Average Weather in September in Santa Justina Ecatepec Mexico
Daily low temperatures are around 53°F, rarely falling below 47°F or exceeding 57°F. The highest daily average low temperature is 54°F on September 13.
For reference, on May 8, the hottest day of the year, temperatures in Santa Justina Ecatepec typically range from 52°F to 78°F, while on January 12, the coldest day of the year, they range from 42°F to 69°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
Cliza, Bolivia (3,371 miles away); Ulenje, Tanzania (9,165 miles); and Faratsiho, Madagascar (10,190 miles) are the far-away foreign places with temperatures most similar to Santa Justina Ecatepec (view comparison).
The month of September in Santa Justina Ecatepec experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 86% throughout the month. The highest chance of overcast or mostly cloudy conditions is 88% on September 15.
The clearest day of the month is September 30, with clear, mostly clear, or partly cloudy conditions 17% of the time.
For reference, on September 14, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 88%, while on February 24, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 70%.
Cloud Cover Categories in September
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Santa Justina Ecatepec, the chance of a wet day over the course of September is very rapidly decreasing, starting the month at 75% and ending it at 56%.
For reference, the year's highest daily chance of a wet day is 77% on July 4, and its lowest chance is 3% on December 13.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Santa Justina Ecatepec is rapidly decreasing, starting the month at 5.5 inches, when it rarely exceeds 8.5 inches or falls below 3.3 inches, and ending the month at 4.0 inches, when it rarely exceeds 6.3 inches or falls below 2.1 inches.
The highest average 31-day accumulation is 5.5 inches on September 4.
Average Monthly Rainfall in September
Over the course of September in Santa Justina Ecatepec, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 31 minutes, implying an average daily decrease of 1 minute, 5 seconds, and weekly decrease of 7 minutes, 34 seconds.
The shortest day of the month is September 30, with 11 hours, 59 minutes of daylight and the longest day is September 1, with 12 hours, 30 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Santa Justina Ecatepec is 7:18 AM on September 1 and the latest sunrise is 6 minutes later at 7:23 AM on September 30.
The latest sunset is 7:48 PM on September 1 and the earliest sunset is 26 minutes earlier at 7:22 PM on September 30.
Daylight saving time is observed in Santa Justina Ecatepec during 2018, 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 6:56 AM and sets 13 hours, 18 minutes later, at 8:14 PM, while on December 21, the shortest day of the year, it rises at 7:02 AM and sets 10 hours, 58 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 Santa Justina Ecatepec is essentially constant during September, remaining around 0% throughout.
For reference, on August 20, 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
The average hourly wind speed in Santa Justina Ecatepec is essentially constant during September, remaining within 0.2 miles per hour of 5.6 miles per hour throughout.
For reference, on March 8, the windiest day of the year, the daily average wind speed is 6.0 miles per hour, while on May 20, the calmest day of the year, the daily average wind speed is 4.6 miles per hour.
The highest daily average wind speed during September is 5.8 miles per hour on September 30.
Average Wind Speed in September
Wind Direction in September
While it does not do so every year, freezing temperatures are seen in Santa Justina Ecatepec over some winters. The day least likely to be in the growing season is January 5, with a 70% chance.
Time Spent in Various Temperature Bands and the Growing Season in September
The average accumulated growing degree days in Santa Justina Ecatepec are increasing during September, increasing by 347°F, from 2,880°F to 3,227°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Santa Justina Ecatepec 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 Santa Justina Ecatepec are 19.311 deg latitude, -98.355 deg longitude, and 7,300 ft elevation.
The topography within 2 miles of Santa Justina Ecatepec contains only modest variations in elevation, with a maximum elevation change of 440 feet and an average elevation above sea level of 7,303 feet. Within 10 miles contains only modest variations in elevation (1,808 feet). Within 50 miles contains very significant variations in elevation (13,904 feet).
The area within 2 miles of Santa Justina Ecatepec is covered by cropland (98%), within 10 miles by cropland (68%) and shrubs (25%), and within 50 miles by cropland (45%) and trees (19%).
This report illustrates the typical weather in Santa Justina Ecatepec 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Santa Justina Ecatepec.
For each station, the records are corrected for the elevation difference between that station and Santa Justina Ecatepec 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 Santa Justina Ecatepec is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Santa Justina Ecatepec and a given station.
The stations contributing to this reconstruction are: Hermanos Serdán International Airport (84%, 17 kilometers, south); Benito Juárez International Airport (9%, 77 kilometers, west); and Tulancingo (7%, 86 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .