Edinburg, TX 78573 Frost Dates
Frost dates for Edinburg, TX, ZIP 78573
Around 01/08 is the usual last spring frost, about 133 days away. The first fall frost typically arrives around 01/02, about 365 frost-free days later.
Zone 10a (30 to 35°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Edinburg, not a forecast for this year.
What to do before the first frost
Zone 10a around Edinburg has about 18 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
01/08 is the middle of 30 years of NOAA records, not a promise. Plant by 02/21 and you're betting against frost in roughly 9 years out of 10. 12/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Edinburg compares
At roughly 365 frost-free days, Edinburg places 479 of 40,283 ZIP codes in this dataset. Within TX, it ranks 15 of 2,558.
Learn more
local microclimates explains what one yard in Edinburg can differ from the 78573 normal, and zone vs. frost date explains why Zone 10a and Edinburg's frost date answer different questions.