Average Weather in September in Mound City Kansas, United States
Daily high temperatures decrease by 11°F, from 86°F to 75°F, rarely falling below 64°F or exceeding 95°F.
Daily low temperatures decrease by 11°F, from 66°F to 54°F, rarely falling below 43°F or exceeding 73°F.
For reference, on July 21, the hottest day of the year, temperatures in Mound City 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 (6,558 miles away); Xi’an, China (7,216 miles); and Gwangju, South Korea (6,719 miles) are the far-away foreign places with temperatures most similar to Mound City (view comparison).
The month of September in Mound City 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 Mound City, the chance of a wet day over the course of September is gradually decreasing, starting the month at 31% and ending it at 27%.
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 Mound City 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 Mound City, 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, 57 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 12 hours, 60 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Mound City is 6:48 AM on September 1 and the latest sunrise is 25 minutes later at 7:14 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 Mound City 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 5:56 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 7:32 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 Mound City is very rapidly decreasing during September, falling from 52% to 13% over the course of the month.
For reference, on July 22, the muggiest day of the year, there are muggy conditions 78% 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 Mound City is increasing during September, increasing from 8.5 miles per hour to 9.7 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 12.4 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 Mound City typically lasts for 6.8 months (207 days), from around April 5 to around October 29, rarely starting before March 18 or after April 22, and rarely ending before October 11 or after November 17.
The month of September in Mound City 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 Mound City are rapidly increasing during September, increasing by 562°F, from 3,359°F to 3,920°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Mound City 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 Mound City are 38.143 deg latitude, -94.814 deg longitude, and 889 ft elevation.
The topography within 2 miles of Mound City contains only modest variations in elevation, with a maximum elevation change of 272 feet and an average elevation above sea level of 893 feet. Within 10 miles also contains only modest variations in elevation (341 feet). Within 50 miles contains only modest variations in elevation (525 feet).
The area within 2 miles of Mound City is covered by cropland (71%) and trees (26%), within 10 miles by cropland (64%) and trees (28%), and within 50 miles by cropland (75%) and trees (13%).
This report illustrates the typical weather in Mound City 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Mound City.
For each station, the records are corrected for the elevation difference between that station and Mound City 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 Mound City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Mound City and a given station.
The stations contributing to this reconstruction are: New Century AirCenter (24%, 77 kilometers, north); Atkinson Municipal Airport (24%, 78 kilometers, south); Chanute Martin Johnson Airport (23%, 79 kilometers, southwest); Clinton Memorial Airport (16%, 101 kilometers, east); and Emporia Municipal Airport (12%, 123 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .