This report describes the typical weather at the Elkhart Municipal Airport (Elkhart, Indiana, United States) weather station over the course of an average August. It is based on the historical records from 1981 to 2011. Earlier records are either unavailable or unreliable.
Elkhart, Indiana has a humid continental climate with hot summers and no dry season. The area within 25 mi of this station is covered by croplands (80%), forests (12%), and built-up areas (4%).
The month of August is characterized by gradually falling daily high temperatures, with daily highs around 82°F throughout the month, exceeding 91°F or dropping below 71°F only one day in ten. Daily low temperatures range from 61°F to 65°F, falling below 53°F or exceeding 73°F only one day in ten.
Over the course of August, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 1:14 hours, implying an average day-over-day decrease of 2.4 minutes.
The shortest day of the month is August 31 with 12:59 hours of sunlight; the longest day is August 1 with 14:13 hours of sunlight.
The earliest sunrise is at 6:43am on August 1 and the latest sunrise is at 7:14am on August 31. The earliest sunset is at 8:13pm on August 31 and the latest sunset is at 8:56pm on August 1.
Daylight savings time is observed in 2012 but it neither starts nor ends in August, so the entire month is in daylight time.
The median cloud cover is 38% (mostly clear) and does not vary substantially over the course of the month.
On August 16, a representative day, the sky is clear or mostly clear 32% of the time, partly cloudy 7% of the time, and mostly cloudy or overcast 29% of the time.
The average probability that some form of precipitation will be observed in a given day is 38%, with little variation over the course of the month.
Throughout August, the most common forms of precipitation are light rain, thunderstorms, and moderate rain.
Light rain is the most severe precipitation observed during 42% of those days with precipitation. It is most likely around August 30, when it is observed during 18% of all days.
Thunderstorms are the most severe precipitation observed during 39% of those days with precipitation. They are most likely around August 1, when it is observed during 16% of all days.
Moderate rain is the most severe precipitation observed during 14% of those days with precipitation. It is most likely around August 29, when it is observed during 5% of all days.
Either snow is exceptionally unlikely to fall at this location in August or this station does not reliably report precipitation types.
The relative humidity typically ranges from 50% (comfortable) to 94% (very humid) over the course of a typical August, rarely dropping below 35% (comfortable) and reaching as high as 100% (very humid).
The air is driest around August 31, at which time the relative humidity drops below 58% (mildly humid) three days out of four; it is most humid around August 7, rising above 91% (very humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical August, the dew point typically varies from 55°F (very comfortable) to 68°F (muggy) and is rarely below 47°F (dry) or above 74°F (very muggy).
Over the course of August typical wind speeds vary from 0 mph to 12 mph (calm to moderate breeze), rarely exceeding 18 mph (moderate breeze).
The highest average wind speed of 6 mph (light breeze) occurs around August 31, at which time the average daily maximum wind speed is 12 mph (moderate breeze).
The lowest average wind speed of 6 mph (light breeze) occurs around August 8, at which time the average daily maximum wind speed is 12 mph (gentle breeze).