Frost Dates for 37869 — Sneedville, Tennessee

Half of springs at Rogersville 1 NE, TN see their last 32°F night by April 14; only one in ten is past it by March 31, and one in ten still has one after May 3. Planting tender crops after April 21 leaves a 30% risk of a frost on them, after April 26 20%, and after May 3 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 24 in half of years, as early as October 11 one year in ten, and holds off past November 4 one year in ten. A hard freeze of 28°F follows 8 days later, around November 1; in spring the one-in-ten date for 28°F is April 18, 15 days before the 32°F one. The freeze-free season lasts 192 days in a typical year, shorter than at 77% of the 144 Tennessee stations; it reaches 211 days one year in ten and falls short of 171 one year in ten. On average 87 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 April 27, and return around October 15. Severe cold of 16°F or below comes every winter, usually between December 10 and February 23.

July is the warmest month at Rogersville 1 NE, TN, averaging 86°F by day and 65°F at night; January is the coldest at 45°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 88% of years and May still brings one in 14% of years.

Warmth for growing adds up to 3,883 growing degree days a year (base 50°F), fewer than at 85% of the 144 Tennessee stations. 37% of them (1,440) have built up by the end of June, and July adds the most, 781. Precipitation totals 48.8 inches a year, most in July (4.9") and least in October (2.7"); May to September bring 41% of it.

The nearest other station, Tazewell, TN, 19 miles west of Sneedville, has a last frost 9 days later (April 23), a first frost 5 days earlier (October 19), a season 15 days shorter.

The first measurable snow (0.1 inch or more) in Sneedville usually arrives around December 26, and the last of the season around March 4. Those are the middle dates across the winters of 1991–2020 at Tazewell, TN, 18.9 miles away: half of years saw snow earlier, half later. Snow fell in 97% of those winters. The last 32°F night of spring typically comes 41 days after the last snow.

ZIP 37869 is 15 miles from Rogersville 1 NE, TN, which stands at 1,355 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 3 other ZIP codes share the station; its figures are presented in full for 37857 (Rogersville). The 2023 USDA Plant Hardiness Zone Map lists ZIP 37869 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.