This report describes the typical weather at the Austin-Bergstrom International Airport (Austin, Texas, United States) weather station over the course of an average March. It is based on the historical records from 2000 to 2012. Earlier records are either unavailable or unreliable.
Austin, Texas has a warm humid temperate climate with hot summers and no dry season. The area within 25 mi of this station is covered by croplands (43%), grasslands (40%), forests (13%), and built-up areas (2%).
The month of March is characterized by rising daily high temperatures, with daily highs increasing from 70Â°F to 77Â°F over the course of the month, exceeding 84Â°F or dropping below 59Â°F only one day in ten.
Over the course of March, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 55 minutes, implying an average day-over-day increase of 1.8 minutes.
The shortest day of the month is March 1 with 11:34 hours of daylight; the longest day is March 31 with 12:29 hours of daylight.
The earliest sunrise is at 6:46am on March 10; the latest sunset is at 7:49pm on March 31; the latest sunrise is at 7:45am on March 11; the earliest sunset is at 6:30pm on March 1.
Daylight savings time (DST) starts at 3:00am on March 11, 2012, shifting sunrise and sunset to an hour later.
The median cloud cover is 79% (partly cloudy) and does not vary substantially over the course of the month.
On March 16, a representative day, the sky is clear or mostly clear 30% of the time, partly cloudy 12% of the time, and mostly cloudy or overcast 58% of the time.
The average probability that some form of precipitation will be observed in a given day is 40%, with little variation over the course of the month.
Throughout March, the most common forms of precipitation are light rain, thunderstorms, moderate rain, and drizzle.
Light rain is the most severe precipitation observed during 31% of those days with precipitation. It is most likely around March 1, when it is observed during 14% of all days.
Thunderstorms are the most severe precipitation observed during 23% of those days with precipitation. They are most likely around March 31, when it is observed during 12% of all days.
Moderate rain is the most severe precipitation observed during 22% of those days with precipitation. It is most likely around March 6, when it is observed during 10% of all days.
Drizzle is the most severe precipitation observed during 18% of those days with precipitation. It is most likely around March 10, when it is observed during 8% of all days.
Either snow is exceptionally unlikely to fall at this location in March or this station does not reliably report precipitation types.
The relative humidity typically ranges from 46% (comfortable) to 93% (very humid) over the course of a typical March, rarely dropping below 21% (dry) and reaching as high as 100% (very humid).
The air is driest around March 2, at which time the relative humidity drops below 62% (mildly humid) three days out of four; it is most humid around March 23, 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 March, the dew point typically varies from 38Â°F (dry) to 60Â°F (comfortable) and is rarely below 24Â°F (dry) or above 68Â°F (muggy).
The time of the month between March 1 and March 31 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of March typical wind speeds vary from 0 mph to 18 mph (calm to moderate breeze), rarely exceeding 24 mph (fresh breeze).
The highest average wind speed of 10 mph (gentle breeze) occurs around March 29, at which time the average daily maximum wind speed is 18 mph (moderate breeze).
The lowest average wind speed of 9 mph (gentle breeze) occurs around March 8, at which time the average daily maximum wind speed is 17 mph (moderate breeze).