Frost Dates for 27249 — Gibsonville, North Carolina

Half of springs at Burlington Alamance Airport, NC see their last 32°F night by April 1; only one in ten is past it by March 13, and one in ten still has one after April 17. Planting tender crops after April 7 leaves a 30% risk of a frost on them, after April 12 20%, and after April 17 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 35% of the 173 North Carolina stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 2 in half of years, as early as October 21 one year in ten, and holds off past November 16 one year in ten. A hard freeze of 28°F follows 11 days later, around November 13; in spring the one-in-ten date for 28°F is April 3, 14 days before the 32°F one. The freeze-free season lasts 215 days in a typical year, shorter than at 54% of the 173 North Carolina stations; it reaches 237 days one year in ten and falls short of 194 one year in ten. On average 78 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 13 days longer, to about April 14, and return around October 25. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 87%.

July is the warmest month at Burlington Alamance Airport, NC, averaging 91°F by day and 70°F at night; January is the coldest at 52°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 50% of years.

Warmth for growing adds up to 4,922 growing degree days a year (base 50°F), more than at 64% of the 173 North Carolina stations. 39% of them (1,929) have built up by the end of June, and July adds the most, 935. Precipitation totals 43.4 inches a year, most in July (4.7") and least in February (2.8"); May to September bring 47% of it.

The nearest other station, Burlington Fire Stn #5, NC, 8 miles southeast of Gibsonville, has a last frost 3 days earlier (March 29), a first frost 7 days later (November 9), a season 11 days longer.

The first measurable snow (0.1 inch or more) in Gibsonville usually arrives around January 9, and the last of the season around February 21. Those are the middle dates across the winters of 1991–2020 at Piedmont Triad International Airport, NC, 21.3 miles away: half of years saw snow earlier, half later. Snow fell in 93% of those winters. The last 32°F night of spring typically comes 39 days after the last snow.

ZIP 27249 is 7 miles from Burlington Alamance Airport, NC, which stands at 617 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 27249 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.