Frost Dates for 43135 — Laurelville, Ohio

Half of springs at Circleville, OH see their last 32°F night by April 17; 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 25 leaves a 30% risk of a frost on them, after April 29 20%, and after May 4 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 24% of the 148 Ohio stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 28 in half of years, as early as October 14 one year in ten, and holds off past November 9 one year in ten. A hard freeze of 28°F follows 10 days later, around November 7; in spring the one-in-ten date for 28°F is April 23, 11 days before the 32°F one. The freeze-free season lasts 192 days in a typical year, longer than at 86% of the 148 Ohio stations; it reaches 211 days one year in ten and falls short of 170 one year in ten. On average 110 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 11 days longer, to about April 28, and return around October 17. Severe cold of 16°F or below comes every winter, usually between December 16 and March 2.

July is the warmest month at Circleville, OH, averaging 86°F by day and 65°F at night; January is the coldest at 39°F and 23°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 3,751 growing degree days a year (base 50°F), more than at 91% of the 148 Ohio stations. 37% of them (1,370) have built up by the end of June, and July adds the most, 789. Precipitation totals 41.1 inches a year, most in June (4.7") and least in February (2.5"); May to September bring 47% of it.

The nearest other station, Chillicothe Mound City, OH, 17 miles southwest of Laurelville, has a last frost 3 days later (April 20), a first frost 6 days earlier (October 22), a season 8 days shorter.

The first measurable snow (0.1 inch or more) in Laurelville usually arrives around December 31, and the last of the season around February 18. Those are the middle dates across the winters of 1991–2020 at Laurelville, OH, 1.3 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 58 days after the last snow.

ZIP 43135 is 16 miles from Circleville, OH, which stands at 675 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 4 other ZIP codes share the station; its figures are presented in full for 43113 (Circleville). The 2023 USDA Plant Hardiness Zone Map lists ZIP 43135 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.