Frost Dates for 45680 — South Point, Ohio

Half of springs at S Pt, OH see their last 32°F night by April 16; only one in ten is past it by April 2, and one in ten still has one after May 4. Planting tender crops after April 22 leaves a 30% risk of a frost on them, after April 28 20%, and after May 4 10%. The 18 days between the even-odds date and the one-in-ten date is wider than at 76% of the 148 Ohio stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 30 in half of years, as early as October 18 one year in ten, and holds off past November 10 one year in ten. A hard freeze of 28°F follows 9 days later, around November 8; in spring the one-in-ten date for 28°F is April 19, 15 days before the 32°F one. The freeze-free season lasts 196 days in a typical year, longer than at 93% of the 148 Ohio stations; it reaches 215 days one year in ten and falls short of 176 one year in ten. On average 109 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 12 days longer, to about April 28, and return around October 20. Severe cold of 16°F or below comes every winter, usually between December 20 and February 24.

July is the warmest month at S Pt, OH, averaging 86°F by day and 66°F at night; January is the coldest at 43°F and 25°F. A freezing night is all but certain in every month from November to April (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 16% of years.

Warmth for growing adds up to 3,938 growing degree days a year (base 50°F), more than at 99% of the 148 Ohio stations. 37% of them (1,445) have built up by the end of June, and July adds the most, 818. Precipitation totals 49.7 inches a year, most in July (5.7") and least in November (3.2"); May to September bring 46% of it.

The nearest other station, Huntington Swg Pl, WV, 3 miles southeast of South Point, has a last frost 4 days earlier (April 12), the same first-frost date, a season 4 days longer.

The first measurable snow (0.1 inch or more) in South Point usually arrives around December 25, and the last of the season around March 6. Those are the middle dates across the winters of 1991–2020 at Huntington Swg Pl, WV, 3.1 miles away: half of years saw snow earlier, half later. Snow fell in 95% of those winters. The last 32°F night of spring typically comes 41 days after the last snow.

ZIP 45680 is 2 miles from S Pt, OH, which stands at 553 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 45680 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°C) over 1991–2020; a zone describes winter lows, not frost dates.