Happy, TX 79042 Frost Dates
Frost dates for Happy, TX, ZIP 79042
The last spring frost here typically falls around 04/18, about 233 days from today. The first fall frost typically arrives around 10/26, about 189 frost-free days later.
Zone 7a (0 to 5°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 Happy, not a forecast for this year.
What to do before the first frost
Zone 7a around Happy has about 8 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.
Why 04/18 isn't a guarantee
04/18 is the middle of 30 years of NOAA records, not a promise. Plant by 04/04 and you're betting against frost in roughly 9 years out of 10. 05/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Happy compares
About 189 days separate Happy's last and first frost, putting it 21,698 of 40,283 ZIP codes nationally. Within TX, it ranks 2,504 of 2,558.
Learn more
local microclimates explains what one yard in Happy can differ from the 79042 normal, and zone vs. frost date explains why Zone 7a and Happy's frost date answer different questions.