Average Weather in August in Hagerstown Indiana, United States
In Hagerstown, the month of August is characterized by gradually falling daily high temperatures, with daily highs decreasing by 2°F, from 82°F to 80°F over the course of the month, and rarely exceeding 90°F or dropping below 72°F.
Daily low temperatures decrease by 4°F, from 64°F to 60°F, rarely falling below 51°F or exceeding 72°F.
For reference, on July 19, the hottest day of the year, temperatures in Hagerstown typically range from 65°F to 83°F, while on January 29, the coldest day of the year, they range from 21°F to 35°F.
Average High and Low Temperature in August
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. 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 August
The month of August in Hagerstown experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 33% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 31% on August 23.
The clearest day of the month is August 23, with clear, mostly clear, or partly cloudy conditions 69% of the time.
For reference, on January 2, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 61%, while on August 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 69%.
Cloud Cover Categories in August
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Hagerstown, the chance of a wet day over the course of August is very rapidly decreasing, starting the month at 36% and ending it at 27%.
For reference, the year's highest daily chance of a wet day is 41% on June 26, and its lowest chance is 20% on January 29.
Probability of Precipitation in August
The average sliding 31-day rainfall during August in Hagerstown is essentially constant, remaining about 2.9 inches throughout, and rarely exceeding 5.1 inches or falling below 0.9 inches.
Average Monthly Rainfall in August
Over the course of August in Hagerstown, 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, 9 minutes, implying an average daily decrease of 2 minutes, 18 seconds, and weekly decrease of 16 minutes, 6 seconds.
The shortest day of the month is August 31, with 13 hours, 5 minutes of daylight and the longest day is August 1, with 14 hours, 14 minutes of daylight.
Hours of Daylight and Twilight in August
The earliest sunrise of the month in Hagerstown is 6:39 AM on August 1 and the latest sunrise is 28 minutes later at 7:07 AM on August 31.
The latest sunset is 8:53 PM on August 1 and the earliest sunset is 41 minutes earlier at 8:13 PM on August 31.
Daylight saving time is observed in Hagerstown during 2017, but it neither starts nor ends during August, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 6:12 AM and sets 15 hours, 0 minutes later, at 9:12 PM, while on December 21, the shortest day of the year, it rises at 7:58 AM and sets 9 hours, 20 minutes later, at 5:19 PM.
Sunrise & Sunset with Twilight in August
The chance that a given day will be muggy in Hagerstown is rapidly decreasing during August, falling from 53% to 34% over the course of the month.
For reference, on July 23, the muggiest day of the year, there are muggy conditions 54% of the time, while on November 16, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in August
The average hourly wind speed in Hagerstown is gradually increasing during August, increasing from 6.9 miles per hour to 7.5 miles per hour over the course of the month.
For reference, on January 15, the windiest day of the year, the daily average wind speed is 12.4 miles per hour, while on August 4, the calmest day of the year, the daily average wind speed is 6.9 miles per hour.
The lowest daily average wind speed during August is 6.9 miles per hour on August 4.
Average Wind Speed in August
Wind Direction in August
The average daily incident shortwave solar energy in Hagerstown is gradually decreasing during August, falling by 0.8 kWh, from 6.6 kWh to 5.8 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in August
For the purposes of this report, the geographical coordinates of Hagerstown are 39.911 deg latitude, -85.162 deg longitude, and 1,056 ft elevation.
The topography within 2 miles of Hagerstown contains only modest variations in elevation, with a maximum elevation change of 157 feet and an average elevation above sea level of 1,041 feet. Within 10 miles also contains only modest variations in elevation (344 feet). Within 50 miles contains only modest variations in elevation (764 feet).
The area within 2 miles of Hagerstown is covered by cropland (86%), within 10 miles by cropland (94%), and within 50 miles by cropland (86%).
This report illustrates the typical weather in Hagerstown 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 Hagerstown.
For each station, the records are corrected for the elevation difference between that station and Hagerstown 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 Hagerstown is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Hagerstown and a given station.
The stations contributing to this reconstruction are: Delaware County Regional Airport (42%, 41 kilometers, northwest); Darke County Airport (22%, 63 kilometers, northeast); Shelbyville Municipal Airport (20%, 66 kilometers, southwest); and Middletown Regional Airport/Hook Field (16%, 78 kilometers, southeast).
Time zones for aiports and weather stations are provided by AskGeo.com .