December weather forecast
Chinle, AZ

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Weather in December

The first month of the winter, December, is also an icy month in Chinle, Arizona, with an average temperature ranging between min 23.2°F (-4.9°C) and max 39.6°F (4.2°C).

Temperature

The arrival of December corresponds with a reduction in the average high-temperature, down from November's fresh 50.7°F (10.4°C) to a cold 39.6°F (4.2°C). During the nights in December, an average low-temperature of 23.2°F (-4.9°C) is observed in Chinle.

Humidity

In Chinle, Arizona, the average relative humidity in December is 66%.

Rainfall

In Chinle, during December, the rain falls for 3.5 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, in Chinle, Arizona, there are 91.1 rainfall days, and 12.72" (323mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 9 days and typically aggregates up to 6.42" (163mm) of snow.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of December in Chinle, sunrise is at 7:11 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:14 pm MST.

Sunshine

The months with the least sunshine are January and December, with an average of 6.4h 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 Chinle. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.

Frequently asked questions

How cold is December in Chinle?

In Chinle, 39.6°F (4.2°C) is the average high-temperature and 23.2°F (-4.9°C) is the average low-temperature during December. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 80.6°F (27°C).

What is the average humidity in December in Chinle?

In Chinle, the average relative humidity in December is 66%.

How many days does it rain in December in Chinle?

In December, in Chinle, the rain falls for 3.5 days. Throughout December, 1.06" (27mm) of precipitation is accumulated.

What is the snowiest month in Chinle?

The month with the most snowfall is December, when snow falls for 9 days and typically aggregates up to 6.42" (163mm) of snow.

How much does it snow in Chinle in December?

In December, in Chinle, it is snowing for 9 days. Throughout December, 6.42" (163mm) of snow is accumulated.

What is the month with the shortest days in Chinle?

The month with the shortest days is December, with an average of 9h and 42min of daylight.

How many hours of daylight does Chinle have in December?

In December, the average day length in Chinle, Arizona, is 9h and 45min.

When are sunrise and sunset in December in Chinle?

In December, on the first day of the month, sunrise is at 7:11 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:14 pm MST.

What are the months with the least sunshine in Chinle?

January and December, with an average of 6.4h of sunshine, are months with the least sunshine in Chinle.

How many hours of sunshine does Chinle have in December?

The average sunshine duration in December is 6.4h.

What are the months with the lowest UV index in Chinle?

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

How high is the UV index in December in Chinle?

In December, the average daily maximum UV index in Chinle, Arizona, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe 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
Chinle, AZ

Average temperature in December - Chinle, AZ
  • Average high temperature in December: 39.6°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in December: 23.2°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Chinle, AZ

Average pressure in December - Chinle, AZ
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in December
Chinle, AZ

Average wind speed in December - Chinle, AZ
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in December
Chinle, AZ

Average humidity in December - Chinle, AZ
  • Average humidity in December: 66%

The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is June (24%).

Average rainfall in December
Chinle, AZ

Average rainfall in December - Chinle, AZ
  • Average rainfall in December: 1.06"

The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is June (0.39").

Average rainfall days in December
Chinle, AZ

Average rainfall days in December - Chinle, AZ
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (3.1 days).

Average snowfall in December
Chinle, AZ

Average snowfall in December - Chinle, AZ
  • Average snowfall in December: 6.42"

The month with the highest snowfall is December (6.42").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Chinle, AZ

Average snowfall days in December - Chinle, AZ
  • Average snowfall days in December: 9 days

The month with the highest number of snowfall days is December (9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Chinle, AZ
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 6h and 2min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 6h and 24min).

Average sunshine days in December
Chinle, AZ

Average sunshine days in December - Chinle, AZ
  • Average sunshine days in December: 19.7 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is July (8.7 days).

Average UV index in December
Chinle, AZ

Average UV index in December - Chinle, 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).

Average cloud cover in December
Chinle, AZ

Average cloud cover in December - Chinle, AZ
  • Average cloud cover in December: 29

The months with the most cloud cover are January and December (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 10).

Average visibility in December
Chinle, AZ

Average visibility in December - Chinle, AZ
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Chinle, Arizona, USA

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