Average Weather in September in Pleasanton Kansas, United States
Daily high temperatures decrease by 11°F, from 85°F to 75°F, rarely falling below 63°F or exceeding 95°F.
Daily low temperatures decrease by 11°F, from 66°F to 55°F, rarely falling below 43°F or exceeding 74°F.
For reference, on July 21, the hottest day of the year, temperatures in Pleasanton typically range from 71°F to 90°F, while on January 6, the coldest day of the year, they range from 25°F to 42°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
Qubadlı, Azerbaijan (6,553 miles away); Xi’an, China (7,215 miles); and Daegu, South Korea (6,628 miles) are the far-away foreign places with temperatures most similar to Pleasanton (view comparison).
The month of September in Pleasanton experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 29% throughout the month.
The clearest day of the month is September 19, with clear, mostly clear, or partly cloudy conditions 72% of the time.
For reference, on February 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 50%, while on August 27, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.
Cloud Cover Categories in September
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Pleasanton, the chance of a wet day over the course of September is gradually decreasing, starting the month at 30% and ending it at 28%.
For reference, the year's highest daily chance of a wet day is 45% on June 8, and its lowest chance is 12% on January 12.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Pleasanton is essentially constant, remaining about 3.8 inches throughout, and rarely exceeding 7.4 inches or falling below 1.0 inches.
The highest average 31-day accumulation is 4.0 inches on September 16.
Average Monthly Rainfall in September
Over the course of September in Pleasanton, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 10 minutes, implying an average daily decrease of 2 minutes, 25 seconds, and weekly decrease of 16 minutes, 58 seconds.
The shortest day of the month is September 30, with 11 hours, 50 minutes of daylight and the longest day is September 1, with 13 hours, 0 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Pleasanton is 6:48 AM on September 1 and the latest sunrise is 25 minutes later at 7:13 AM on September 30.
The latest sunset is 7:48 PM on September 1 and the earliest sunset is 45 minutes earlier at 7:03 PM on September 30.
Daylight saving time is observed in Pleasanton 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 5:55 AM and sets 14 hours, 49 minutes later, at 8:45 PM, while on December 21, the shortest day of the year, it rises at 7:31 AM and sets 9 hours, 31 minutes later, at 5:02 PM.
Sunrise & Sunset with Twilight in September
The chance that a given day will be muggy in Pleasanton is very rapidly decreasing during September, falling from 51% to 13% over the course of the month.
For reference, on July 22, the muggiest day of the year, there are muggy conditions 76% of the time, while on December 2, 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 Pleasanton is increasing during September, increasing from 8.4 miles per hour to 9.6 miles per hour over the course of the month.
For reference, on April 1, the windiest day of the year, the daily average wind speed is 12.3 miles per hour, while on August 7, the calmest day of the year, the daily average wind speed is 7.7 miles per hour.
Average Wind Speed in September
Wind Direction in September
The growing season in Pleasanton typically lasts for 6.8 months (209 days), from around April 5 to around October 31, rarely starting before March 18 or after April 21, and rarely ending before October 13 or after November 20.
The month of September in Pleasanton 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 Pleasanton are rapidly increasing during September, increasing by 565°F, from 3,373°F to 3,938°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Pleasanton is decreasing during September, falling by 1.1 kWh, from 5.8 kWh to 4.7 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 Pleasanton are 38.178 deg latitude, -94.711 deg longitude, and 846 ft elevation.
The topography within 2 miles of Pleasanton contains only modest variations in elevation, with a maximum elevation change of 240 feet and an average elevation above sea level of 850 feet. Within 10 miles also contains only modest variations in elevation (344 feet). Within 50 miles contains only modest variations in elevation (525 feet).
The area within 2 miles of Pleasanton is covered by cropland (75%) and trees (14%), within 10 miles by cropland (62%) and trees (35%), and within 50 miles by cropland (75%) and trees (14%).
This report illustrates the typical weather in Pleasanton 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 6 weather stations near enough to contribute to our estimation of the temperature and dew point in Pleasanton.
For each station, the records are corrected for the elevation difference between that station and Pleasanton 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 Pleasanton is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Pleasanton and a given station.
The stations contributing to this reconstruction are: New Century AirCenter (20%, 74 kilometers, north); Johnson County Executive Airport (20%, 75 kilometers, north); Atkinson Municipal Airport (18%, 81 kilometers, south); Chanute Martin Johnson Airport (16%, 88 kilometers, southwest); Clinton Memorial Airport (15%, 92 kilometers, east); and Skyhaven Airport (12%, 104 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .