Average Weather in September in Olintepec Mexico
Daily high temperatures are around 83°F, rarely falling below 78°F or exceeding 88°F. The lowest daily average high temperature is 83°F on September 15.
Daily low temperatures are around 65°F, rarely falling below 60°F or exceeding 69°F. The highest daily average low temperature is 66°F on September 6.
For reference, on April 18, the hottest day of the year, temperatures in Olintepec typically range from 64°F to 92°F, while on January 12, the coldest day of the year, they range from 53°F to 83°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 Olintepec 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
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 Olintepec, the chance of a wet day over the course of September is very rapidly decreasing, starting the month at 76% and ending it at 53%.
For reference, the year's highest daily chance of a wet day is 77% on August 27, and its lowest chance is 2% on December 9.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Olintepec is very rapidly decreasing, starting the month at 6.0 inches, when it rarely exceeds 8.7 inches or falls below 3.7 inches, and ending the month at 3.9 inches, when it rarely exceeds 6.6 inches or falls below 1.9 inches.
The highest average 31-day accumulation is 6.0 inches on September 2.
Average Monthly Rainfall in September
Over the course of September in Olintepec, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 30 minutes, implying an average daily decrease of 1 minute, 3 seconds, and weekly decrease of 7 minutes, 19 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, 29 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Olintepec is 7:21 AM on September 1 and the latest sunrise is 5 minutes later at 7:26 AM on September 30.
The latest sunset is 7:50 PM on September 1 and the earliest sunset is 25 minutes earlier at 7:24 PM on September 30.
Daylight saving time is observed in Olintepec during 2021, 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 7:00 AM and sets 13 hours, 16 minutes later, at 8:15 PM, while on December 21, the shortest day of the year, it rises at 7:04 AM and sets 11 hours, 0 minutes later, at 6:04 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in September
The figure below presents a compact representation of key lunar data for September 2021. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
Moon Rise, Set & Phases in September
The chance that a given day will be muggy in Olintepec is essentially constant during September, remaining around 1% throughout.
For reference, on June 16, the muggiest day of the year, there are muggy conditions 1% of the time, while on November 21, 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 Olintepec is essentially constant during September, remaining within 0.1 miles per hour of 4.5 miles per hour throughout.
For reference, on March 13, the windiest day of the year, the daily average wind speed is 5.9 miles per hour, while on September 12, the calmest day of the year, the daily average wind speed is 4.4 miles per hour.
The lowest daily average wind speed during September is 4.4 miles per hour on September 15.
Average Wind Speed in September
The hourly average wind direction in Olintepec throughout September is predominantly from the east, with a peak proportion of 45% on September 1.
Wind Direction in September
Temperatures in Olintepec are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.
Time Spent in Various Temperature Bands and the Growing Season in September
The average accumulated growing degree days in Olintepec are rapidly increasing during September, increasing by 680°F, from 5,735°F to 6,415°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Olintepec 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 Olintepec are 18.741 deg latitude, -98.987 deg longitude, and 3,858 ft elevation.
The topography within 2 miles of Olintepec contains very significant variations in elevation, with a maximum elevation change of 909 feet and an average elevation above sea level of 3,910 feet. Within 10 miles contains very significant variations in elevation (2,582 feet). Within 50 miles contains large variations in elevation (15,732 feet).
The area within 2 miles of Olintepec is covered by cropland (89%), within 10 miles by cropland (69%) and trees (23%), and within 50 miles by cropland (39%) and trees (37%).
This report illustrates the typical weather in Olintepec, 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 Olintepec.
For each station, the records are corrected for the elevation difference between that station and Olintepec 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 Olintepec is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Olintepec and a given station.
The stations contributing to this reconstruction are: Benito Juárez International Airport (37%, 78 kilometers, north); Hermanos Serdán International Airport (37%, 80 kilometers, northeast); and Licenciado Adolfo López Mateos International Airport (26%, 90 kilometers, northwest).
Time zones for airports and weather stations are provided by AskGeo.com .