Spring Branch, TX 78070 Frost Dates
When can you plant in Spring Branch, TX?
The last spring frost here typically falls around 03/01, about 185 days from today. The first fall frost typically arrives around 12/01, about 276 frost-free days later.
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 Spring Branch, not a forecast for this year.
What to do before the first frost
About 14 weeks of growing season left in Spring Branch before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
03/01 is the middle of 30 years of NOAA records, not a promise. Plant by 01/31 and you're betting against frost in roughly 9 years out of 10. 03/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Spring Branch compares
At roughly 276 frost-free days, Spring Branch places 5,118 of 40,283 ZIP codes in this dataset. Within TX, it ranks 844 of 2,558.
Learn more
local microclimates covers what one yard in Spring Branch can differ from the 78070 normal. zone vs. frost date covers why Zone 8b and Spring Branch's frost date answer different questions.