Mertzon, TX 76902 Frost Dates
76902, near Mertzon, TX: the frost window
The last spring frost here typically falls around 04/01, about 216 days from today. Fall's first freeze usually shows up around 11/04, roughly 215 days after the last spring frost.
Mertzon sits in USDA Zone 8a (10 to 15°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
Mertzon's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/19 and only about 1 year in 10 sees frost after that.
Mertzon against the rest of the dataset
Mertzon's growing season runs about 215 days, ranking 14,155 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 2,346 of 2,558.
Learn more
Two guides worth reading on 76902: the frost range, on how to read the range around Mertzon's dates instead of trusting one, and local microclimates, on what one yard in Mertzon can differ from the 76902 normal.