Frost Dates for 14063 — Fredonia, New York

Half of springs at Fredonia, NY see their last 32°F night by April 25; only one in ten is past it by April 12, and one in ten still has one after May 9. Planting tender crops after April 30 leaves a 30% risk of a frost on them, after May 4 20%, and after May 9 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 November 1 in half of years, as early as October 13 one year in ten, and holds off past November 16 one year in ten. A hard freeze of 28°F follows 11 days later, around November 12; in spring the one-in-ten date for 28°F is April 27, 12 days before the 32°F one. The freeze-free season lasts 185 days in a typical year, longer than at 81% of the 173 New York stations; it reaches 208 days one year in ten and falls short of 163 one year in ten. On average 113 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 6, and return around October 16. Severe cold of 16°F or below comes every winter, usually between December 16 and March 16.

July is the warmest month at Fredonia, NY, averaging 81°F by day and 64°F at night; January is the coldest at 34°F and 21°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 29% of years.

Warmth for growing adds up to 2,986 growing degree days a year (base 50°F), more than at 84% of the 173 New York stations. 32% of them (963) have built up by the end of June, and July adds the most, 688. Precipitation totals 41.2 inches a year, most in October (4.7") and least in February (2.1"); May to September bring 45% of it.

The nearest other station, Dunkirk, NY, 3 miles north of Fredonia, has a last frost 5 days later (April 30), a first frost 9 days earlier (October 23), a season 10 days shorter.

The first measurable snow (0.1 inch or more) in Fredonia usually arrives around November 24, and the last of the season around March 24. Those are the middle dates across the winters of 1991–2020 at Fredonia, NY, 2.1 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 32 days after the last snow.

ZIP 14063 is 2 miles from Fredonia, NY, which stands at 760 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 14063 in zone 6b, the band where the coldest night of the year averaged -5 to 0°F (-20.6 to -17.8°C) over 1991–2020; a zone describes winter lows, not frost dates.