Average Weather in July in Dayton Tennessee, United States
In Dayton, the month of July is characterized by essentially constant daily high temperatures, with daily highs around 88°F throughout the month, rarely exceeding 94°F or dropping below 81°F. The highest daily average high temperature is 88°F on July 22.
Daily low temperatures are around 69°F, rarely falling below 63°F or exceeding 75°F. The highest daily average low temperature is 70°F on July 24.
For reference, on July 21, the hottest day of the year, temperatures in Dayton typically range from 70°F to 88°F, while on January 25, the coldest day of the year, they range from 32°F to 49°F.
Average High and Low Temperature in July
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. 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 July
The month of July in Dayton 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 July 31, with clear, mostly clear, or partly cloudy conditions 62% of the time.
For reference, on January 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 56%, while on September 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 66%.
Cloud Cover in July
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Dayton, the chance of a wet day over the course of July is decreasing, starting the month at 42% and ending it at 38%.
For reference, the year's highest daily chance of a wet day is 43% on July 9, and its lowest chance is 21% on October 16.
Probability of Precipitation in July
The average sliding 31-day rainfall during July in Dayton is gradually decreasing, starting the month at 3.7 inches, when it rarely exceeds 6.9 inches or falls below 1.4 inches, and ending the month at 3.3 inches, when it rarely exceeds 5.3 inches or falls below 1.5 inches.
The highest average 31-day accumulation is 3.7 inches on July 3.
Average Monthly Rainfall in July
Over the course of July in Dayton, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 34 minutes, implying an average daily decrease of 1 minute, 8 seconds, and weekly decrease of 7 minutes, 58 seconds.
The shortest day of the month is July 31, with 13 hours, 57 minutes of daylight and the longest day is July 1, with 14 hours, 31 minutes of daylight.
Hours of Daylight and Twilight in July
The earliest sunrise of the month in Dayton is 6:28 AM on July 1 and the latest sunrise is 19 minutes later at 6:47 AM on July 31.
The latest sunset is 8:59 PM on July 1 and the earliest sunset is 15 minutes earlier at 8:44 PM on July 31.
Daylight saving time is observed in Dayton during 2017, but it neither starts nor ends during July, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 6:25 AM and sets 14 hours, 34 minutes later, at 8:58 PM, while on December 21, the shortest day of the year, it rises at 7:45 AM and sets 9 hours, 46 minutes later, at 5:31 PM.
Sunrise & Sunset with Twilight in July
The chance that a given day will be muggy in Dayton is increasing during July, rising from 71% to 81% over the course of the month.
The highest chance of a muggy day during July is 84% on July 25.
For reference, on July 24, the muggiest day of the year, there are muggy conditions 84% 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 July
The average hourly wind speed in Dayton is essentially constant during July, remaining within 0.1 miles per hour of 1.8 miles per hour throughout.
For reference, on February 26, the windiest day of the year, the daily average wind speed is 2.9 miles per hour, while on August 1, the calmest day of the year, the daily average wind speed is 1.7 miles per hour.
Average Wind Speed in July
Wind Direction in July
The average daily incident shortwave solar energy in Dayton is essentially constant during July, remaining within 0.1 kWh of 6.6 kWh throughout.
Average Daily Incident Shortwave Solar Energy in July
For the purposes of this report, the geographical coordinates of Dayton are 35.494 deg latitude, -85.012 deg longitude, and 833 ft elevation.
The topography within 2 miles of Dayton contains very significant variations in elevation, with a maximum elevation change of 853 feet and an average elevation above sea level of 815 feet. Within 10 miles also contains very significant variations in elevation (1,608 feet). Within 50 miles contains very significant variations in elevation (3,720 feet).
The area within 2 miles of Dayton is covered by cropland (38%), trees (32%), and artificial surfaces (30%), within 10 miles by trees (62%) and cropland (29%), and within 50 miles by trees (68%) and cropland (26%).
This report illustrates the typical weather in Dayton 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 Dayton.
For each station, the records are corrected for the elevation difference between that station and Dayton 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 Dayton is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Dayton and a given station.
The stations contributing to this reconstruction are: Crossville Memorial Airport (32%, 51 kilometers, north); Lovell Field (38%, 54 kilometers, south); Oak Ridge (17%, 92 kilometers, northeast); and Western Carolina Regional Airport (13%, 109 kilometers, east).
Time zones for aiports and weather stations are provided by AskGeo.com .