Frost Dates for 01050 — Huntington, Massachusetts

Half of springs at Worthington, MA see their last 32°F night by May 13; only one in ten is past it by April 29, and one in ten still has one after May 26. Planting tender crops after May 18 leaves a 30% risk of a frost on them, after May 21 20%, and after May 26 10%. The 13 days between the even-odds date and the one-in-ten date is narrower than at 51% of the 71 Massachusetts stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 2 in half of years, as early as September 20 one year in ten, and holds off past October 15 one year in ten. A hard freeze of 28°F follows 12 days later, around October 14; in spring the one-in-ten date for 28°F is May 13, 13 days before the 32°F one. The freeze-free season lasts 144 days in a typical year, shorter than at 99% of the 71 Massachusetts stations; it reaches 162 days one year in ten and falls short of 123 one year in ten. On average 168 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 12 days longer, to about May 25, and return around September 22. Severe cold of 16°F or below comes every winter, usually between November 20 and March 28.

July is the warmest month at Worthington, MA, averaging 80°F by day and 56°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 June to August the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 85% of years.

Warmth for growing adds up to 2,046 growing degree days a year (base 50°F), the fewest of the 71 Massachusetts stations. 30% of them (622) have built up by the end of June, and July adds the most, 556. Precipitation totals 54.3 inches a year, most in October (5.6") and least in February (3.6"); May to September bring 43% of it.

The nearest other station, Westfield Barnes Municipal Airport, MA, 12 miles southeast of Huntington and 1,014 feet lower, has a last frost 10 days earlier (May 3), a first frost 6 days later (October 8), a season 14 days longer.

The first measurable snow (0.1 inch or more) in Huntington usually arrives around November 8, and the last of the season around April 9. Those are the middle dates across the winters of 1991–2020 at Worthington, MA, 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 34 days after the last snow.

ZIP 01050 is 7 miles from Worthington, MA, which stands at 1,285 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 01050 in zone 6a, the band where the coldest night of the year averaged -10 to -5°F (-23.3 to -20.6°C) over 1991–2020; a zone describes winter lows, not frost dates.