December weather forecast
Yuma, AZ

Arizona/California border with the Colorado River in Yuma, Arizona
Arizona/California border with the Colorado River in Yuma, Arizona

Weather in December

December, the first month of the winter in Yuma, is also an enjoyable month, with an average temperature varying between 66°F (18.9°C) and 50.5°F (10.3°C).

Temperature

December is the coldest month, with an average high-temperature of 66°F (18.9°C) and an average low-temperature of 50.5°F (10.3°C).

Humidity

The most humid month in Yuma is December, with an average relative humidity of 38%.

Rainfall

In Yuma, during 2.7 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. Throughout the year, in Yuma, there are 31.6 rainfall days, and 2.8" (71mm) of precipitation is accumulated.

Daylight

December has the shortest days of the year in Yuma, with an average of 10h and 2min of daylight.
On the first day of December, sunrise is at 7:22 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:42 pm MST.

Sunshine

December has the least sunshine of the year in Yuma, with an average of 7.2h of sunshine.

UV index

The months with the lowest UV index in Yuma are November and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 4 in December transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the coldest month in Yuma?

December is the coldest month in Yuma, with an average high-temperature of 66°F (18.9°C) and an average low-temperature of 50.5°F (10.3°C).

What is the temperature in December in Yuma?

In December, the average high-temperature is 66°F (18.9°C), and the average low-temperature is 50.5°F (10.3°C).

What is the most humid month in Yuma?

December is the most humid month in Yuma, Arizona, with an average relative humidity of 38%.

What is the average humidity in December in Yuma?

In Yuma, Arizona, the average relative humidity in December is 38%.

How many days does it rain in December in Yuma?

In December, in Yuma, Arizona, the rain falls for 2.7 days. Throughout December, 0.24" (6mm) of precipitation is accumulated.

What is the month with the shortest days in Yuma?

The month with the shortest days is December, with an average of 10h and 2min of daylight.

How many hours of daylight does Yuma have in December?

The average day length in December in Yuma, Arizona, is 10h and 2min.

When are sunrise and sunset in December in Yuma?

On the first day of December in Yuma, sunrise is at 7:22 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:42 pm MST.

What is the month with the least sunshine in Yuma?

The month with the least sunshine is December, with an average of 7.2h of sunshine.

How many hours of sunshine does Yuma have in December?

In Yuma, the average sunshine duration in December is 7.2h.

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

November and December, with an average maximum UV index of 4, are months with the lowest UV index in Yuma.

What is the UV index reading in December in Yuma?

In December, the average daily maximum UV index in Yuma is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Yuma, AZ

Average temperature in December - Yuma, AZ
  • Average high temperature in December: 66°F

The warmest month (with the highest average high temperature) is July (105.3°F).
The month with the lowest average high temperature is December (66°F).

  • Average low temperature in December: 50.5°F

The month with the highest average low temperature is August (86.4°F).
The coldest month (with the lowest average low temperature) is December (50.5°F).

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Average pressure in December
Yuma, AZ

Average pressure in December - Yuma, 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 (29.74"Hg).

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Average wind speed in December
Yuma, AZ

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

The windiest months (with the highest average wind speed) are April and July (8.5mph).
The calmest month (with the lowest average wind speed) is November (6.6mph).

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Average humidity in December
Yuma, AZ

Average humidity in December - Yuma, AZ
  • Average humidity in December: 38%

The month with the highest relative humidity is December (38%).
The month with the lowest relative humidity is June (22%).

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Average rainfall in December
Yuma, AZ

Average rainfall in December - Yuma, AZ
  • Average rainfall in December: 0.24"

The wettest months (with the highest rainfall) are July and September (0.39").
The driest months (with the least rainfall) are May and June (0.04").

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Average rainfall days in December
Yuma, AZ

Average rainfall days in December - Yuma, AZ
  • Average rainfall days in December: 2.7 days

The month with the highest number of rainy days is July (5.8 days).
The month with the least rainy days is May (0.8 days).

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

Average daylight in December / Average sunshine in December - Yuma, AZ
  • Average daylight in December: 10h and 2min

The month with the longest days is June (Average daylight: 14h and 16min).
The month with the shortest days is December (Average daylight: 10h and 2min).

  • Average sunshine in December: 7h and 12min

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

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Average sunshine days in December
Yuma, AZ

Average sunshine days in December - Yuma, AZ
  • Average sunshine days in December: 27.9 days

The month with the most sunshine days is May (30.2 days).
The month with the least sunshine days is July (22.1 days).

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Average UV index in December
Yuma, AZ

Average UV index in December - Yuma, AZ
  • Average UV index in December: 4

The months with the highest UV index are June, July, August and September (UV index 8).
The months with the lowest UV index are November and December (UV index 4).

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Average cloud cover in December
Yuma, AZ

Average cloud cover in December - Yuma, AZ
  • Average cloud cover in December: 17

The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in December
Yuma, AZ

Average visibility in December - Yuma, 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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