Weather Almanac: San Marcos, TX 78666

🌱 Growing Season

USDA Zone

9a

Annual extreme lows 20°F to 25°F

Last Spring Frost (36°F)

🌷 Mar 23

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First Fall Frost (36°F)

🍂 Nov 10

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📚 Book Recommendations (ads!)

📚 Texas Month-by-Month Gardening: What to Do Each Month to Have A Beautiful Garden All Year

📚 Grow Great Vegetables in Texas

📚 Southwest Gardener's Handbook: Your Complete Guide: Select, Plan, Plant, Maintain, Problem-Solve - Texas, Arizona, New Mexico, Oklahoma, Southern Nevada, Utah

📍 Zip Codes

78666 (San Marcos, TX)

Temperature climatic data from weather station: SAN MARCOS (USC00417983)

Precipitation climatic data from weather station: SAN MARCOS (USC00417983)

Agricultural climatic data from weather station: AUSTIN SAN ANTONIO (USW00012971)