Frost Dates for 43952 — Steubenville, Ohio

Half of springs at Steubenville, OH see their last 32°F night by April 29; only one in ten is past it by April 16, and one in ten still has one after May 15. Planting tender crops after May 5 leaves a 30% risk of a frost on them, after May 8 20%, and after May 15 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 53% of the 148 Ohio stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 20 in half of years, as early as October 6 one year in ten, and holds off past November 1 one year in ten. A hard freeze of 28°F follows 11 days later, around October 31; in spring the one-in-ten date for 28°F is May 3, 12 days before the 32°F one. The freeze-free season lasts 175 days in a typical year, shorter than at 68% of the 148 Ohio stations; it reaches 192 days one year in ten and falls short of 155 one year in ten. On average 116 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 9 days longer, to about May 8, and return around October 9. Severe cold of 16°F or below comes every winter, usually between December 4 and March 18.

July is the warmest month at Steubenville, OH, averaging 83°F by day and 63°F at night; January is the coldest at 37°F and 19°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 42% of years.

Warmth for growing adds up to 3,047 growing degree days a year (base 50°F), fewer than at 73% of the 148 Ohio stations. 34% of them (1,047) have built up by the end of June, and July adds the most, 704. Precipitation totals 43.2 inches a year, most in June (4.9") and least in February (2.5"); May to September bring 47% of it.

The nearest other station, New Cumberland L/D, WV, 11 miles north of Steubenville and 317 feet lower, has a last frost 7 days earlier (April 22), a first frost 8 days later (October 28), a season 11 days longer.

The first measurable snow (0.1 inch or more) in Steubenville usually arrives around December 13, and the last of the season around February 26. Those are the middle dates across the winters of 1991–2020 at Steubenville, OH, 0.5 miles away: half of years saw snow earlier, half later. Snow fell in 87% of those winters. The last 32°F night of spring typically comes 62 days after the last snow.

ZIP 43952 is under a mile from Steubenville, OH, which stands at 992 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 8 other ZIP codes share the station; its figures are presented in full for 26062 (Weirton). The 2023 USDA Plant Hardiness Zone Map lists ZIP 43952 in zone 6b, the band where the coldest night of the year averaged -5 to 0°F (-20.6 to -17.8°C) over 1991–2020; a zone describes winter lows, not frost dates.