Average Weather in September in Calnali Mexico
Daily high temperatures decrease by 2°F, from 80°F to 78°F, rarely falling below 71°F or exceeding 85°F.
Daily low temperatures decrease by 2°F, from 65°F to 62°F, rarely falling below 56°F or exceeding 68°F. The highest daily average low temperature is 65°F on September 2.
For reference, on May 10, the hottest day of the year, temperatures in Calnali typically range from 64°F to 88°F, while on January 6, the coldest day of the year, they range from 51°F to 74°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 Calnali experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 76% to 72%. The highest chance of overcast or mostly cloudy conditions is 78% on September 16.
The clearest day of the month is September 30, with clear, mostly clear, or partly cloudy conditions 28% of the time.
For reference, on September 15, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 78%, while on March 15, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 65%.
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 Calnali, the chance of a wet day over the course of September is very rapidly decreasing, starting the month at 68% and ending it at 52%.
For reference, the year's highest daily chance of a wet day is 68% on September 2, and its lowest chance is 14% on January 17.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Calnali is decreasing, starting the month at 8.3 inches, when it rarely exceeds 13.6 inches or falls below 4.0 inches, and ending the month at 7.8 inches, when it rarely exceeds 12.8 inches or falls below 3.4 inches.
The highest average 31-day accumulation is 9.0 inches on September 14.
Average Monthly Rainfall in September
Over the course of September in Calnali, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 34 minutes, implying an average daily decrease of 1 minute, 11 seconds, and weekly decrease of 8 minutes, 14 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, 32 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Calnali is 7:18 AM on September 1 and the latest sunrise is 7 minutes later at 7:25 AM on September 30.
The latest sunset is 7:50 PM on September 1 and the earliest sunset is 27 minutes earlier at 7:23 PM on September 30.
Daylight saving time is observed in Calnali 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 6:54 AM and sets 13 hours, 24 minutes later, at 8:18 PM, while on December 22, the shortest day of the year, it rises at 7:06 AM and sets 10 hours, 52 minutes later, at 5:58 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in September
The chance that a given day will be muggy in Calnali is rapidly decreasing during September, falling from 44% to 32% over the course of the month.
The highest chance of a muggy day during September is 45% on September 7.
For reference, on September 6, the muggiest day of the year, there are muggy conditions 45% of the time, while on December 29, 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 Calnali is essentially constant during September, remaining around 5.4 miles per hour throughout.
For reference, on April 19, the windiest day of the year, the daily average wind speed is 6.6 miles per hour, while on December 17, the calmest day of the year, the daily average wind speed is 4.7 miles per hour.
Average Wind Speed in September
Wind Direction in September
Temperatures in Calnali 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 Calnali are rapidly increasing during September, increasing by 601°F, from 4,795°F to 5,396°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Calnali is essentially constant during September, remaining within 0.2 kWh of 5.8 kWh throughout.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Calnali are 20.897 deg latitude, -98.585 deg longitude, and 3,488 ft elevation.
The topography within 2 miles of Calnali contains large variations in elevation, with a maximum elevation change of 2,451 feet and an average elevation above sea level of 3,600 feet. Within 10 miles contains large variations in elevation (5,732 feet). Within 50 miles also contains extreme variations in elevation (10,397 feet).
The area within 2 miles of Calnali is covered by cropland (74%) and trees (26%), within 10 miles by cropland (54%) and trees (46%), and within 50 miles by cropland (54%) and trees (31%).
This report illustrates the typical weather in Calnali 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 is only a single weather station, Tulancingo, in our network suitable to be used as a proxy for the historical temperature and dew point records of Calnali.
At a distance of 93 kilometers from Calnali, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and Calnali according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
Time zones for aiports and weather stations are provided by AskGeo.com .