Average Weather in September in Thomas Oklahoma, United States
Daily high temperatures decrease by 10°F, from 89°F to 78°F, rarely falling below 66°F or exceeding 97°F.
Daily low temperatures decrease by 11°F, from 67°F to 56°F, rarely falling below 45°F or exceeding 73°F.
For reference, on July 22, the hottest day of the year, temperatures in Thomas typically range from 71°F to 94°F, while on January 4, the coldest day of the year, they range from 28°F to 47°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 Thomas experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 28% throughout the month.
The clearest day of the month is September 19, with clear, mostly clear, or partly cloudy conditions 73% of the time.
For reference, on February 15, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 44%, while on October 5, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 75%.
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 Thomas, the chance of a wet day over the course of September is essentially constant, remaining around 23% throughout.
For reference, the year's highest daily chance of a wet day is 39% on June 6, and its lowest chance is 7% on January 11.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Thomas is essentially constant, remaining about 2.5 inches throughout, and rarely exceeding 5.3 inches or falling below 0.5 inches.
Average Monthly Rainfall in September
Over the course of September in Thomas, 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, 4 minutes, implying an average daily decrease of 2 minutes, 13 seconds, and weekly decrease of 15 minutes, 33 seconds.
The shortest day of the month is September 30, with 11 hours, 51 minutes of daylight and the longest day is September 1, with 12 hours, 55 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Thomas is 7:06 AM on September 1 and the latest sunrise is 22 minutes later at 7:29 AM on September 30.
The latest sunset is 8:02 PM on September 1 and the earliest sunset is 42 minutes earlier at 7:20 PM on September 30.
Daylight saving time is observed in Thomas 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 6:19 AM and sets 14 hours, 35 minutes later, at 8:54 PM, while on December 21, the shortest day of the year, it rises at 7:41 AM and sets 9 hours, 44 minutes later, at 5:25 PM.
Sunrise & Sunset with Twilight in September
The chance that a given day will be muggy in Thomas is very rapidly decreasing during September, falling from 33% to 11% over the course of the month.
For reference, on July 28, the muggiest day of the year, there are muggy conditions 49% of the time, while on December 12, 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 Thomas is gradually increasing during September, increasing from 10.4 miles per hour to 11.1 miles per hour over the course of the month.
For reference, on April 4, the windiest day of the year, the daily average wind speed is 13.0 miles per hour, while on August 12, the calmest day of the year, the daily average wind speed is 10.0 miles per hour.
Average Wind Speed in September
Wind Direction in September
The growing season in Thomas typically lasts for 7.0 months (213 days), from around April 3 to around November 2, rarely starting before March 15 or after April 21, and rarely ending before October 15 or after November 22.
The month of September in Thomas 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 Thomas are rapidly increasing during September, increasing by 621°F, from 3,613°F to 4,234°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Thomas is gradually decreasing during September, falling by 1.0 kWh, from 6.1 kWh to 5.1 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 Thomas are 35.744 deg latitude, -98.748 deg longitude, and 1,722 ft elevation.
The topography within 2 miles of Thomas contains only modest variations in elevation, with a maximum elevation change of 203 feet and an average elevation above sea level of 1,730 feet. Within 10 miles contains only modest variations in elevation (492 feet). Within 50 miles contains significant variations in elevation (1,444 feet).
The area within 2 miles of Thomas is covered by cropland (93%), within 10 miles by cropland (62%) and grassland (34%), and within 50 miles by grassland (50%) and cropland (46%).
This report illustrates the typical weather in Thomas 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Thomas.
For each station, the records are corrected for the elevation difference between that station and Thomas 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 Thomas is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Thomas and a given station.
The stations contributing to this reconstruction are: Thomas P Stafford Airport (41%, 23 kilometers, south); Clinton Municipal Airport (30%, 28 kilometers, southwest); Watonga Regional Airport (24%, 32 kilometers, northeast); and West Woodward Airport (4.3%, 104 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .