Average Weather in September in Liberty City Texas, United States
Daily high temperatures decrease by 8°F, from 91°F to 83°F, rarely falling below 74°F or exceeding 98°F.
Daily low temperatures decrease by 10°F, from 71°F to 62°F, rarely falling below 51°F or exceeding 76°F.
For reference, on August 12, the hottest day of the year, temperatures in Liberty City typically range from 74°F to 94°F, while on January 6, the coldest day of the year, they range from 38°F to 57°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 Liberty City experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 36% to 29%. The highest chance of overcast or mostly cloudy conditions is 36% on September 3.
The clearest day of the month is September 30, with clear, mostly clear, or partly cloudy conditions 71% of the time.
For reference, on February 24, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 49%, while on October 5, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.
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 Liberty City, 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 36% on June 10, and its lowest chance is 22% on September 20.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Liberty City is rapidly increasing, starting the month at 2.3 inches, when it rarely exceeds 5.3 inches or falls below 0.6 inches, and ending the month at 3.3 inches, when it rarely exceeds 6.6 inches or falls below 0.9 inches.
Average Monthly Rainfall in September
Over the course of September in Liberty City, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 57 minutes, implying an average daily decrease of 1 minute, 58 seconds, and weekly decrease of 13 minutes, 44 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, 49 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Liberty City is 6:54 AM on September 1 and the latest sunrise is 18 minutes later at 7:13 AM on September 30.
The latest sunset is 7:44 PM on September 1 and the earliest sunset is 38 minutes earlier at 7:05 PM on September 30.
Daylight saving time is observed in Liberty 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 6:13 AM and sets 14 hours, 17 minutes later, at 8:30 PM, while on December 21, the shortest day of the year, it rises at 7:17 AM and sets 10 hours, 1 minute later, at 5:18 PM.
Sunrise & Sunset with Twilight in September
The chance that a given day will be muggy in Liberty City is very rapidly decreasing during September, falling from 76% to 37% over the course of the month.
For reference, on July 14, the muggiest day of the year, there are muggy conditions 92% of the time, while on January 23, 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 Liberty City is gradually increasing during September, increasing from 5.8 miles per hour to 6.5 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 8.5 miles per hour, while on August 15, the calmest day of the year, the daily average wind speed is 5.6 miles per hour.
Average Wind Speed in September
Wind Direction in September
The growing season in Liberty City typically lasts for 8.4 months (258 days), from around March 8 to around November 21, rarely starting before February 15 or after March 29, and rarely ending before October 31 or after December 10.
The month of September in Liberty 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 Liberty City are rapidly increasing during September, increasing by 742°F, from 4,496°F to 5,238°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Liberty City is gradually decreasing during September, falling by 0.6 kWh, from 5.8 kWh to 5.2 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 Liberty City are 32.445 deg latitude, -94.949 deg longitude, and 377 ft elevation.
The topography within 2 miles of Liberty City contains only modest variations in elevation, with a maximum elevation change of 203 feet and an average elevation above sea level of 375 feet. Within 10 miles also contains only modest variations in elevation (381 feet). Within 50 miles contains only modest variations in elevation (600 feet).
The area within 2 miles of Liberty City is covered by cropland (56%) and trees (28%), within 10 miles by cropland (46%) and trees (37%), and within 50 miles by cropland (46%) and trees (40%).
This report illustrates the typical weather in Liberty 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Liberty City.
For each station, the records are corrected for the elevation difference between that station and Liberty 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 Liberty City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Liberty City and a given station.
The stations contributing to this reconstruction are: Gregg County Airport (37%, 23 kilometers, east); Gilmer, Fox Stephens Field - Gilmer Municipal Airport (28%, 28 kilometers, north); Rusk County Airport (21%, 34 kilometers, south); and Tyler Pounds Field (14%, 44 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .