December weather forecast
Petrified Forest National Park, AZ

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Petrified rock pieces in the Petrified Forest National Park, Arizona
Petrified rock pieces in the Petrified Forest National Park, Arizona

Weather in December

The first month of the winter, December, is also a frosty month in Petrified Forest National Park, Arizona, with temperature in the range of an average high of 48.9°F (9.4°C) and an average low of 21°F (-6.1°C).

Temperature

A moderate decline in the average high-temperature is seen during December, decreasing from a mild 59°F (15°C) in November to a chilly 48.9°F (9.4°C). Nighttime temperatures exhibit a substantial dip from daytime highs during December, averaging at a subzero cold 21°F (-6.1°C).

Rainfall

Throughout December, in Petrified Forest National Park, 0.79" (20mm) of precipitation is accumulated. During the entire year, Petrified Forest National Park aggregates up to 10.55" (268mm) of precipitation.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:09 am and sunset at 5:07 pm. On the last day of December, sunrise is at 7:27 am and sunset at 5:17 pm MST.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature?

In December, in Petrified Forest National Park, the average high-temperature is 48.9°F (9.4°C), and the average low-temperature is 21°F (-6.1°C).

How much does it rain in December?

Throughout December, 0.79" (20mm) 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 48min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 50min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:17 pm MST.

Average temperature in December
Petrified Forest National Park, AZ

Average temperature in December - Petrified Forest National Park, AZ
  • Average high temperature in December: 49°F

The warmest month (with the highest average high temperature) is July (92°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in December: 21°F

The month with the highest average low temperature is July (60°F).
The coldest months (with the lowest average low temperature) are January and December (21°F).

Average rainfall in December
Petrified Forest National Park, AZ

Average rainfall in December - Petrified Forest National Park, AZ
  • Average rainfall in December: 0.8"

The wettest month (with the highest rainfall) is August (1.6").
The driest month (with the least rainfall) is June (0.3").

Average daylight in December
Petrified Forest National Park, AZ

Average daylight in December - Petrified Forest National Park, AZ
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

Petrified Forest National Park, Arizona, USA

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