December weather forecast
Vernon, AZ

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Weather in December

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

Temperature

Vernon's temperatures tend to hit their minimum during January and December, with an average high-temperature of 45.7°F (7.6°C).

Humidity

In December, the average relative humidity is 61%.

Rainfall

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

Snowfall

January through May, October through December are months with snowfall. In Vernon, in December, during 6.9 snowfall days, 5.2" (132mm) of snow is typically accumulated. In Vernon, during the entire year, snow falls for 26 days and aggregates up to 20.98" (533mm) of snow.

Daylight

With an average of 9h and 54min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:07 am and sunset at 5:08 pm. On the last day of December, sunrise is at 7:24 am and sunset at 5:19 pm MST.

Sunshine

The month with the least sunshine is December, 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. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

During January and December, Vernon registers its lowest temperatures, averaging a high of 45.7°F (7.6°C).

What is the usual temperature for Vernon in December?

During December, Vernon experiences an average high-temperature of 45.7°F (7.6°C) and a low-temperature of 27°F (-2.8°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in August is estimated at 82.4°F (28°C).

What is the average humidity in December?

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

How many days does it rain in December?

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

How much does it snow in December?

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

What is the month with the shortest days?

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

How many hours of daylight does Vernon have in December?

In December, the average day length is 9h and 55min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:19 pm MST.

What is the month with the least sunshine?

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

How many hours of sunshine does Vernon have in December?

In December, the average sunshine duration is 6.8h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's 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
Vernon, AZ

Average temperature in December - Vernon, 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).

Average pressure in December
Vernon, AZ

Average pressure in December - Vernon, 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).

Average wind speed in December
Vernon, AZ

Average wind speed in December - Vernon, 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).

Average humidity in December
Vernon, AZ

Average humidity in December - Vernon, 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%).

Average rainfall in December
Vernon, AZ

Average rainfall in December - Vernon, 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").

Average rainfall days in December
Vernon, AZ

Average rainfall days in December - Vernon, 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).

Average snowfall in December
Vernon, AZ

Average snowfall in December - Vernon, 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").

Average snowfall days in December
Vernon, AZ

Average snowfall days in December - Vernon, 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).

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

Average daylight in December / Average sunshine in December - Vernon, 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).

Average sunshine days in December
Vernon, AZ

Average sunshine days in December - Vernon, 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).

Average UV index in December
Vernon, AZ

Average UV index in December - Vernon, 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
Vernon, AZ

Average cloud cover in December - Vernon, 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).

Average visibility in December
Vernon, AZ

Average visibility in December - Vernon, 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).

Vernon, Arizona, USA

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