Average Weather in September in Cedarville Arkansas, United States
Daily high temperatures decrease by 10°F, from 88°F to 78°F, rarely falling below 68°F or exceeding 97°F.
Daily low temperatures decrease by 11°F, from 67°F to 56°F, rarely falling below 44°F or exceeding 73°F.
For reference, on July 26, the hottest day of the year, temperatures in Cedarville typically range from 71°F to 92°F, while on January 7, the coldest day of the year, they range from 29°F to 48°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
Saloğlu, Azerbaijan (6,553 miles away); Mashhad, Iran (7,203 miles); and Dushanbe, Tajikistan (7,212 miles) are the far-away foreign places with temperatures most similar to Cedarville (view comparison).
The month of September in Cedarville experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 31% throughout the month.
The clearest day of the month is September 30, with clear, mostly clear, or partly cloudy conditions 70% of the time.
For reference, on March 1, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 48%, while on October 5, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 71%.
Cloud Cover Categories in September
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Cedarville, the chance of a wet day over the course of September is essentially constant, remaining around 28% throughout.
For reference, the year's highest daily chance of a wet day is 44% on May 21, and its lowest chance is 16% on January 12.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Cedarville is increasing, starting the month at 3.2 inches, when it rarely exceeds 5.9 inches or falls below 1.0 inches, and ending the month at 3.8 inches, when it rarely exceeds 7.2 inches or falls below 1.1 inches.
The highest average 31-day accumulation is 3.9 inches on September 24.
Average Monthly Rainfall in September
Over the course of September in Cedarville, 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, 12 seconds, and weekly decrease of 15 minutes, 26 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 Cedarville is 6:49 AM on September 1 and the latest sunrise is 22 minutes later at 7:11 AM on September 30.
The latest sunset is 7:44 PM on September 1 and the earliest sunset is 42 minutes earlier at 7:02 PM on September 30.
Daylight saving time is observed in Cedarville 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 6:02 AM and sets 14 hours, 34 minutes later, at 8:36 PM, while on December 21, the shortest day of the year, it rises at 7:23 AM and sets 9 hours, 45 minutes later, at 5:08 PM.
Sunrise & Sunset with Twilight in September
The chance that a given day will be muggy in Cedarville is very rapidly decreasing during September, falling from 59% to 18% over the course of the month.
For reference, on July 22, the muggiest day of the year, there are muggy conditions 82% of the time, while on December 13, 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 Cedarville is gradually increasing during September, increasing from 5.4 miles per hour to 6.2 miles per hour over the course of the month.
For reference, on March 19, the windiest day of the year, the daily average wind speed is 8.2 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 4.9 miles per hour.
Average Wind Speed in September
Wind Direction in September
The growing season in Cedarville typically lasts for 7.1 months (216 days), from around March 31 to around November 1, rarely starting before March 9 or after April 19, and rarely ending before October 14 or after November 22.
The month of September in Cedarville 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 Cedarville are rapidly increasing during September, increasing by 614°F, from 3,641°F to 4,255°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Cedarville is gradually decreasing during September, falling by 0.9 kWh, from 5.9 kWh to 4.9 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 Cedarville are 35.570 deg latitude, -94.367 deg longitude, and 896 ft elevation.
The topography within 2 miles of Cedarville contains significant variations in elevation, with a maximum elevation change of 525 feet and an average elevation above sea level of 868 feet. Within 10 miles contains significant variations in elevation (1,437 feet). Within 50 miles contains very significant variations in elevation (2,418 feet).
The area within 2 miles of Cedarville is covered by trees (64%) and cropland (36%), within 10 miles by trees (72%) and cropland (21%), and within 50 miles by trees (53%) and cropland (41%).
This report illustrates the typical weather in Cedarville 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 Cedarville.
For each station, the records are corrected for the elevation difference between that station and Cedarville 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 Cedarville is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Cedarville and a given station.
The stations contributing to this reconstruction are: Fort Smith Municipal Airport (44%, 26 kilometers, south); Sallisaw Municipal Airport (25%, 42 kilometers, west); Drake Field (18%, 52 kilometers, north); and Tahlequah Municipal Airport (12%, 70 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .