Frost Dates for 14830 — Corning, New York

Half of springs at Corning, NY see their last 32°F night by May 17; only one in ten is past it by April 30, and one in ten still has one after May 31. Planting tender crops after May 24 leaves a 30% risk of a frost on them, after May 27 20%, and after May 31 10%. The 14 days between the even-odds date and the one-in-ten date is narrower than at 63% of the 173 New York stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 2 in half of years, as early as September 21 one year in ten, and holds off past October 16 one year in ten. A hard freeze of 28°F follows 11 days later, around October 13; in spring the one-in-ten date for 28°F is May 20, 11 days before the 32°F one. The freeze-free season lasts 139 days in a typical year, shorter than at 91% of the 173 New York stations; it reaches 160 days one year in ten and falls short of 121 one year in ten. On average 163 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 May 29, and return around September 24. Severe cold of 16°F or below comes every winter, usually between November 19 and March 31.

July is the warmest month at Corning, NY, averaging 79°F by day and 55°F at night; January is the coldest at 30°F and 12°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From June to August the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 88% of years.

Warmth for growing adds up to 1,966 growing degree days a year (base 50°F), fewer than at 94% of the 173 New York stations. 31% of them (616) have built up by the end of June, and July adds the most, 530. Precipitation totals 38.9 inches a year, most in June (4.2") and least in February (1.9"); May to September bring 49% of it.

The nearest other station, Elmira Corning Regional Airport, NY, 8 miles east of Corning and 192 feet lower, has a last frost 8 days earlier (May 9), a first frost 7 days later (October 9), a season 12 days longer.

The first measurable snow (0.1 inch or more) in Corning usually arrives around November 12, and the last of the season around April 8. Those are the middle dates across the winters of 1991–2020 at Corning, NY, 1.2 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 39 days after the last snow.

ZIP 14830 is 1 mile from Corning, NY, which stands at 1,147 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 14830 in zone 5b, the band where the coldest night of the year averaged -15 to -10°F (-26.1 to -23.3°C) over 1991–2020; a zone describes winter lows, not frost dates.