Jefferson, TX 75694 Frost Dates
75694, near Jefferson, TX: the frost window
The last spring frost here typically falls around 03/06, about 190 days from today. Fall's first freeze usually shows up around 11/19, roughly 257 days after the last spring frost.
Jefferson sits in USDA Zone 8b (15 to 20°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
Jefferson's growing season runs out in roughly 12 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/06 isn't a guarantee
03/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/27 and only about 1 year in 10 sees frost after that.
Jefferson against the rest of the dataset
At roughly 257 frost-free days, Jefferson places 6,707 of 40,283 ZIP codes in this dataset. Within TX, it ranks 1,437 of 2,558.
Learn more
Two guides worth reading on 75694: the frost range, on how to read the range around Jefferson's dates instead of trusting one, and local microclimates, on what one yard in Jefferson can differ from the 75694 normal.