Frost Dates for 18332 — Henryville, Pennsylvania

Half of springs at E Stroudsburg, PA see their last 32°F night by May 1; only one in ten is past it by April 18, and one in ten still has one after May 18. Planting tender crops after May 7 leaves a 30% risk of a frost on them, after May 12 20%, and after May 18 10%. The 17 days between the even-odds date and the one-in-ten date is wider than at 50% of the 176 Pennsylvania stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 12 in half of years, as early as October 1 one year in ten, and holds off past October 28 one year in ten. A hard freeze of 28°F follows 11 days later, around October 23; in spring the one-in-ten date for 28°F is May 6, 12 days before the 32°F one. The freeze-free season lasts 163 days in a typical year, shorter than at 70% of the 176 Pennsylvania stations; it reaches 183 days one year in ten and falls short of 141 one year in ten. On average 137 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 14, and return around October 3. Severe cold of 16°F or below comes every winter, usually between December 1 and March 11.

July is the warmest month at E Stroudsburg, PA, averaging 84°F by day and 61°F at night; January is the coldest at 36°F and 19°F. A freezing night is all but certain in every month from October 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 50% of years.

Warmth for growing adds up to 2,873 growing degree days a year (base 50°F), fewer than at 57% of the 176 Pennsylvania stations. 34% of them (963) have built up by the end of June, and July adds the most, 702. Precipitation totals 53.4 inches a year, most in June (5.5") and least in February (3.1"); May to September bring 46% of it.

The nearest other station, Mt Pocono Mountains Airport, PA, 7 miles northwest of Henryville and 1,445 feet higher, has a last frost 5 days later (May 6), a first frost 4 days earlier (October 8), a season 9 days shorter.

The first measurable snow (0.1 inch or more) in Henryville usually arrives around November 26, and the last of the season around March 27. Those are the middle dates across the winters of 1991–2020 at E Stroudsburg, PA, 6.2 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 35 days after the last snow.

ZIP 18332 is 6 miles from E Stroudsburg, PA, which stands at 471 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 6 other ZIP codes share the station; its figures are presented in full for 18360 (Stroudsburg). The 2023 USDA Plant Hardiness Zone Map lists ZIP 18332 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.