Rule, TX 79548 Frost Dates
Rule, TX: when does the frost end?
Around 03/23 is the usual last spring frost, about 207 days away. Fall's first freeze usually shows up around 11/11, roughly 234 days after the last spring frost.
Zone 8a (10 to 15°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 Rule, not a forecast for this year.
Stretching the season past the first frost
With roughly 11 weeks until Rule's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
03/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/12 and only about 1 year in 10 sees frost after that.
Rule against the rest of the dataset
Rule's growing season runs about 234 days, ranking 9,797 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 2,073 of 2,558.
Learn more
Before leaning on 79548's figures: zone vs. frost date explains why Zone 8a and Rule's frost date answer different questions, while the frost range explains how to read the range around Rule's dates instead of trusting one.