Average Weather in December in Golden Valley Arizona, United States
Daily high temperatures decrease by 4°F, from 59°F to 55°F, rarely falling below 46°F or exceeding 68°F. The lowest daily average high temperature is 55°F on December 23.
Daily low temperatures decrease by 3°F, from 38°F to 35°F, rarely falling below 26°F or exceeding 46°F. The lowest daily average low temperature is 35°F on December 26.
For reference, on July 10, the hottest day of the year, temperatures in Golden Valley typically range from 74°F to 100°F, while on December 26, the coldest day of the year, they range from 35°F to 55°F.
Average High and Low Temperature in December
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in December
The month of December in Golden Valley experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 34% throughout the month.
The clearest day of the month is December 1, with clear, mostly clear, or partly cloudy conditions 68% of the time.
For reference, on February 19, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 39%, while on September 17, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 88%.
Cloud Cover Categories in December
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Golden Valley, the chance of a wet day over the course of December is essentially constant, remaining around 8% throughout.
For reference, the year's highest daily chance of a wet day is 15% on August 8, and its lowest chance is 2% on May 15.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Golden Valley is essentially constant, remaining about 0.6 inches throughout, and rarely exceeding 2.0 inches or falling below -0.0 inches.
Average Monthly Rainfall in December
Over the course of December in Golden Valley, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 47 minutes of daylight and the longest day is December 1, with 9 hours, 57 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Golden Valley is 7:27 AM on December 1 and the latest sunrise is 18 minutes later at 7:45 AM on December 31.
The earliest sunset is 5:24 PM on December 4 and the latest sunset is 11 minutes later at 5:35 PM on December 31.
Daylight saving time is not observed in Golden Valley during 2020.
For reference, on June 20, the longest day of the year, the Sun rises at 5:22 AM and sets 14 hours, 32 minutes later, at 7:54 PM, while on December 21, the shortest day of the year, it rises at 7:41 AM and sets 9 hours, 47 minutes later, at 5:28 PM.
Sunrise & Sunset with Twilight in December
The chance that a given day will be muggy in Golden Valley is essentially constant during December, remaining around 0% throughout.
For reference, on July 17, the muggiest day of the year, there are muggy conditions 4% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in December
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Golden Valley is essentially constant during December, remaining within 0.1 miles per hour of 8.1 miles per hour throughout.
For reference, on June 19, the windiest day of the year, the daily average wind speed is 8.9 miles per hour, while on September 5, the calmest day of the year, the daily average wind speed is 7.3 miles per hour.
The highest daily average wind speed during December is 8.2 miles per hour on December 10.
Average Wind Speed in December
The hourly average wind direction in Golden Valley throughout December is predominantly from the north, with a peak proportion of 47% on December 30.
Wind Direction in December
The growing season in Golden Valley typically lasts for 9.0 months (272 days), from around February 28 to around November 26, rarely starting before January 27 or after March 28, and rarely ending before November 9 or after December 14.
The month of December in Golden Valley is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly decreasing from 38% to 1% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in December
The average accumulated growing degree days in Golden Valley are gradually increasing during December, increasing by 50°F, from 5,807°F to 5,857°F, over the course of the month.
Growing Degree Days in December
The average daily incident shortwave solar energy in Golden Valley is essentially constant during December, remaining within 0.1 kWh of 3.1 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 3.0 kWh on December 22.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Golden Valley are 35.223 deg latitude, -114.223 deg longitude, and 2,818 ft elevation.
The topography within 2 miles of Golden Valley contains only modest variations in elevation, with a maximum elevation change of 279 feet and an average elevation above sea level of 2,812 feet. Within 10 miles contains only modest variations in elevation (3,579 feet). Within 50 miles also contains extreme variations in elevation (7,897 feet).
The area within 2 miles of Golden Valley is covered by shrubs (100%), within 10 miles by shrubs (99%), and within 50 miles by shrubs (95%).
This report illustrates the typical weather in Golden Valley year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Golden Valley.
For each station, the records are corrected for the elevation difference between that station and Golden Valley according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Golden Valley is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Golden Valley and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .