Frost Dates for 37018 — Beechgrove, Tennessee

Half of springs at Wartrace 6E, TN see their last 32°F night by April 1; only one in ten is past it by March 15, and one in ten still has one after April 18. Planting tender crops after April 7 leaves a 30% risk of a frost on them, after April 12 20%, and after April 18 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 34% of the 144 Tennessee stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 2 in half of years, as early as October 20 one year in ten, and holds off past November 19 one year in ten. A hard freeze of 28°F follows 12 days later, around November 14; in spring the one-in-ten date for 28°F is April 8, 10 days before the 32°F one. The freeze-free season lasts 214 days in a typical year, longer than at 80% of the 144 Tennessee stations; it reaches 238 days one year in ten and falls short of 192 one year in ten. On average 76 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 14, and return around October 25. Severe cold of 16°F or below comes in 97% of winters, usually between December 27 and February 13.

July is the warmest month at Wartrace 6E, TN, averaging 82°F by day and 67°F at night; January is the coldest at 46°F and 28°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 50% of years.

Warmth for growing adds up to 3,920 growing degree days a year (base 50°F), fewer than at 84% of the 144 Tennessee stations. 38% of them (1,484) have built up by the end of June, and July adds the most, 756. Precipitation totals 60.3 inches a year, most in December (6.5") and least in October (3.6"); May to September bring 39% of it.

The nearest other station, Manchester #2, TN, 10 miles southeast of Beechgrove, has a last frost 12 days later (April 13), a first frost 9 days earlier (October 24), a season 22 days shorter.

The first measurable snow (0.1 inch or more) in Beechgrove usually arrives around January 7, and the last of the season around February 17. Those are the middle dates across the winters of 1991–2020 at Mc Minnville, TN, 21.8 miles away: half of years saw snow earlier, half later. Snow fell in 95% of those winters. The last 32°F night of spring typically comes 43 days after the last snow.

ZIP 37018 is 8 miles from Wartrace 6E, TN, which stands at 1,014 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 37183 (Wartrace). The 2023 USDA Plant Hardiness Zone Map lists ZIP 37018 in zone 7b, the band where the coldest night of the year averaged 5 to 10°F (-15.0 to -12.2°C) over 1991–2020; a zone describes winter lows, not frost dates.