Frost Dates for 38572 — Crossville, Tennessee

Half of springs at Crossville Mem Airport, TN see their last 32°F night by April 16; only one in ten is past it by March 30, and one in ten still has one after May 5. Planting tender crops after April 24 leaves a 30% risk of a frost on them, after April 30 20%, and after May 5 10%. The 19 days between the even-odds date and the one-in-ten date is wider than at 84% of the 144 Tennessee stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 23 in half of years, as early as October 12 one year in ten, and holds off past November 4 one year in ten. A hard freeze of 28°F follows 9 days later, around November 1; in spring the one-in-ten date for 28°F is April 20, 15 days before the 32°F one. The freeze-free season lasts 189 days in a typical year, shorter than at 83% of the 144 Tennessee stations; it reaches 211 days one year in ten and falls short of 166 one year in ten. On average 84 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 14 days longer, to about April 30, and return around October 14. Severe cold of 16°F or below comes every winter, usually between December 9 and February 26.

July is the warmest month at Crossville Mem Airport, TN, averaging 83°F by day and 64°F at night; January is the coldest at 44°F and 26°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 84% of years and May still brings one in 17% of years.

Warmth for growing adds up to 3,613 growing degree days a year (base 50°F), fewer than at 93% of the 144 Tennessee stations. 37% of them (1,336) have built up by the end of June, and July adds the most, 738. Precipitation totals 57.4 inches a year, most in April (5.5") and least in October (3.1"); May to September bring 41% of it.

The nearest other station, Crossville Ed & Research, TN, 11 miles north of Crossville, has a last frost 3 days later (April 19), a first frost 1 day earlier (October 22), a season 4 days shorter.

The first measurable snow (0.1 inch or more) in Crossville usually arrives around December 18, and the last of the season around March 3. Those are the middle dates across the winters of 1991–2020 at Crossville Ed & Research, TN, 10.8 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 44 days after the last snow.

ZIP 38572 is 6 miles from Crossville Mem Airport, TN, which stands at 1,867 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 38555 (Crossville). The 2023 USDA Plant Hardiness Zone Map lists ZIP 38572 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.