Frost Dates for 43055 — Newark, Ohio

Half of springs at Newark Wtr Wks, OH see their last 32°F night by April 29; only one in ten is past it by April 17, and one in ten still has one after May 17. Planting tender crops after May 5 leaves a 30% risk of a frost on them, after May 10 20%, and after May 17 10%. The 18 days between the even-odds date and the one-in-ten date is wider than at 76% of the 148 Ohio stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 16 in half of years, as early as October 1 one year in ten, and holds off past October 28 one year in ten. A hard freeze of 28°F follows 11 days later, around October 27; in spring the one-in-ten date for 28°F is May 3, 14 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 148 one year in ten. On average 129 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 10 days longer, to about May 9, and return around October 4. Severe cold of 16°F or below comes every winter, usually between December 1 and March 14.

July is the warmest month at Newark Wtr Wks, OH, averaging 84°F by day and 61°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 43% of years.

Warmth for growing adds up to 2,991 growing degree days a year (base 50°F), fewer than at 80% of the 148 Ohio stations. 35% of them (1,047) have built up by the end of June, and July adds the most, 701. Precipitation totals 43.4 inches a year, most in June (4.7") and least in February (2.6"); May to September bring 47% of it.

The nearest other station, Newark Heath Airport, OH, 5 miles southwest of Newark, has a last frost 7 days earlier (April 22), a first frost 2 days later (October 18), a season 11 days longer.

The first measurable snow (0.1 inch or more) in Newark usually arrives around December 14, and the last of the season around March 7. Those are the middle dates across the winters of 1991–2020 at Newark Wtr Wks, OH, 0.9 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 43055 is under a mile from Newark Wtr Wks, OH, which stands at 835 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 5 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 43055 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.