Frost Dates for 24091 — Floyd, Virginia

Half of springs at Floyd 2 NE, VA see their last 32°F night by April 30; only one in ten is past it by April 17, and one in ten still has one after May 18. Planting tender crops after May 8 leaves a 30% risk of a frost on them, after May 12 20%, and after May 18 10%. The 18 days between the even-odds date and the one-in-ten date is wider than at 52% of the 128 Virginia stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 10 in half of years, as early as September 27 one year in ten, and holds off past October 23 one year in ten. A hard freeze of 28°F follows 10 days later, around October 20; in spring the one-in-ten date for 28°F is May 7, 11 days before the 32°F one. The freeze-free season lasts 159 days in a typical year, shorter than at 98% of the 128 Virginia stations; it reaches 180 days one year in ten and falls short of 140 one year in ten. On average 131 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 11, and return around October 3. Severe cold of 16°F or below comes every winter, usually between November 28 and March 9.

July is the warmest month at Floyd 2 NE, VA, averaging 81°F by day and 61°F at night; January is the coldest at 41°F and 23°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 50% of years.

Warmth for growing adds up to 2,712 growing degree days a year (base 50°F), fewer than at 98% of the 128 Virginia stations. 35% of them (938) have built up by the end of June, and July adds the most, 640.

The nearest other station, Copper Hill, VA, 15 miles northeast of Floyd and 221 feet higher, has a last frost 9 days earlier (April 21), a first frost 15 days later (October 25), a season 27 days longer.

The first measurable snow (0.1 inch or more) in Floyd usually arrives around December 19, and the last of the season around March 4. Those are the middle dates across the winters of 1991–2020 at Floyd 2 NE, VA, 1.6 miles away: half of years saw snow earlier, half later. Snow fell in 81% of those winters. The last 32°F night of spring typically comes 57 days after the last snow.

ZIP 24091 is 2 miles from Floyd 2 NE, VA, which stands at 2,625 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 24091 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°C) over 1991–2020; a zone describes winter lows, not frost dates.