Frost Dates for 44637 — Killbuck, Ohio

Half of springs at Millersburg, OH see their last 32°F night by May 2; only one in ten is past it by April 18, and one in ten still has one after May 21. Planting tender crops after May 10 leaves a 30% risk of a frost on them, after May 15 20%, and after May 21 10%. The 19 days between the even-odds date and the one-in-ten date is wider than at 92% of the 148 Ohio stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 14 in half of years, as early as October 1 one year in ten, and holds off past October 27 one year in ten. A hard freeze of 28°F follows 12 days later, around October 26; in spring the one-in-ten date for 28°F is May 10, 11 days before the 32°F one. The freeze-free season lasts 164 days in a typical year, shorter than at 93% of the 148 Ohio stations; it reaches 184 days one year in ten and falls short of 141 one year in ten. On average 141 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 May 13, and return around October 3. Severe cold of 16°F or below comes every winter, usually between November 30 and March 15.

July is the warmest month at Millersburg, OH, averaging 84°F by day and 60°F at night; January is the coldest at 36°F and 18°F. A freezing night is all but certain in every month from October 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 52% of years.

Warmth for growing adds up to 2,884 growing degree days a year (base 50°F), fewer than at 86% of the 148 Ohio stations. 35% of them (996) have built up by the end of June, and July adds the most, 682. Precipitation totals 40.8 inches a year, most in June (4.9") and least in February (2.1"); May to September bring 49% of it.

The nearest other station, Coshocton Ag Rsch Stn, OH, 14 miles southeast of Killbuck and 321 feet higher, has a last frost 14 days earlier (April 18), a first frost 14 days later (October 28), a season 26 days longer.

The first measurable snow (0.1 inch or more) in Killbuck usually arrives around December 11, and the last of the season around March 10. Those are the middle dates across the winters of 1991–2020 at Millersburg, OH, 6 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 53 days after the last snow.

ZIP 44637 is 6 miles from Millersburg, OH, which stands at 819 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 3 other ZIP codes share the station; its figures are presented in full for 44654 (Millersburg). The 2023 USDA Plant Hardiness Zone Map lists ZIP 44637 in zone 6a, the band where the coldest night of the year averaged -10 to -5°F (-23.3 to -20.6°C) over 1991–2020; a zone describes winter lows, not frost dates.