Frost Dates for 36460 — Monroeville, Alabama

Half of springs at Evergreen Middleton Field, AL see their last 32°F night by March 10; only one in ten is past it by February 16, and one in ten still has one after March 31. Planting tender crops after March 19 leaves a 30% risk of a frost on them, after March 24 20%, and after March 31 10%. The 21 days between the even-odds date and the one-in-ten date is wider than at 88% of the 115 Alabama stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.

In fall the first 32°F night comes by November 17 in half of years, as early as November 1 one year in ten, and holds off past December 6 one year in ten. A hard freeze of 28°F follows 14 days later, around December 1; in spring the one-in-ten date for 28°F is March 17, 14 days before the 32°F one. The freeze-free season lasts 251 days in a typical year, longer than at 77% of the 115 Alabama stations; it reaches 283 days one year in ten and falls short of 223 one year in ten. On average 39 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 18 days longer, to about March 28, and return around November 5. Nights of 24°F, cold enough to damage hardier plants, come in 91% of winters and 16°F in 23%.

July is the warmest month at Evergreen Middleton Field, AL, averaging 93°F by day and 72°F at night; January is the coldest at 62°F and 38°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From April to October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 66% of years.

Warmth for growing adds up to 6,617 growing degree days a year (base 50°F), more than at 90% of the 115 Alabama stations. 42% of them (2,788) have built up by the end of June, and July adds the most, 1,011. Precipitation totals 55.5 inches a year, most in July (5.4") and least in October (3.4"); May to September bring 43% of it.

The nearest other station, Evergreen, AL, 22 miles east of Monroeville, has a last frost 3 days later (March 13), a first frost 2 days later (November 19), a season 2 days longer.

Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Claiborne L&D, AL, 12.7 miles away, so there is no typical first-snow date to plan around.

ZIP 36460 is 18 miles from Evergreen Middleton Field, AL, which stands at 258 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 36460 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°C) over 1991–2020; a zone describes winter lows, not frost dates.