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intersects with Highway 80 several miles west of Martindale, Texas. The unincorporated small residential community of Reedville is located off FM1984. AIRPORT HISTORY The San Marcos Municipal Airport has an origin shared with many county and municipal air facilities in Texas and throughout the United States. The San Marcos Airport began as Gary Army Airfield for World War II training needs. After the war, the Army Airfielq gave the property to the Army and became Gary Army Air Field, or Camp Gary. Camp Gary provided army aviation training until the 1960's. In 1966 the military training site was split. The Army Defense Department deeded the airfield to the city of San Marcos. The southern half of the airport property, which contained the training and housing facilities, was transferred to the United States Department of Labor. As part of the Johnson administration "Great Society" initiatives a jobs corps center was established and has remained as the Gary Jobs Corp Center. CLIMATE Weather conditions play an important role in the planning and development of an airport, as well as its daily operations. Temperature determines air density and, hence, influences landing distances and runway length requirements. Knowledge of wind patterns allows best runway alignment. Cloud cover percentages and frequency of other climatic conditions, likewise, determine the need for navigational aids and lighting. San Marcos is located in south central Texas, influenced by both the warm, moist air coming northward from the Gulf of Mexico and the subtropical latitude. In this part of Texas heat and humidity go hand-in-hand. With summer daytime temperatures well into the nineties and often surpassing 100 degrees, the average daily temperature and humidity (over 24 hours) for July and August is 85 degrees F and 70 percent (as interpolated from reporting data for Austin and San Antonio). High surface temperatures create areas of convection activity, generating the sporadic summer afternoon thunder- showers. Summer evenings are often punctuated by the thunder and high energy winds of thunderstorms driven eastward by westerly winds aloft and fueled by the moist Gulf air. Annual precipitation for the area averages 31.43 inches of precipitation per year. Less than one inch falls in the form of snow, with the highest monthly snowfall typically occurring during January. May is the wettest month of the year with an average of 4.5 inches of rain. Wind patterns for the central Texas area are typically from the south/southeast during the spring, summer, and fall months and from the north/northwest in the winter months. For this reason Runway 17 is the most favorable runway orientation. Average wind speeds for this area are 9.1 miles per hour (mph). Recorded periods of high winds are usually 1-3