December weather forecast
Sentinel, AZ

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Weather in December

The first month of the winter, December, is also an enjoyable month in Sentinel, Arizona, with an average temperature ranging between max 63.1°F (17.3°C) and min 47.7°F (8.7°C).

Temperature

In Sentinel, the lowest average temperatures are observed in December, with a high of 63.1°F (17.3°C) and a low of 47.7°F (8.7°C).

Humidity

The most humid month is December, with an average relative humidity of 42%.

Rainfall

In Sentinel, Arizona, during December, the rain falls for 5.4 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 58 rainfall days, and 6.69" (170mm) of precipitation is accumulated.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:18 am and sunset at 5:26 pm. On the last day of December, sunrise is at 7:35 am and sunset at 5:37 pm MST.

Sunshine

December has the least sunshine of the year, with an average of 7h of sunshine.

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, an average UV index of 3 transforms into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Sentinel?

December is the coldest month, exhibiting average temperatures of 63.1°F (17.3°C) at the peak and 47.7°F (8.7°C) at the base.

What is the usual temperature for Sentinel in December?

During December, Sentinel experiences an average high-temperature of 63.1°F (17.3°C) and a low-temperature of 47.7°F (8.7°C).

What is the most humid month?

December is the most humid month, with an average relative humidity of 42%.

What is the average humidity in December?

In Sentinel, the average relative humidity in December is 42%.

How much does it rain in December?

In Sentinel, during December, the rain falls for 5.4 days and regularly aggregates up to 0.63" (16mm) of precipitation.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 0min of daylight.

What is the average length of the day in December?

In Sentinel, the average day length in December is 10h and 2min.

What time are sunrise and sunset in December in Sentinel?

On the first day of December, sunrise is at 7:18 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:37 pm MST.

What is the month with the least sunshine in Sentinel?

December has the least sunshine of the year, with an average of 7h of sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 7h.

What is the month with the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 3.

What is the UV index reading in December?

In Sentinel, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Sentinel, AZ

Average temperature in December - Sentinel, AZ
  • Average high temperature in December: 63.1°F

The warmest month (with the highest average high temperature) is July (102.4°F).
The month with the lowest average high temperature is December (63.1°F).

  • Average low temperature in December: 47.7°F

The month with the highest average low temperature is August (85.3°F).
The coldest month (with the lowest average low temperature) is December (47.7°F).

Average pressure in December
Sentinel, AZ

Average pressure in December - Sentinel, AZ
  • Average pressure in December: 30.04"Hg

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.76"Hg).

Average wind speed in December
Sentinel, AZ

Average wind speed in December - Sentinel, AZ
  • Average wind speed in December: 5.3mph

The windiest months (with the highest average wind speed) are May and June (8.3mph).
The calmest months (with the lowest average wind speed) are January and December (5.3mph).

Average humidity in December
Sentinel, AZ

Average humidity in December - Sentinel, AZ
  • Average humidity in December: 42%

The month with the highest relative humidity is December (42%).
The month with the lowest relative humidity is June (17%).

Average rainfall in December
Sentinel, AZ

Average rainfall in December - Sentinel, AZ
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is July (1.5").
The driest months (with the least rainfall) are April, May and June (0.08").

Average rainfall days in December
Sentinel, AZ

Average rainfall days in December - Sentinel, AZ
  • Average rainfall days in December: 5.4 days

The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is May (1.3 days).

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

Average daylight in December / Average sunshine in December - Sentinel, 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: 7h and 0min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in December
Sentinel, AZ

Average sunshine days in December - Sentinel, AZ
  • Average sunshine days in December: 25 days

The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (13.4 days).

Average UV index in December
Sentinel, AZ

Average UV index in December - Sentinel, AZ
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in December
Sentinel, AZ

Average cloud cover in December - Sentinel, AZ
  • Average cloud cover in December: 19

The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in December
Sentinel, AZ

Average visibility in December - Sentinel, 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).

Sentinel, Arizona, USA

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