Dalhart, TX 79022 Frost Dates
Frost dates for Dalhart, TX, ZIP 79022
Around 04/28 is the usual last spring frost, about 243 days away. The first fall frost typically arrives around 10/20, about 173 frost-free days later.
The USDA Plant Hardiness Zone Map puts Dalhart in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 6b around Dalhart 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.
The actual range around Dalhart's last frost
04/28 is the middle of 30 years of NOAA records, not a promise. Plant by 04/14 and you're betting against frost in roughly 9 years out of 10. 05/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dalhart compares
Dalhart's growing season runs about 173 days, ranking 27,819 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 2,546 of 2,558.
Learn more
local microclimates explains what one yard in Dalhart can differ from the 79022 normal, and zone vs. frost date explains why Zone 6b and Dalhart's frost date answer different questions.