Frost Dates for 44904 — Lexington, Ohio

Half of springs at Mansfield 5 W, OH see their last 32°F night by April 30; only one in ten is past it by April 16, and one in ten still has one after May 17. Planting tender crops after May 7 leaves a 30% risk of a frost on them, after May 11 20%, and after May 17 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 15 in half of years, as early as October 1 one year in ten, and holds off past October 29 one year in ten. A hard freeze of 28°F follows 13 days later, around October 28; in spring the one-in-ten date for 28°F is May 7, 10 days before the 32°F one. The freeze-free season lasts 167 days in a typical year, shorter than at 87% of the 148 Ohio stations; it reaches 186 days one year in ten and falls short of 145 one year in ten. On average 135 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 9, and return around October 4. Severe cold of 16°F or below comes every winter, usually between November 29 and March 19.

July is the warmest month at Mansfield 5 W, OH, averaging 83°F by day and 61°F at night; January is the coldest at 34°F and 17°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 47% of years.

Warmth for growing adds up to 3,033 growing degree days a year (base 50°F), fewer than at 76% of the 148 Ohio stations. 35% of them (1,071) have built up by the end of June, and July adds the most, 688. Precipitation totals 42.7 inches a year, most in May (4.7") and least in February (2.4"); May to September bring 47% of it.

The nearest other station, Mansfield Lahm Municipal Airport, OH, 10 miles north of Lexington, has a last frost 4 days earlier (April 26), a first frost 7 days later (October 22), a season 10 days longer.

The first measurable snow (0.1 inch or more) in Lexington usually arrives around November 14, and the last of the season around April 7. Those are the middle dates across the winters of 1991–2020 at Mansfield Lahm Municipal Airport, OH, 10.4 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 23 days after the last snow.

ZIP 44904 is 6 miles from Mansfield 5 W, OH, which stands at 1,350 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 44906 (Mansfield). The 2023 USDA Plant Hardiness Zone Map lists ZIP 44904 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.