December weather forecast
Bylas, AZ

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Weather in December

December, the first month of the winter in Bylas, is still a cool month, with an average temperature varying between 36.9°F (2.7°C) and 55.2°F (12.9°C).

Temperature

Bylas, Arizona, records the coldest temperatures in December, averaging a high of 55.2°F (12.9°C) and a low of 36.9°F (2.7°C).

Humidity

December is the most humid month, with an average relative humidity of 53%.

Rainfall

In December, in Bylas, the rain falls for 7.5 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. In Bylas, Arizona, during the entire year, the rain falls for 75.1 days and collects up to 8.82" (224mm) of precipitation.

Snowfall

January through March and December are months with snowfall in Bylas, Arizona. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Bylas, during the entire year, snow falls for 1.1 days and aggregates up to 0.2" (5mm) of snow.

Daylight

The month with the shortest days is December, with an average of 10h and 0min of daylight.
On the first day of December in Bylas, sunrise is at 7:06 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:24 pm MST.

Sunshine

December has the least sunshine of the year in Bylas, with an average of 6.7h of sunshine.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index in Bylas. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What is the coldest month in Bylas?

In Bylas, December registers the lowest temperatures, averaging 55.2°F (12.9°C) at the peak and 36.9°F (2.7°C) at the lowest.

What are the temperatures in Bylas in December?

In Bylas, 55.2°F (12.9°C) is the average high-temperature and 36.9°F (2.7°C) is the average low-temperature during December. In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 86°F (30°C).

What is the most humid month in Bylas?

With an average relative humidity of 53%, December is the most humid month in Bylas.

What is the average humidity in December in Bylas?

In Bylas, the average relative humidity in December is 53%.

How much does it rain in Bylas in December?

In December, the rain falls for 7.5 days. Throughout December, 1.1" (28mm) of precipitation is accumulated.

When does it start to snow in Bylas?

December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days in Bylas?

With an average of 10h and 0min of daylight, December has the shortest days of the year in Bylas, Arizona.

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

In December, the average day length in Bylas, Arizona, is 10h and 1min.

What time are sunrise and sunset in December in Bylas?

On the first day of December, sunrise is at 7:06 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:24 pm MST.

What is the month with the least sunshine in Bylas?

December has the least sunshine of the year, with an average of 6.7h of sunshine.

How long on average sun shines in December in Bylas?

The average sunshine duration in December in Bylas is 6.7h.

What is the month with the lowest UV index in Bylas?

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

How high is the UV index in December in Bylas?

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

Average temperature in December
Bylas, AZ

Average temperature in December - Bylas, AZ
  • Average high temperature in December: 55.2°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is December (55.2°F).

  • Average low temperature in December: 36.9°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is December (36.9°F).

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Average pressure in December
Bylas, AZ

Average pressure in December - Bylas, AZ
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in December
Bylas, AZ

Average wind speed in December - Bylas, AZ
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest months (with the lowest average wind speed) are August and December (5.2mph).

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Average humidity in December
Bylas, AZ

Average humidity in December - Bylas, AZ
  • Average humidity in December: 53%

The month with the highest relative humidity is December (53%).
The month with the lowest relative humidity is June (21%).

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Average rainfall in December
Bylas, AZ

Average rainfall in December - Bylas, AZ
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is August (1.22").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days in December
Bylas, AZ

Average rainfall days in December - Bylas, AZ
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is June (2.9 days).

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Average snowfall in December
Bylas, AZ

Average snowfall in December - Bylas, AZ
  • Average snowfall in December: 0.04"

The month with the highest snowfall is January (0.08").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Bylas, AZ

Average snowfall days in December - Bylas, AZ
  • Average snowfall days in December: 0.2 days

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, October and November (0 days).

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

Average daylight in December / Average sunshine in December - Bylas, AZ
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 6h and 4min

The month with the most sunshine is August (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in December
Bylas, AZ

Average sunshine days in December - Bylas, AZ
  • Average sunshine days in December: 22.9 days

The month with the most sunshine days is May (26.8 days).
The month with the least sunshine days is July (13.1 days).

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Average UV index in December
Bylas, AZ

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

The 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
Bylas, AZ

Average cloud cover in December - Bylas, 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 7).

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Average visibility in December
Bylas, AZ

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

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