December weather forecast
Pioneer, AZ

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Weather in December

The first month of the winter, December, is still a comfortable month in Pioneer, Arizona, with an average temperature ranging between min 47.3°F (8.5°C) and max 61°F (16.1°C).

Temperature

December stands out as Pioneer's coldest month, with temperatures ranging between an average high of 61°F (16.1°C) and a low of 47.3°F (8.5°C).

Humidity

January and December, with an average relative humidity of 40%, are the most humid months.

Rainfall

In Pioneer, in December, it is raining for 4.4 days, with typically 0.35" (9mm) of accumulated precipitation. In Pioneer, during the entire year, the rain falls for 47.8 days and collects up to 5.24" (133mm) of precipitation.

Daylight

December has the shortest days of the year, with an average of 10h and 0min of daylight.
On the first day of the month, sunrise is at 7:22 am and sunset at 5:27 pm. On the last day of December, sunrise is at 7:40 am and sunset at 5:37 pm MST.

Sunshine

The month with the least sunshine is December, with an average of 7h of sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, the UV index of 3 transforms into the following advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

December is the month when Pioneer experiences its coldest temperatures, averaging a high of 61°F (16.1°C) and a low of 47.3°F (8.5°C).

What is the average December temperature?

In December, the average high-temperature and low-temperature are 61°F (16.1°C) and 47.3°F (8.5°C) respectively.

What are the most humid months in Pioneer?

The months with the highest humidity are January and December, with an average relative humidity of 40%.

What is the average humidity in December?

In December, the average relative humidity is 40%.

How many days does it rain in December?

In December, the rain falls for 4.4 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 10h and 0min of daylight.

How many hours of daylight does Pioneer have in December?

In Pioneer, Arizona, the average day length in December is 9h and 58min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:22 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:37 pm MST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 7h of sunshine.

How many hours of sunshine does Pioneer have in December?

In Pioneer, the average sunshine duration in December is 7h.

When is the lowest UV index in Pioneer?

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

How high is the UV index in December?

The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Pioneer, AZ

Average temperature in December - Pioneer, AZ
  • Average high temperature in December: 61°F

The warmest month (with the highest average high temperature) is July (103.1°F).
The month with the lowest average high temperature is December (61°F).

  • Average low temperature in December: 47.3°F

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

Average pressure in December
Pioneer, AZ

Average pressure in December - Pioneer, AZ
  • Average pressure in December: 30.05"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.74"Hg).

Average wind speed in December
Pioneer, AZ

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

The windiest months (with the highest average wind speed) are April and May (8.8mph).
The calmest months (with the lowest average wind speed) are January, November and December (6mph).

Average humidity in December
Pioneer, AZ

Average humidity in December - Pioneer, AZ
  • Average humidity in December: 40%

The months with the highest relative humidity are January and December (40%).
The month with the lowest relative humidity is June (17%).

Average rainfall in December
Pioneer, AZ

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

The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is May (0.08").

Average rainfall days in December
Pioneer, AZ

Average rainfall days in December - Pioneer, AZ
  • Average rainfall days in December: 4.4 days

The month with the highest number of rainy days is July (8.1 days).
The month with the least rainy days is May (1.4 days).

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

Average daylight in December / Average sunshine in December - Pioneer, AZ
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
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
Pioneer, AZ

Average sunshine days in December - Pioneer, AZ
  • Average sunshine days in December: 26.2 days

The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is August (19.5 days).

Average UV index in December
Pioneer, AZ

Average UV index in December - Pioneer, 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
Pioneer, AZ

Average cloud cover in December - Pioneer, AZ
  • Average cloud cover in December: 18

The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in December
Pioneer, AZ

Average visibility in December - Pioneer, 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).

Pioneer, Arizona, USA

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