This report describes the typical weather at the Camp Mabry (Austin, Texas, United States) weather station over the course of an average year. 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 grasslands (49%), croplands (29%), and forests (17%).
Over the course of a year, the temperature typically varies from 42°F to 98°F and is rarely below 32°F or above 102°F.
The warm season lasts from May 28 to September 15 with an average daily high temperature above 90°F. The hottest day of the year is August 11, with an average high of 98°F and low of 76°F.
The cold season lasts from November 23 to February 25 with an average daily high temperature below 68°F. The coldest day of the year is January 1, with an average low of 42°F and high of 62°F.
The length of the day varies significantly over the course of the year. The shortest day is December 21 with 10:11 hours of daylight; the longest day is June 20 with 14:07 hours of daylight.
The earliest sunrise is at 6:28am on June 8 and the latest sunset is at 8:37pm on July 3. The latest sunrise is at 7:47am on November 2 and the earliest sunset is at 5:30pm on December 1.
Daylight savings time (DST) is observed in this location during 2012, starting in the spring on March 11 and ending in the fall on November 4.
The median cloud cover ranges from 12% (mostly clear) to 51% (partly cloudy). The sky is cloudiest on April 12 and clearest on August 31. The clearer part of the year begins around June 12. The cloudier part of the year begins around December 31.
On August 31, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 71% of the time, and overcast or mostly cloudy 20% of the time.
On April 12, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 44% of the time, and clear or mostly clear 40% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around March 9, occurring in 37% of days. Precipitation is least likely around November 13, occurring in 28% of days.
Over the entire year, the most common forms of precipitation are thunderstorms, light rain, and moderate rain.
Thunderstorms are the most severe precipitation observed during 42% of those days with precipitation. They are most likely around July 13, when it is observed during 24% of all days.
Light rain is the most severe precipitation observed during 35% of those days with precipitation. It is most likely around February 20, when it is observed during 20% of all days.
Moderate rain is the most severe precipitation observed during 13% of those days with precipitation. It is most likely around January 10, when it is observed during 7% of all days.
During the warm season, which lasts from May 28 to September 15, there is a 32% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of thunderstorms (69% of days with precipitation have at worst thunderstorms), light rain (17%), moderate rain (8%), and heavy rain (6%).
During the cold season, which lasts from November 23 to February 25, there is a 30% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of light rain (53% of days with precipitation have at worst light rain), moderate rain (21%), thunderstorms (14%), and heavy rain (8%).
Either snow is exceptionally unlikely to fall at any time during the year at this location or this station does not reliably report precipitation types.
The relative humidity typically ranges from 35% (comfortable) to 89% (very humid) over the course of the year, rarely dropping below 18% (dry) and reaching as high as 99% (very humid).
The air is driest around August 10, at which time the relative humidity drops below 40% (comfortable) three days out of four; it is most humid around July 2, exceeding 87% (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 year, the dew point typically varies from 30°F (dry) to 73°F (very muggy) and is rarely below 16°F (dry) or above 75°F (very muggy).
There are two periods in the year that are most comfortable: The first is between February 21 and May 2 and the second is between September 28 and November 25. The air feels neither too dry nor too muggy during these periods.
Over the course of the year typical wind speeds vary from 0 mph to 12 mph (calm to moderate breeze), rarely exceeding 16 mph (moderate breeze).
The highest average wind speed of 7 mph (light breeze) occurs around March 29, at which time the average daily maximum wind speed is 12 mph (moderate breeze).
The lowest average wind speed of 4 mph (light breeze) occurs around September 11, at which time the average daily maximum wind speed is 9 mph (gentle breeze).