Frost Dates for 07666 — Teaneck, New Jersey

Half of springs at Teterboro Airport, NJ see their last 32°F night by April 3; only one in ten is past it by March 20, and one in ten still has one after April 16. Planting tender crops after April 7 leaves a 30% risk of a frost on them, after April 10 20%, and after April 16 10%. The 13 days between the even-odds date and the one-in-ten date is narrower than at 82% of the 56 New Jersey stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 4 in half of years, as early as October 21 one year in ten, and holds off past November 20 one year in ten. A hard freeze of 28°F follows 12 days later, around November 16; in spring the one-in-ten date for 28°F is April 4, 12 days before the 32°F one. The freeze-free season lasts 215 days in a typical year, longer than at 80% of the 56 New Jersey stations; it reaches 233 days one year in ten and falls short of 195 one year in ten. On average 89 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 April 16, and return around October 24. Severe cold of 16°F or below comes in 99% of winters, usually between December 31 and February 19.

July is the warmest month at Teterboro Airport, NJ, averaging 87°F by day and 69°F at night; January is the coldest at 40°F and 26°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 61% of years.

Warmth for growing adds up to 3,853 growing degree days a year (base 50°F), more than at 84% of the 56 New Jersey stations. 33% of them (1,276) have built up by the end of June, and July adds the most, 866. Precipitation totals 46.4 inches a year, most in July (4.5") and least in February (2.8"); May to September bring 45% of it.

The nearest other station, New York Cntrl Pk Twr, NY, 8 miles south of Teaneck, has a last frost 4 days earlier (March 30), a first frost 16 days later (November 20), a season 21 days longer.

The first measurable snow (0.1 inch or more) in Teaneck usually arrives around December 10, and the last of the season around March 18. Those are the middle dates across the winters of 1991–2020 at New York Cntrl Pk Twr, NY, 8 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 16 days after the last snow.

ZIP 07666 is 4 miles from Teterboro Airport, NJ, which stands at 9 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 40 other ZIP codes share the station; its figures are presented in full for 07055 (Passaic). The 2023 USDA Plant Hardiness Zone Map lists ZIP 07666 in zone 7b, the band where the coldest night of the year averaged 5 to 10°F (-15.0 to -12.2°C) over 1991–2020; a zone describes winter lows, not frost dates.