Frost Dates for 45623 — Crown City, Ohio

Half of springs at Hogsett Rc Byrd Dam, WV see their last 32°F night by April 18; only one in ten is past it by April 3, and one in ten still has one after May 5. Planting tender crops after April 24 leaves a 30% risk of a frost on them, after April 30 20%, and after May 5 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 29 in half of years, as early as October 16 one year in ten, and holds off past November 9 one year in ten. A hard freeze of 28°F follows 9 days later, around November 7; in spring the one-in-ten date for 28°F is April 20, 15 days before the 32°F one. The freeze-free season lasts 192 days in a typical year, longer than at 86% of the 148 Ohio stations; it reaches 212 days one year in ten and falls short of 173 one year in ten. On average 107 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 30, and return around October 19. Severe cold of 16°F or below comes every winter, usually between December 12 and February 28.

July is the warmest month at Hogsett Rc Byrd Dam, WV, averaging 85°F by day and 64°F at night; January is the coldest at 40°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 19% of years.

Warmth for growing adds up to 3,514 growing degree days a year (base 50°F), more than at 78% of the 148 Ohio stations. 35% of them (1,246) have built up by the end of June, and July adds the most, 759. Precipitation totals 42.3 inches a year, most in July (4.3") and least in October (2.7"); May to September bring 46% of it.

The nearest other station, Waterloo, OH, 12 miles northwest of Crown City, has a last frost 12 days later (April 30), a first frost 14 days earlier (October 15), a season 25 days shorter.

The first measurable snow (0.1 inch or more) in Crown City usually arrives around December 27, and the last of the season around March 8. Those are the middle dates across the winters of 1991–2020 at Hogsett Rc Byrd Dam, WV, 5.9 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 41 days after the last snow.

ZIP 45623 is 6 miles from Hogsett Rc Byrd Dam, WV, which stands at 570 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 45623 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°C) over 1991–2020; a zone describes winter lows, not frost dates.