December weather forecast and climate
Yuma, AZ

Aerial view of the Arizona/California border with the Colorado River in Yuma, Arizona
Aerial view of the Arizona/California border with the Colorado River in Yuma, Arizona
December is the coldest month in Yuma with the average low temperature of 46°F (7.8°C) and the average high temperature of 69.1°F (20.6°C). The temperatures rarely see 80.1°F (26.7°C) during the month and the nights mostly stay below 50°F (10°C).
Yuma winters do not experience snowfall, little rain and are delightful due to the mild conditions.
December sees an influx of tourists from colder regions of America to enjoy the warm days with 8 hours of sunshine. It is prudent to pack warm clothes, as nights in arid areas are cold during the winter.

What is the coldest month in Yuma?

December is the coldest month in Yuma, Arizona, with an average high-temperature of 68.4°F (20.2°C) and an average low-temperature of 46.6°F (8.1°C).

What is the temperature in December in Yuma?

In December, in Yuma, Arizona, the average high-temperature is 68.4°F (20.2°C), and the average low-temperature is 46.6°F (8.1°C).

How much does it rain in Yuma in December?

In December, in Yuma, the rain falls for 2.1 days. Throughout December, 0.4" (11.4mm) of precipitation is accumulated.
Average temperature in December - Yuma, AZ
  • Average high temperature in December: 68.3°F

The warmest month (with the highest average high temperature) is July (106.8°F).
The month with the lowest average high temperature is December (68.3°F).

  • Average low temperature in December: 46.6°F

The month with the highest average low temperature is August (82.3°F).
The coldest month (with the lowest average low temperature) is December (46.6°F).

Average rainfall in December - Yuma, AZ
  • Average rainfall in December: 0.5"

Wettest months (with the highest rainfall) are August, September and December (0.5").
Driest months (with the lowest rainfall) are May and June (0").

Average rainfall days in December - Yuma, AZ
  • Average rainfall days in December: 2.1 days

Months with the highest number of rainy days are January and August (2.3 days).
The month with the lowest number of rainy days is June (0.2 days).

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

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10h).

  • Average sunshine in December: 8.2h

The month with most sunshine is June (Average sunshine: 13.8h).
The month with least sunshine is December (Average sunshine: 8.2h).

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

The month with the highest UV index is July (UV index 11).
Months with the lowest UV index are January and December (UV index 3).

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