Frost Dates for 13354 — Holland Patent, New York

Half of springs at Trenton Falls, NY see their last 32°F night by May 4; only one in ten is past it by April 20, and one in ten still has one after May 23. Planting tender crops after May 11 leaves a 30% risk of a frost on them, after May 16 20%, and after May 23 10%. The 19 days between the even-odds date and the one-in-ten date is wider than at 98% of the 173 New York stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 13 in half of years, as early as September 29 one year in ten, and holds off past October 29 one year in ten. A hard freeze of 28°F follows 15 days later, around October 28; in spring the one-in-ten date for 28°F is May 8, 15 days before the 32°F one. The freeze-free season lasts 161 days in a typical year, shorter than at 53% of the 173 New York stations; it reaches 183 days one year in ten and falls short of 138 one year in ten. On average 152 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 13 days longer, to about May 17, and return around October 1. Severe cold of 16°F or below comes every winter, usually between November 24 and March 29.

July is the warmest month at Trenton Falls, NY, averaging 79°F by day and 59°F at night; January is the coldest at 29°F and 10°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 59% of years.

Warmth for growing adds up to 2,233 growing degree days a year (base 50°F), fewer than at 73% of the 173 New York stations. 31% of them (692) have built up by the end of June, and July adds the most, 586.

The nearest other station, Rome Griffiss Airfield, NY, 8 miles west of Holland Patent and 281 feet lower, has a last frost 2 days later (May 6), the same first-frost date, a season 4 days shorter.

The first measurable snow (0.1 inch or more) in Holland Patent usually arrives around November 2, and the last of the season around April 20. Those are the middle dates across the winters of 1991–2020 at Boonville 4 SSW, NY, 13.3 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 14 days after the last snow.

ZIP 13354 is 5 miles from Trenton Falls, NY, which stands at 800 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 13438 (Remsen). The 2023 USDA Plant Hardiness Zone Map lists ZIP 13354 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.