Frost Dates for 45120 — Felicity, Ohio

Half of springs at Chilo Meldahl Locks & Dam, OH see their last 32°F night by April 16; 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 22 leaves a 30% risk of a frost on them, after April 27 20%, and after May 4 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 31 in half of years, as early as October 17 one year in ten, and holds off past November 12 one year in ten. A hard freeze of 28°F follows 9 days later, around November 9; in spring the one-in-ten date for 28°F is April 20, 14 days before the 32°F one. The freeze-free season lasts 196 days in a typical year, longer than at 93% of the 148 Ohio stations; it reaches 215 days one year in ten and falls short of 175 one year in ten. On average 104 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 12 days longer, to about April 28, and return around October 19. Severe cold of 16°F or below comes every winter, usually between December 16 and March 1.

July is the warmest month at Chilo Meldahl Locks & Dam, OH, averaging 87°F by day and 65°F at night; January is the coldest at 41°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 14% of years.

Warmth for growing adds up to 3,769 growing degree days a year (base 50°F), more than at 95% of the 148 Ohio stations. 35% of them (1,318) have built up by the end of June, and July adds the most, 801. Precipitation totals 42.2 inches a year, most in May (4.6") and least in October (2.7"); May to September bring 44% of it.

The nearest other station, Augusta 2, KY, 6 miles southeast of Felicity, has a last frost 5 days earlier (April 11), a first frost 1 day earlier (October 30), a season 4 days longer.

The first measurable snow (0.1 inch or more) in Felicity usually arrives around December 4, and the last of the season around March 13. Those are the middle dates across the winters of 1991–2020 at Ripley Exp Farm, OH, 16.4 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 34 days after the last snow.

ZIP 45120 is 4 miles from Chilo Meldahl Locks & Dam, OH, which stands at 480 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 5 other ZIP codes share the station; its figures are presented in full for 45106 (Bethel). The 2023 USDA Plant Hardiness Zone Map lists ZIP 45120 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.