Frost Dates for 35749 — Harvest, Alabama

Half of springs at Belle Mina 2 N, AL see their last 32°F night by March 31; only one in ten is past it by March 14, and one in ten still has one after April 16. Planting tender crops after April 6 leaves a 30% risk of a frost on them, after April 10 20%, and after April 16 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 80% of the 115 Alabama stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 1 in half of years, as early as October 19 one year in ten, and holds off past November 15 one year in ten. A hard freeze of 28°F follows 9 days later, around November 10; in spring the one-in-ten date for 28°F is April 4, 12 days before the 32°F one. The freeze-free season lasts 214 days in a typical year, shorter than at 80% of the 115 Alabama stations; it reaches 239 days one year in ten and falls short of 194 one year in ten. On average 76 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 11 days longer, to about April 11, and return around October 23. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 90%.

July is the warmest month at Belle Mina 2 N, AL, averaging 89°F by day and 68°F at night; January is the coldest at 49°F and 30°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 48% of years.

Warmth for growing adds up to 4,709 growing degree days a year (base 50°F), fewer than at 88% of the 115 Alabama stations. 39% of them (1,824) have built up by the end of June, and July adds the most, 885. Precipitation totals 54.6 inches a year, most in December (5.9") and least in August (3.4"); May to September bring 37% of it.

The nearest other station, Athens, AL, 11 miles west of Harvest, has a last frost 11 days earlier (March 20), a first frost 11 days later (November 12), a season 24 days longer.

Measurable snow is rare here: only 10 of 23 winters from 1991 to 2020 recorded 0.1 inch or more at Athens, AL, 11.2 miles away, so there is no typical first-snow date to plan around.

ZIP 35749 is 11 miles from Belle Mina 2 N, AL, which stands at 603 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 35749 in zone 8a, the band where the coldest night of the year averaged 10 to 15°F (-12.2 to -9.4°C) over 1991–2020; a zone describes winter lows, not frost dates.