December weather forecast
Supai, AZ

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Weather in December

Supai, Arizona, USA, welcomes the heart of winter in December, accompanied by moisture-rich air. The month is characterized by lower temperatures ranging from 26.2°F (-3.2°C) to 43°F (6.1°C) and increased snowfall, up to 2.44" (62mm). January continues the trend with similar weather patterns and maintains the snowy ambiance. December is fondly appreciated for its festive spirit, enhanced by the cold weather, making it an excellent time for winter holidays. Despite the chilly climate, the beauty and tranquility of Supai make it a unique destination to experience the winter season.

Temperature

December stands out as Supai's coldest month, with an average high-temperature of 43°F (6.1°C) and a low-temperature of 26.2°F (-3.2°C).

Humidity

In Supai, the average relative humidity in December is 62%.

Rainfall

In Supai, in December, it is raining for 3.1 days, with typically 0.39" (10mm) of accumulated precipitation. In Supai, during the entire year, the rain falls for 46.7 days and collects up to 4.29" (109mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Supai, in December, during 5.3 snowfall days, 2.44" (62mm) of snow is typically accumulated. Throughout the year, there are 23 snowfall days, and 10.24" (260mm) of snow is accumulated.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:24 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:26 pm MST.

Sunshine

The average sunshine in December in Supai is 6.9h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What is the coldest time of year in Supai?

Supai's coldest weather arrives in December, when temperatures average a high of 43°F (6.1°C) and a low of 26.2°F (-3.2°C).

How cold does it get in Supai in December?

The average high-temperature and low-temperature during December are 43°F (6.1°C) and 26.2°F (-3.2°C) respectively.

What is the average humidity in December in Supai?

The average relative humidity in December is 62%.

How many days does it rain in December in Supai?

In Supai, during December, the rain falls for 3.1 days and regularly aggregates up to 0.39" (10mm) of precipitation.

How much does it snow in Supai in December?

In Supai, Arizona, in December, snow falls for 5.3 days, with typically accumulated 2.44" (62mm) of snow.

What is the month with the shortest days in Supai?

December has the shortest days of the year in Supai, with an average of 9h and 42min of daylight.

How many hours of daylight does Supai have in December?

In Supai, Arizona, the average day length in December is 9h and 44min.

What time are sunrise and sunset in December in Supai?

On the first day of December in Supai, sunrise is at 7:24 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:26 pm MST.

How many hours of sunshine does Supai have in December?

In December, the average sunshine duration is 6.9h.

When is the lowest UV index in Supai?

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

What is the UV index reading in December in Supai?

The average daily maximum UV index in December in Supai is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
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
Supai, AZ

Average temperature in December - Supai, AZ
  • Average high temperature in December: 43°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (43°F).

  • Average low temperature in December: 26.2°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is December (26.2°F).

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Average pressure in December
Supai, AZ

Average pressure in December - Supai, AZ
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in December
Supai, AZ

Average wind speed in December - Supai, AZ
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is January (6.6mph).

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Average humidity in December
Supai, AZ

Average humidity in December - Supai, AZ
  • Average humidity in December: 62%

The month with the highest relative humidity is January (64%).
The month with the lowest relative humidity is June (21%).

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Average rainfall in December
Supai, AZ

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

The wettest month (with the highest rainfall) is March (0.51").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in December
Supai, AZ

Average rainfall days in December - Supai, AZ
  • Average rainfall days in December: 3.1 days

The month with the highest number of rainy days is July (6 days).
The month with the least rainy days is June (1.9 days).

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Average snowfall in December
Supai, AZ

Average snowfall in December - Supai, AZ
  • Average snowfall in December: 2.44"

The month with the highest snowfall is January (3.11").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Supai, AZ

Average snowfall days in December - Supai, AZ
  • Average snowfall days in December: 5.3 days

The months with the highest number of snowfall days are February and December (5.3 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
Supai, AZ

Average daylight in December / Average sunshine in December - Supai, 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 5min

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

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Average sunshine days in December
Supai, AZ

Average sunshine days in December - Supai, AZ
  • Average sunshine days in December: 23.8 days

The month with the most sunshine days is June (27.3 days).
The month with the least sunshine days is February (21.4 days).

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Average UV index in December
Supai, AZ

Average UV index in December - Supai, 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
Supai, AZ

Average cloud cover in December - Supai, AZ
  • Average cloud cover in December: 24

The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 7).

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Average visibility in December
Supai, AZ

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

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