Grove Hill, AL 36451 Frost Dates
36451, near Grove Hill, AL: the frost window
Typically, the last spring freeze lands around 03/22, roughly 206 days out. Fall's first freeze usually shows up around 11/08, roughly 231 days after the last spring frost.
Grove Hill 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
Grove Hill'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.
Why 03/22 isn't a guarantee
03/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/09 and only about 1 year in 10 sees frost after that.
Grove Hill against the rest of the dataset
Grove Hill's growing season runs about 231 days, ranking 10,214 of 40,283 US ZIP codes measured here, longest to shortest. Within AL, it ranks 485 of 809.
Learn more
Two guides worth reading on 36451: the frost range, on how to read the range around Grove Hill's dates instead of trusting one, and local microclimates, on what one yard in Grove Hill can differ from the 36451 normal.