Frost Dates for 29570 — Mc Coll, South Carolina

Half of springs at Mccoll 3 NNW, SC see their last 32°F night by March 26; only one in ten is past it by March 9, and one in ten still has one after April 12. Planting tender crops after April 2 leaves a 30% risk of a frost on them, after April 6 20%, and after April 12 10%. The 17 days between the even-odds date and the one-in-ten date is wider than at 57% of the 105 South Carolina stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 8 in half of years, as early as October 26 one year in ten, and holds off past November 27 one year in ten. A hard freeze of 28°F follows 13 days later, around November 21; in spring the one-in-ten date for 28°F is April 1, 11 days before the 32°F one. The freeze-free season lasts 228 days in a typical year, shorter than at 55% of the 105 South Carolina stations; it reaches 253 days one year in ten and falls short of 209 one year in ten. On average 54 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 10 days longer, to about April 5, and return around October 30. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 63%.

July is the warmest month at Mccoll 3 NNW, SC, averaging 92°F by day and 71°F at night; January is the coldest at 55°F and 34°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 34% of years.

Warmth for growing adds up to 5,548 growing degree days a year (base 50°F), more than at 63% of the 105 South Carolina stations. 41% of them (2,256) have built up by the end of June, and July adds the most, 966. Precipitation totals 41.6 inches a year, most in September (4.7") and least in October (2.7"); May to September bring 48% of it.

The nearest other station, Laurinburg, NC, 7 miles northeast of Mc Coll, has a last frost 5 days earlier (March 21), a first frost 6 days later (November 14), a season 11 days longer.

Measurable snow is rare here: only 4 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Mccoll 3 NNW, SC, 2.5 miles away, so there is no typical first-snow date to plan around.

ZIP 29570 is 3 miles from Mccoll 3 NNW, SC, which stands at 190 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 29512 (Bennettsville). The 2023 USDA Plant Hardiness Zone Map lists ZIP 29570 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.