Average Weather in September in Bylas Arizona, United States
Daily high temperatures decrease by 6°F, from 94°F to 88°F, rarely falling below 81°F or exceeding 100°F.
Daily low temperatures decrease by 9°F, from 71°F to 62°F, rarely falling below 54°F or exceeding 76°F.
For reference, on June 29, the hottest day of the year, temperatures in Bylas typically range from 73°F to 100°F, while on January 4, the coldest day of the year, they range from 37°F to 60°F.
Average High and Low Temperature in September
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. 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 September
The month of September in Bylas experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 28% to 17%. The lowest chance of overcast or mostly cloudy conditions is 17% on September 28.
The clearest day of the month is September 28, with clear, mostly clear, or partly cloudy conditions 83% of the time.
For reference, on July 30, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 45%, while on September 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 83%.
Cloud Cover Categories in September
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 Bylas, the chance of a wet day over the course of September is very rapidly decreasing, starting the month at 26% and ending it at 12%.
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 9.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Bylas is gradually decreasing, starting the month at 1.4 inches, when it rarely exceeds 2.3 inches or falls below 0.6 inches, and ending the month at 1.0 inches, when it rarely exceeds 2.2 inches or falls below 0.1 inches.
Average Monthly Rainfall in September
Over the course of September in Bylas, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 58 minutes, implying an average daily decrease of 2 minutes, 1 second, and weekly decrease of 14 minutes, 6 seconds.
The shortest day of the month is September 30, with 11 hours, 52 minutes of daylight and the longest day is September 1, with 12 hours, 51 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Bylas is 5:54 AM on September 1 and the latest sunrise is 19 minutes later at 6:14 AM on September 30.
The latest sunset is 6:45 PM on September 1 and the earliest sunset is 39 minutes earlier at 6:06 PM on September 30.
Daylight saving time is not observed in Bylas during 2018.
For reference, on June 21, the longest day of the year, the Sun rises at 5:11 AM and sets 14 hours, 21 minutes later, at 7:32 PM, while on December 21, the shortest day of the year, it rises at 7:19 AM and sets 9 hours, 58 minutes later, at 5:17 PM.
Sunrise & Sunset with Twilight in September
The chance that a given day will be muggy in Bylas is gradually decreasing during September, falling from 3% to 0% over the course of the month.
For reference, on August 4, the muggiest day of the year, there are muggy conditions 8% of the time, while on October 10, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in September
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Bylas is gradually increasing during September, increasing from 6.1 miles per hour to 7.0 miles per hour over the course of the month.
For reference, on April 22, the windiest day of the year, the daily average wind speed is 8.3 miles per hour, while on August 16, the calmest day of the year, the daily average wind speed is 5.7 miles per hour.
Average Wind Speed in September
Wind Direction in September
The growing season in Bylas typically lasts for 9.3 months (284 days), from around February 19 to around November 29, rarely starting before January 7 or after March 17, and rarely ending before November 12 or after December 18.
The month of September in Bylas is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in September
The average accumulated growing degree days in Bylas are rapidly increasing during September, increasing by 788°F, from 4,615°F to 5,404°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Bylas is gradually decreasing during September, falling by 0.5 kWh, from 6.3 kWh to 5.8 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Bylas are 33.134 deg latitude, -110.120 deg longitude, and 2,785 ft elevation.
The topography within 2 miles of Bylas contains significant variations in elevation, with a maximum elevation change of 548 feet and an average elevation above sea level of 2,734 feet. Within 10 miles contains significant variations in elevation (5,666 feet). Within 50 miles also contains extreme variations in elevation (8,930 feet).
The area within 2 miles of Bylas is covered by shrubs (85%) and cropland (11%), within 10 miles by shrubs (93%), and within 50 miles by shrubs (75%) and trees (21%).
This report illustrates the typical weather in Bylas 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Bylas.
For each station, the records are corrected for the elevation difference between that station and Bylas 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 Bylas is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Bylas and a given station.
The stations contributing to this reconstruction are: Safford Municipal Airport (53%, 55 kilometers, southeast); Show Low Municipal Airport (10%, 126 kilometers, north); Allied Airstrip (15%, 129 kilometers, southwest); Phoenix-Mesa Gateway Airport (12%, 145 kilometers, west); and Payson Airport (9%, 168 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .