December weather forecast
Parker, AZ

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The calm Colorado River, riverside city of Parker in Arizona, and the dramatic mountainous landscape
The calm Colorado River, riverside city of Parker in Arizona, and the dramatic mountainous landscape

Weather in December

December, the heart of winter in Parker, Arizona, sees average high temperatures around 61.2°F (16.2°C). Skies tend to be clearer with light winds and lesser cloud cover. Despite the overall dry conditions, the prospect of winter rain cannot be entirely dismissed. Substantial reductions in daylight hours offer beautiful early sunsets, while the chill in the air progressively intensifies towards the end of the month. If snowfall occurs, it grants a beautiful snowy landscape making December a picturesque month.

Temperature

December, with an average high of 61.2°F (16.2°C) and a low of 47.1°F (8.4°C), signifies the coldest month of the year.

Humidity

January and December, with an average relative humidity of 39%, are the most humid months.

Rainfall

In Parker, in December, it is raining for 3.6 days, with typically 0.35" (9mm) of accumulated precipitation. Throughout the year, there are 39.4 rainfall days, and 3.9" (99mm) of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of December, sunrise is at 7:25 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:38 pm MST.

Sunshine

The month with the least sunshine is December, 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 value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 3 during December translates into the following guidance:
Heed the precautions - Suggestions to avoid sunburn are made. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

December proves to be the coldest month, recording an average maximum temperature of 61.2°F (16.2°C) and a minimum temperature of 47.1°F (8.4°C).

What are December temperatures?

The high-temperature, in December, in Parker, records 61.2°F (16.2°C), while the low-temperature is 47.1°F (8.4°C).

What are the most humid months?

The months with the highest humidity are January and December, with an average relative humidity of 39%.

What is the average humidity in December?

The average relative humidity in December is 39%.

How many days does it rain in December?

In December, the rain falls for 3.6 days. Throughout December, 0.35" (9mm) of precipitation is accumulated.

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.

What is the average length of the day in December?

The average day length in December is 9h and 55min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:25 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:38 pm MST.

What is the month with the least sunshine?

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

How many hours of sunshine does Parker have in December?

In December, the average sunshine duration in Parker 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 intensity in December?

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

Average temperature in December
Parker, AZ

Average temperature in December - Parker, AZ
  • Average high temperature in December: 61.2°F

The warmest month (with the highest average high temperature) is July (104.2°F).
The month with the lowest average high temperature is December (61.2°F).

  • Average low temperature in December: 47.1°F

The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is December (47.1°F).

Average pressure in December
Parker, AZ

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

Average wind speed in December
Parker, AZ

Average wind speed in December - Parker, AZ
  • Average wind speed in December: 6mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).

Average humidity in December
Parker, AZ

Average humidity in December - Parker, AZ
  • Average humidity in December: 39%

The months with the highest relative humidity are January and December (39%).
The month with the lowest relative humidity is June (15%).

Average rainfall in December
Parker, AZ

Average rainfall in December - Parker, AZ
  • Average rainfall in December: 0.35"

The wettest month (with the highest rainfall) is July (0.59").
The driest months (with the least rainfall) are May and June (0.04").

Average rainfall days in December
Parker, AZ

Average rainfall days in December - Parker, AZ
  • Average rainfall days in December: 3.6 days

The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is May (1.2 days).

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

Average daylight in December / Average sunshine in December - Parker, 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: 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
Parker, AZ

Average sunshine days in December - Parker, AZ
  • Average sunshine days in December: 26.8 days

The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (20.2 days).

Average UV index in December
Parker, AZ

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

The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in December
Parker, AZ

Average cloud cover in December - Parker, 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
Parker, AZ

Average visibility in December - Parker, 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).

Parker, Arizona, USA

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