Frost Dates for 44882 — Sycamore, Ohio

Half of springs at Upper Sandusky, OH see their last 32°F night by April 29; only one in ten is past it by April 13, and one in ten still has one after May 14. Planting tender crops after May 4 leaves a 30% risk of a frost on them, after May 8 20%, and after May 14 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 77% of the 148 Ohio stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 17 in half of years, as early as October 2 one year in ten, and holds off past October 31 one year in ten. A hard freeze of 28°F follows 11 days later, around October 28; in spring the one-in-ten date for 28°F is May 5, 9 days before the 32°F one. The freeze-free season lasts 171 days in a typical year, shorter than at 79% of the 148 Ohio stations; it reaches 191 days one year in ten and falls short of 149 one year in ten. On average 130 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 8 days longer, to about May 7, and return around October 6. Severe cold of 16°F or below comes every winter, usually between December 1 and March 15.

July is the warmest month at Upper Sandusky, OH, averaging 84°F by day and 62°F at night; January is the coldest at 33°F and 17°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 43% of years.

Warmth for growing adds up to 3,045 growing degree days a year (base 50°F), fewer than at 74% of the 148 Ohio stations. 35% of them (1,055) have built up by the end of June, and July adds the most, 708. Precipitation totals 40.1 inches a year, most in June (4.6") and least in February (2.0"); May to September bring 52% of it.

The nearest other station, Tiffin, OH, 11 miles north of Sycamore, has a last frost 6 days earlier (April 23), a first frost 6 days later (October 23), a season 13 days longer.

The first measurable snow (0.1 inch or more) in Sycamore usually arrives around December 8, and the last of the season around February 26. Those are the middle dates across the winters of 1991–2020 at Upper Sandusky, OH, 11.1 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 62 days after the last snow.

ZIP 44882 is 11 miles from Upper Sandusky, OH, which stands at 854 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 43351 (Upper Sandusky). The 2023 USDA Plant Hardiness Zone Map lists ZIP 44882 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.