Frost Dates for 35976 — Guntersville, Alabama

Half of springs at Guntersville No.2, AL see their last 32°F night by March 17; only one in ten is past it by February 26, and one in ten still has one after April 5. Planting tender crops after March 25 leaves a 30% risk of a frost on them, after March 31 20%, and after April 5 10%. The 19 days between the even-odds date and the one-in-ten date is wider than at 55% of the 115 Alabama stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 19 in half of years, as early as November 4 one year in ten, and holds off past December 6 one year in ten. A hard freeze of 28°F follows 12 days later, around December 1; in spring the one-in-ten date for 28°F is March 23, 13 days before the 32°F one. The freeze-free season lasts 247 days in a typical year, longer than at 73% of the 115 Alabama stations; it reaches 273 days one year in ten and falls short of 220 one year in ten. On average 44 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 15 days longer, to about April 1, and return around November 7. Nights of 24°F, cold enough to damage hardier plants, come in 99% of winters and 16°F in 65%.

July is the warmest month at Guntersville No.2, AL, averaging 89°F by day and 71°F at night; January is the coldest at 50°F and 33°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From May to October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 81% of years and April still brings one in 19% of years.

Warmth for growing adds up to 5,138 growing degree days a year (base 50°F), fewer than at 70% of the 115 Alabama stations. 39% of them (1,989) have built up by the end of June, and July adds the most, 925. Precipitation totals 56.8 inches a year, most in December (5.9") and least in October (3.3"); May to September bring 39% of it.

The nearest other station, Guntersville, AL, 2 miles southwest of Guntersville, has a last frost 2 days later (March 19), a first frost 1 day earlier (November 18), a season 3 days shorter.

Measurable snow is rare here: only 3 of 16 winters from 1991 to 2020 recorded 0.1 inch or more at Guntersville No.2, AL, 1.8 miles away, so there is no typical first-snow date to plan around.

ZIP 35976 is 2 miles from Guntersville No.2, AL, which stands at 595 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 35976 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.