Frost Dates for 12149 — Richmondville, New York

Half of springs at Cobleskill 2 ESE, NY see their last 32°F night by May 9; only one in ten is past it by April 26, and one in ten still has one after May 26. Planting tender crops after May 16 leaves a 30% risk of a frost on them, after May 20 20%, and after May 26 10%. The 17 days between the even-odds date and the one-in-ten date is wider than at 90% of the 173 New York stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 4 in half of years, as early as September 19 one year in ten, and holds off past October 20 one year in ten. A hard freeze of 28°F follows 11 days later, around October 15; in spring the one-in-ten date for 28°F is May 15, 11 days before the 32°F one. The freeze-free season lasts 148 days in a typical year, shorter than at 76% of the 173 New York stations; it reaches 168 days one year in ten and falls short of 126 one year in ten. On average 155 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 11 days longer, to about May 20, and return around September 25. Severe cold of 16°F or below comes every winter, usually between November 22 and March 30.

July is the warmest month at Cobleskill 2 ESE, NY, averaging 80°F by day and 58°F at night; January is the coldest at 31°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 77% of years.

Warmth for growing adds up to 2,209 growing degree days a year (base 50°F), fewer than at 76% of the 173 New York stations. 31% of them (687) have built up by the end of June, and July adds the most, 586. Precipitation totals 41.0 inches a year, most in August (4.3") and least in February (2.2"); May to September bring 49% of it.

The nearest other station, Lansing Manor, NY, 14 miles southeast of Richmondville, has a last frost 9 days later (May 18), a first frost 2 days earlier (October 2), a season 11 days shorter.

The first measurable snow (0.1 inch or more) in Richmondville usually arrives around November 19, and the last of the season around March 30. Those are the middle dates across the winters of 1991–2020 at Cobleskill 2 ESE, NY, 7 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 40 days after the last snow.

ZIP 12149 is 7 miles from Cobleskill 2 ESE, NY, which stands at 1,169 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 12043 (Cobleskill). The 2023 USDA Plant Hardiness Zone Map lists ZIP 12149 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.