Crystal City, TX 78872 Frost Dates
When can you plant in Crystal City, TX?
Around 03/06 is the usual last spring frost, about 190 days away. The first fall frost typically arrives around 11/20, about 263 frost-free days later.
Crystal City sits in USDA Zone 9a (20 to 25°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 12 weeks of growing season left in Crystal City before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
03/06 is the middle of 30 years of NOAA records, not a promise. Plant by 02/09 and you're betting against frost in roughly 9 years out of 10. 03/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Crystal City compares
At roughly 263 frost-free days, Crystal City places 6,103 of 40,283 ZIP codes in this dataset. Within TX, it ranks 1,115 of 2,558.
Learn more
the frost range covers how to read the range around Crystal City's dates instead of trusting one. local microclimates covers what one yard in Crystal City can differ from the 78872 normal.