McKinney, TX 75070 Frost Dates
McKinney, TX: when does the frost end?
Around 03/17 is the usual last spring frost, about 201 days away. Fall's first freeze usually shows up around 11/15, roughly 241 days after the last spring frost.
Zone 8b (15 to 20°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 McKinney, not a forecast for this year.
Stretching the season past the first frost
With roughly 11 weeks until McKinney's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around McKinney's last frost
03/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/05 and only about 1 year in 10 sees frost after that.
McKinney against the rest of the dataset
About 241 days separate McKinney's last and first frost, putting it 8,470 of 40,283 ZIP codes nationally. Within TX, it ranks 1,889 of 2,558.
Learn more
Before leaning on 75070's figures: local microclimates explains what one yard in McKinney can differ from the 75070 normal, while zone vs. frost date explains why Zone 8b and McKinney's frost date answer different questions.