Frost Dates for 13753 — Delhi, New York

Half of springs at Delhi 2 SE, NY see their last 32°F night by May 19; only one in ten is past it by May 1, and one in ten still has one after June 3. Planting tender crops after May 26 leaves a 30% risk of a frost on them, after May 30 20%, and after June 3 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 29% of the 173 New York stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 1 in half of years, as early as September 17 one year in ten, and holds off past October 14 one year in ten. A hard freeze of 28°F follows 10 days later, around October 11; in spring the one-in-ten date for 28°F is May 23, 11 days before the 32°F one. The freeze-free season lasts 132 days in a typical year, shorter than at 97% of the 173 New York stations; it reaches 154 days one year in ten and falls short of 112 one year in ten. On average 169 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 14 days longer, to about June 2, and return around September 20. Severe cold of 16°F or below comes every winter, usually between November 18 and March 31.

July is the warmest month at Delhi 2 SE, NY, averaging 80°F by day and 55°F at night; January is the coldest at 32°F and 12°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From July to August the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 89% of years and June still brings one in 16% of years.

Warmth for growing adds up to 2,066 growing degree days a year (base 50°F), fewer than at 87% of the 173 New York stations. 31% of them (642) have built up by the end of June, and July adds the most, 538. Precipitation totals 48.6 inches a year, most in June (4.9") and least in February (2.8"); May to September bring 47% of it.

The nearest other station, Emmons, NY, 12 miles northwest of Delhi and 235 feet lower, has a last frost 2 days earlier (May 17), a first frost 2 days later (October 3), a season 9 days longer.

The first measurable snow (0.1 inch or more) in Delhi usually arrives around November 7, and the last of the season around April 10. Those are the middle dates across the winters of 1991–2020 at Delhi 2 SE, NY, 3.5 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 13753 is 4 miles from Delhi 2 SE, NY, which stands at 1,460 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 13753 in zone 5a, the band where the coldest night of the year averaged -20 to -15°F (-28.9 to -26.1°C) over 1991–2020; a zone describes winter lows, not frost dates.