Hearne, TX 77859 Frost Dates
77859, near Hearne, TX: the frost window
Around 02/27 is the usual last spring frost, about 183 days away. Fall's first freeze usually shows up around 11/30, roughly 278 days after the last spring frost.
Hearne sits in USDA Zone 9a (20 to 25°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Hearne's growing season runs out in roughly 13 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Hearne's last frost
02/27 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/18 and only about 1 year in 10 sees frost after that.
Hearne against the rest of the dataset
At roughly 278 frost-free days, Hearne places 4,923 of 40,283 ZIP codes in this dataset. Within TX, it ranks 756 of 2,558.
Learn more
Two guides worth reading on 77859: local microclimates, on what one yard in Hearne can differ from the 77859 normal, and zone vs. frost date, on why Zone 9a and Hearne's frost date answer different questions.