Average Weather in December in Snowflake Arizona, United States
Daily high temperatures decrease by 5°F, from 51°F to 46°F, rarely falling below 35°F or exceeding 62°F. The lowest daily average high temperature is 46°F on December 30.
Daily low temperatures decrease by 4°F, from 28°F to 24°F, rarely falling below 13°F or exceeding 38°F.
For reference, on July 3, the hottest day of the year, temperatures in Snowflake typically range from 60°F to 89°F, while on January 4, the coldest day of the year, they range from 24°F to 46°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
Guadahortuna, Spain (5,597 miles away); An Nabk, Syria (7,245 miles); and Alik Ghund, Pakistan (7,952 miles) are the far-away foreign places with temperatures most similar to Snowflake (view comparison).
The month of December in Snowflake 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 3, with clear, mostly clear, or partly cloudy conditions 68% of the time.
For reference, on July 29, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 43%, while on June 14, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 83%.
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 Snowflake, the chance of a wet day over the course of December is essentially constant, remaining around 13% throughout.
For reference, the year's highest daily chance of a wet day is 39% on August 4, and its lowest chance is 3% on June 10.
Over the course of December in Snowflake, the chance of a day with only rain remains an essentially constant 9% throughout, the chance of a day with mixed snow and rain remains an essentially constant 2% throughout, and the chance of a day with only snow remains an essentially constant 2% throughout.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Snowflake is essentially constant, remaining about 0.9 inches throughout, and rarely exceeding 2.1 inches.
The highest average 31-day accumulation is 0.9 inches on December 17.
Average Monthly Rainfall in December
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day liquid-equivalent snowfall during December in Snowflake is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.4 inches or falling below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in December
Over the course of December in Snowflake, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 51 minutes of daylight and the longest day is December 1, with 10 hours, 1 minute of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Snowflake is 7:08 AM on December 1 and the latest sunrise is 18 minutes later at 7:26 AM on December 31.
The earliest sunset is 5:09 PM on December 5 and the latest sunset is 10 minutes later at 5:20 PM on December 31.
Daylight saving time is not observed in Snowflake during 2018.
For reference, on June 21, the longest day of the year, the Sun rises at 5:08 AM and sets 14 hours, 28 minutes later, at 7:36 PM, while on December 21, the shortest day of the year, it rises at 7:23 AM and sets 9 hours, 51 minutes later, at 5:13 PM.
Sunrise & Sunset with Twilight in December
The chance that a given day will be muggy in Snowflake is essentially constant during December, remaining around 0% throughout.
For reference, on August 7, the muggiest day of the year, there are muggy conditions 0% 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 Snowflake is essentially constant during December, remaining within 0.2 miles per hour of 7.4 miles per hour throughout.
For reference, on April 10, the windiest day of the year, the daily average wind speed is 10.0 miles per hour, while on August 16, the calmest day of the year, the daily average wind speed is 5.6 miles per hour.
Average Wind Speed in December
Wind Direction in December
The growing season in Snowflake typically lasts for 6.0 months (182 days), from around April 25 to around October 24, rarely starting before April 6 or after May 13, and rarely ending before October 4 or after November 13.
The month of December in Snowflake is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in December
The average accumulated growing degree days in Snowflake are essentially constant during December, remaining within 6°F of 3,552°F throughout.
Growing Degree Days in December
The average daily incident shortwave solar energy in Snowflake is essentially constant during December, remaining within 0.1 kWh of 3.3 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 3.2 kWh on December 24.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Snowflake are 34.513 deg latitude, -110.078 deg longitude, and 5,653 ft elevation.
The topography within 2 miles of Snowflake contains only modest variations in elevation, with a maximum elevation change of 190 feet and an average elevation above sea level of 5,625 feet. Within 10 miles contains only modest variations in elevation (820 feet). Within 50 miles contains very significant variations in elevation (7,313 feet).
The area within 2 miles of Snowflake is covered by shrubs (81%) and cropland (19%), within 10 miles by shrubs (97%), and within 50 miles by shrubs (72%) and trees (26%).
This report illustrates the typical weather in Snowflake 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Snowflake.
For each station, the records are corrected for the elevation difference between that station and Snowflake 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 Snowflake is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Snowflake and a given station.
The stations contributing to this reconstruction are: Show Low Municipal Airport (53%, 29 kilometers, south); Saint Johns Industrial Air Park (23%, 64 kilometers, east); Winslow Municipal Airport (15%, 82 kilometers, northwest); and Payson Airport (9%, 119 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .