December weather forecast
Gilbert, AZ

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Weather in December

December is decidedly one of the coldest months of the year in Gilbert, Arizona. Evident declines in maximum temperatures create a setting for winter-falls, while the dwindling sunshine hours announce the short winter daytime. The cloud cover percentage peaks during this month, giving the sky a relatively gloomier look than the preceding months.

Temperature

In Gilbert, the lowest average temperatures are observed in December, with a high of 62.4°F (16.9°C) and a low of 46.6°F (8.1°C).

Humidity

The most humid month is December, with an average relative humidity of 44%.

Rainfall

In Gilbert, in December, during 6.8 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. In Gilbert, during the entire year, the rain falls for 60.2 days and collects up to 7.91" (201mm) of precipitation.

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 Gilbert, sunrise is at 7:13 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:30 pm MST.

Sunshine

The month with the least sunshine in Gilbert is December, with an average of 6.8h of sunshine.

UV index

December is the month with the lowest UV index in Gilbert, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In December, a regular UV index of 3 translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

What are the coldest months in Gilbert?

Gilbert's December weather, with an average high temperature of 62.4°F (16.9°C) and an average low temperature of 46.6°F (8.1°C), tends to be the coldest of the year.

What are December temperatures in Gilbert?

During December, Gilbert experiences an average high-temperature of 62.4°F (16.9°C) and a low-temperature of 46.6°F (8.1°C).

What is the most humid month in Gilbert?

The most humid month in Gilbert, Arizona, is December, with an average relative humidity of 44%.

What is the average humidity in December in Gilbert?

The average relative humidity in December is 44%.

How many days does it rain in December in Gilbert?

In Gilbert, during December, the rain falls for 6.8 days and regularly aggregates up to 0.94" (24mm) of precipitation.

What is the month with the shortest days in Gilbert?

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

How many hours of daylight does Gilbert have in December?

In December, the average day length in Gilbert is 9h and 59min.

When is the sunrise / sunset in December in Gilbert?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 5:19 pm. On the last day of the month, in Gilbert, Arizona, sunrise is at 7:30 am and sunset at 5:30 pm MST.

What is the month with the least sunshine in Gilbert?

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

How many hours of sunshine does Gilbert have in December?

The average sunshine duration in December in Gilbert, Arizona, is 6.8h.

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

With an average maximum UV index of 3, December is the month with the lowest UV index in Gilbert, Arizona.

How high is the UV index in December in Gilbert?

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents 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
Gilbert, AZ

Average temperature in December - Gilbert, AZ
  • Average high temperature in December: 62.4°F

The warmest month (with the highest average high temperature) is July (101.8°F).
The month with the lowest average high temperature is December (62.4°F).

  • Average low temperature in December: 46.6°F

The month with the highest average low temperature is August (83.8°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).

Average pressure in December
Gilbert, AZ

Average pressure in December - Gilbert, AZ
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).

Average wind speed in December
Gilbert, AZ

Average wind speed in December - Gilbert, AZ
  • Average wind speed in December: 4.5mph

The windiest months (with the highest average wind speed) are April and May (6.4mph).
The calmest month (with the lowest average wind speed) is December (4.5mph).

Average humidity in December
Gilbert, AZ

Average humidity in December - Gilbert, AZ
  • Average humidity in December: 44%

The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (17%).

Average rainfall in December
Gilbert, AZ

Average rainfall in December - Gilbert, AZ
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is July (1.1").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in December
Gilbert, AZ

Average rainfall days in December - Gilbert, AZ
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is July (10.6 days).
The month with the least rainy days is June (1.2 days).

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

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

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

Average sunshine days in December
Gilbert, AZ

Average sunshine days in December - Gilbert, AZ
  • Average sunshine days in December: 23.6 days

The month with the most sunshine days is May (28.4 days).
The month with the least sunshine days is July (17.6 days).

Average UV index in December
Gilbert, AZ

Average UV index in December - Gilbert, 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
Gilbert, AZ

Average cloud cover in December - Gilbert, AZ
  • Average cloud cover in December: 21

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in December
Gilbert, AZ

Average visibility in December - Gilbert, 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).

Gilbert, Arizona, USA

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