Average Weather in September in San Antonio el Paso Mexico
Daily high temperatures are around 65°F, rarely falling below 57°F or exceeding 70°F.
Daily low temperatures are around 47°F, rarely falling below 41°F or exceeding 52°F. The highest daily average low temperature is 48°F on September 6.
For reference, on May 10, the hottest day of the year, temperatures in San Antonio el Paso typically range from 48°F to 72°F, while on January 12, the coldest day of the year, they range from 37°F to 62°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 San Antonio el Paso experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 82% throughout the month. The highest chance of overcast or mostly cloudy conditions is 85% on September 15.
The clearest day of the month is September 30, with clear, mostly clear, or partly cloudy conditions 20% of the time.
For reference, on September 15, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 85%, while on March 11, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 66%.
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 San Antonio el Paso, the chance of a wet day over the course of September is very rapidly decreasing, starting the month at 77% and ending it at 59%.
For reference, the year's highest daily chance of a wet day is 78% on July 4, and its lowest chance is 9% on January 16.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in San Antonio el Paso is decreasing, starting the month at 7.2 inches, when it rarely exceeds 11.1 inches or falls below 4.0 inches, and ending the month at 6.2 inches, when it rarely exceeds 10.1 inches or falls below 2.9 inches.
The highest average 31-day accumulation is 7.3 inches on September 11.
Average Monthly Rainfall in September
Over the course of September in San Antonio el Paso, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 33 minutes, implying an average daily decrease of 1 minute, 8 seconds, and weekly decrease of 7 minutes, 55 seconds.
The shortest day of the month is September 30, with 11 hours, 58 minutes of daylight and the longest day is September 1, with 12 hours, 31 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in San Antonio el Paso is 7:18 AM on September 1 and the latest sunrise is 6 minutes later at 7:25 AM on September 30.
The latest sunset is 7:49 PM on September 1 and the earliest sunset is 26 minutes earlier at 7:23 PM on September 30.
Daylight saving time is observed in San Antonio el Paso during 2019, but it neither starts nor ends during September, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 6:55 AM and sets 13 hours, 21 minutes later, at 8:16 PM, while on December 22, the shortest day of the year, it rises at 7:05 AM and sets 10 hours, 55 minutes later, at 6:00 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in September
The chance that a given day will be muggy in San Antonio el Paso is essentially constant during September, remaining around 0% throughout.
For reference, on June 5, 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 September
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in San Antonio el Paso is essentially constant during September, remaining within 0.1 miles per hour of 6.3 miles per hour throughout.
For reference, on June 28, the windiest day of the year, the daily average wind speed is 6.8 miles per hour, while on December 22, the calmest day of the year, the daily average wind speed is 4.9 miles per hour.
Average Wind Speed in September
Wind Direction in September
The growing season in San Antonio el Paso typically lasts for 8.4 months (259 days), from around March 2 to around November 15, rarely starting before January 28 or after March 27, and rarely ending before October 16 or after December 29.
The month of September in San Antonio el Paso 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 San Antonio el Paso are gradually increasing during September, increasing by 168°F, from 1,648°F to 1,816°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in San Antonio el Paso is essentially constant during September, remaining within 0.1 kWh of 5.9 kWh throughout.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of San Antonio el Paso are 20.147 deg latitude, -98.616 deg longitude, and 8,724 ft elevation.
The topography within 2 miles of San Antonio el Paso contains very significant variations in elevation, with a maximum elevation change of 1,483 feet and an average elevation above sea level of 8,837 feet. Within 10 miles contains very significant variations in elevation (5,200 feet). Within 50 miles also contains extreme variations in elevation (12,093 feet).
The area within 2 miles of San Antonio el Paso is covered by trees (54%) and shrubs (37%), within 10 miles by trees (37%) and shrubs (33%), and within 50 miles by cropland (35%) and trees (25%).
This report illustrates the typical weather in San Antonio el Paso 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 San Antonio el Paso.
For each station, the records are corrected for the elevation difference between that station and San Antonio el Paso 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 San Antonio el Paso is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between San Antonio el Paso and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .