December weather forecast
Whiteriver, AZ

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Weather in December

December, the first month of the winter in Whiteriver, is still a chilly month, with an average temperature fluctuating between 27°F (-2.8°C) and 45.7°F (7.6°C).

Temperature

In Whiteriver, the coldest period comes during January and December, when the average high-temperature touches 45.7°F (7.6°C).

Humidity

In December, the average relative humidity in Whiteriver is 61%.

Rainfall

In Whiteriver, in December, it is raining for 3.6 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 71.1 rainfall days, and 9.96" (253mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Whiteriver, in December, during 6.9 snowfall days, 5.2" (132mm) of snow is typically accumulated. Throughout the year, there are 26 snowfall days, and 20.98" (533mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Whiteriver, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 7:07 am and sunset at 5:11 pm. On the last day of December, sunrise is at 7:24 am and sunset at 5:21 pm MST.

Sunshine

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

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Whiteriver. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. It's recommended to limit sun exposure when its radiation is at its peak during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

What part of the year is the coldest in Whiteriver?

Temperatures in Whiteriver reach their minimum during January and December, recording an average high-temperature of 45.7°F (7.6°C).

What is the usual temperature for Whiteriver in December?

An average high-temperature, in December, in Whiteriver, is 45.7°F (7.6°C) and the average low-temperature is 27°F (-2.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 82.4°F (28°C).

What is the average humidity in December in Whiteriver?

The average relative humidity in December in Whiteriver is 61%.

How much does it rain in Whiteriver in December?

In Whiteriver, Arizona, in December, during 3.6 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.

How many days does it snow in December in Whiteriver?

In Whiteriver, in December, snow falls for 6.9 days, with typically accumulated 5.2" (132mm) of snow.

What is the month with the shortest days in Whiteriver?

The month with the shortest days in Whiteriver, Arizona, is December, with an average of 9h and 54min of daylight.

How many hours of daylight does Whiteriver have in December?

In December, the average day length in Whiteriver, Arizona, is 9h and 57min.

When is the sunrise / sunset in December in Whiteriver?

On the first day of December in Whiteriver, sunrise is at 7:07 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:21 pm MST.

What is the month with the least sunshine in Whiteriver?

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

How long on average sun shines in December in Whiteriver?

The average sunshine duration in December is 6.8h.

When is the lowest UV index in Whiteriver?

The months with the lowest UV index in Whiteriver are January, February, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Whiteriver?

In December, the average daily maximum UV index in Whiteriver, Arizona, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Whiteriver, AZ

Average temperature in December - Whiteriver, AZ
  • Average high temperature in December: 45.7°F

The warmest month (with the highest average high temperature) is June (83.3°F).
The months with the lowest average high temperature are January and December (45.7°F).

  • Average low temperature in December: 27°F

The month with the highest average low temperature is July (61°F).
The coldest months (with the lowest average low temperature) are January and December (27°F).

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Average pressure in December
Whiteriver, AZ

Average pressure in December - Whiteriver, AZ
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in December
Whiteriver, AZ

Average wind speed in December - Whiteriver, AZ
  • Average wind speed in December: 7.7mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in December
Whiteriver, AZ

Average humidity in December - Whiteriver, AZ
  • Average humidity in December: 61%

The month with the highest relative humidity is January (62%).
The month with the lowest relative humidity is June (26%).

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Average rainfall in December
Whiteriver, AZ

Average rainfall in December - Whiteriver, AZ
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is July (1.89").
The driest month (with the least rainfall) is June (0.16").

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Average rainfall days in December
Whiteriver, AZ

Average rainfall days in December - Whiteriver, AZ
  • Average rainfall days in December: 3.6 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is June (2.8 days).

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Average snowfall in December
Whiteriver, AZ

Average snowfall in December - Whiteriver, AZ
  • Average snowfall in December: 5.2"

The month with the highest snowfall is January (5.94").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Whiteriver, AZ

Average snowfall days in December - Whiteriver, AZ
  • Average snowfall days in December: 6.9 days

The month with the highest number of snowfall days is December (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Whiteriver, AZ
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 6h and 5min

The months with the most sunshine are June and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

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Average sunshine days in December
Whiteriver, AZ

Average sunshine days in December - Whiteriver, AZ
  • Average sunshine days in December: 22 days

The month with the most sunshine days is October (26 days).
The month with the least sunshine days is July (9.7 days).

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Average UV index in December
Whiteriver, AZ

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Whiteriver, AZ

Average cloud cover in December - Whiteriver, 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 8).

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Average visibility in December
Whiteriver, AZ

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

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