cover in December - Holbrook, AZ
  • Average cloud cover in December: 23

The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 9).

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Average visibility in December
Holbrook, AZ

Average visibility in December - Holbrook, 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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