Average Weather in September in Hartford Alabama, United States
In Hartford, the month of September is characterized by falling daily high temperatures, with daily highs decreasing by 6°F, from 89°F to 83°F over the course of the month, and rarely exceeding 94°F or dropping below 76°F.
Daily low temperatures decrease by 7°F, from 71°F to 64°F, rarely falling below 54°F or exceeding 75°F.
For reference, on July 22, the hottest day of the year, temperatures in Hartford typically range from 73°F to 90°F, while on January 17, the coldest day of the year, they range from 41°F to 60°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 Hartford experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 45% to 38%.
The clearest day of the month is September 30, with clear, mostly clear, or partly cloudy conditions 62% of the time.
For reference, on July 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 56%, while on October 27, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 66%.
Cloud Cover in September
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Hartford, the chance of a wet day over the course of September is very rapidly decreasing, starting the month at 39% and ending it at 25%.
For reference, the year's highest daily chance of a wet day is 57% on July 27, and its lowest chance is 19% on October 15.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Hartford is gradually decreasing, starting the month at 3.7 inches, when it rarely exceeds 6.8 inches or falls below 1.4 inches, and ending the month at 3.3 inches, when it rarely exceeds 6.3 inches or falls below 0.8 inches.
Average Monthly Rainfall in September
Over the course of September in Hartford, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 54 minutes, implying an average daily decrease of 1 minute, 52 seconds, and weekly decrease of 13 minutes, 2 seconds.
The shortest day of the month is September 30, with 11 hours, 53 minutes of daylight and the longest day is September 1, with 12 hours, 47 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Hartford is 6:19 AM on September 1 and the latest sunrise is 17 minutes later at 6:35 AM on September 30.
The latest sunset is 7:05 PM on September 1 and the earliest sunset is 37 minutes earlier at 6:28 PM on September 30.
Daylight saving time is observed in Hartford during 2017, 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 5:39 AM and sets 14 hours, 10 minutes later, at 7:49 PM, while on December 21, the shortest day of the year, it rises at 6:37 AM and sets 10 hours, 8 minutes later, at 4:44 PM.
Sunrise & Sunset with Twilight in September
The chance that a given day will be muggy in Hartford is very rapidly decreasing during September, falling from 88% to 49% over the course of the month.
For reference, on July 23, the muggiest day of the year, there are muggy conditions 98% of the time, while on January 24, the least muggy day of the year, there are muggy conditions 2% of the time.
Humidity Comfort Levels in September
The average hourly wind speed in Hartford is gradually increasing during September, increasing from 2.9 miles per hour to 3.4 miles per hour over the course of the month.
For reference, on March 7, the windiest day of the year, the daily average wind speed is 4.1 miles per hour, while on August 6, the calmest day of the year, the daily average wind speed is 2.6 miles per hour.
Average Wind Speed in September
Wind Direction in September
Hartford is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Hartford is gradually decreasing during September, falling by 3°F, from 84°F to 81°F, over the course of the month.
Average Water Temperature in September
The average daily incident shortwave solar energy in Hartford is essentially constant during September, remaining within 0.2 kWh of 5.3 kWh throughout.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Hartford are 31.102 deg latitude, -85.697 deg longitude, and 246 ft elevation.
The topography within 2 miles of Hartford contains only modest variations in elevation, with a maximum elevation change of 105 feet and an average elevation above sea level of 251 feet. Within 10 miles also contains only modest variations in elevation (305 feet). Within 50 miles contains only modest variations in elevation (587 feet).
The area within 2 miles of Hartford is covered by cropland (93%), within 10 miles by cropland (67%) and trees (30%), and within 50 miles by trees (57%) and cropland (36%).
This report illustrates the typical weather in Hartford 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 Hartford.
For each station, the records are corrected for the elevation difference between that station and Hartford 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 Hartford is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Hartford and a given station.
The stations contributing to this reconstruction are: Cairns Army Airfield (Fort Rucker) (68%, 18 kilometers, north); Marianna Municipal Airport (13%, 57 kilometers, southeast); Florala Municipal Airport (12%, 59 kilometers, west); and Northwest Florida Beaches International Airport (7%, 84 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .