Frost Dates for 38356 — Medon, Tennessee

Half of springs at Henderson 4 W, TN see their last 32°F night by April 10; only one in ten is past it by March 26, and one in ten still has one after April 26. Planting tender crops after April 17 leaves a 30% risk of a frost on them, after April 21 20%, and after April 26 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 53% of the 144 Tennessee stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 25 in half of years, as early as October 12 one year in ten, and holds off past November 8 one year in ten. A hard freeze of 28°F follows 10 days later, around November 4; in spring the one-in-ten date for 28°F is April 14, 12 days before the 32°F one. The freeze-free season lasts 200 days in a typical year, shorter than at 62% of the 144 Tennessee stations; it reaches 221 days one year in ten and falls short of 178 one year in ten. On average 92 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 23, and return around October 16. Severe cold of 16°F or below comes in 98% of winters, usually between December 15 and February 17.

July is the warmest month at Henderson 4 W, TN, averaging 89°F by day and 67°F at night; January is the coldest at 48°F and 27°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 79% of years.

Warmth for growing adds up to 4,379 growing degree days a year (base 50°F), fewer than at 60% of the 144 Tennessee stations. 38% of them (1,665) have built up by the end of June, and July adds the most, 866. Precipitation totals 61.9 inches a year, most in April (6.4") and least in August (3.7"); May to September bring 39% of it.

The nearest other station, Bolivar Wtr Wks, TN, 13 miles southwest of Medon, has a last frost 7 days earlier (April 3), a first frost 5 days later (October 30), a season 10 days longer.

The first measurable snow (0.1 inch or more) in Medon usually arrives around January 15, and the last of the season around February 4. Those are the middle dates across the winters of 1991–2020 at Jackson Exp Stn, TN, 13.3 miles away: half of years saw snow earlier, half later. Snow fell in 88% of those winters. The last 32°F night of spring typically comes 65 days after the last snow.

ZIP 38356 is 9 miles from Henderson 4 W, TN, which stands at 460 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 38340 (Henderson). The 2023 USDA Plant Hardiness Zone Map lists ZIP 38356 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.