Frost Dates for 15554 — New Paris, Pennsylvania

Half of springs at Wolfsburg, PA see their last 32°F night by April 29; only one in ten is past it by April 12, 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 11 20%, and after May 18 10%. The 19 days between the even-odds date and the one-in-ten date is wider than at 90% of the 176 Pennsylvania stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 13 in half of years, as early as September 29 one year in ten, and holds off past October 30 one year in ten. A hard freeze of 28°F follows 14 days later, around October 27; 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 167 days in a typical year, shorter than at 65% of the 176 Pennsylvania stations; it reaches 189 days one year in ten and falls short of 142 one year in ten. On average 142 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 11, and return around October 3. Severe cold of 16°F or below comes every winter, usually between December 4 and March 10.

July is the warmest month at Wolfsburg, PA, averaging 86°F by day and 60°F at night; January is the coldest at 37°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 August the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 45% of years.

Warmth for growing adds up to 2,881 growing degree days a year (base 50°F), fewer than at 56% of the 176 Pennsylvania stations. 34% of them (983) have built up by the end of June, and July adds the most, 700. Precipitation totals 40.6 inches a year, most in May (4.4") and least in February (2.3"); May to September bring 48% of it.

The nearest other station, Shawnee Sp, PA, 7 miles southwest of New Paris, has a last frost 5 days later (May 4), a first frost 3 days earlier (October 10), a season 9 days shorter.

The first measurable snow (0.1 inch or more) in New Paris usually arrives around November 27, and the last of the season around March 31. Those are the middle dates across the winters of 1991–2020 at Wolfsburg, PA, 6.6 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 29 days after the last snow.

ZIP 15554 is 7 miles from Wolfsburg, PA, which stands at 1,185 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 15522 (Bedford). The 2023 USDA Plant Hardiness Zone Map lists ZIP 15554 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.