Rule, TX 79547 Frost Dates
Frost dates for Rule, TX, ZIP 79547
Around 03/23 is the usual last spring frost, about 207 days away. The first fall frost typically arrives around 11/11, about 234 frost-free days later.
Zone 8a (10 to 15°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 Rule, not a forecast for this year.
What to do before the first frost
Zone 8a around Rule has about 11 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
03/23 is the middle of 30 years of NOAA records, not a promise. Plant by 03/02 and you're betting against frost in roughly 9 years out of 10. 04/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Rule compares
Rule's growing season runs about 234 days, ranking 9,796 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 2,072 of 2,558.
Learn more
the frost range explains how to read the range around Rule's dates instead of trusting one, and local microclimates explains what one yard in Rule can differ from the 79547 normal.