Frost Dates for 37029 — Burns, Tennessee

Half of springs at Montgomery Bell Sp, TN see their last 32°F night by April 16; only one in ten is past it by March 29, and one in ten still has one after May 2. Planting tender crops after April 23 leaves a 30% risk of a frost on them, after April 27 20%, and after May 2 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 26 in half of years, as early as October 13 one year in ten, and holds off past November 6 one year in ten. A hard freeze of 28°F follows 9 days later, around November 4; in spring the one-in-ten date for 28°F is April 20, 12 days before the 32°F one. The freeze-free season lasts 193 days in a typical year, shorter than at 74% of the 144 Tennessee stations; it reaches 214 days one year in ten and falls short of 170 one year in ten. On average 105 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 April 27, and return around October 17. Severe cold of 16°F or below comes in 99% of winters, usually between December 11 and February 17.

July is the warmest month at Montgomery Bell Sp, TN, averaging 85°F by day and 67°F at night; January is the coldest at 47°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 83% of years and May still brings one in 13% of years.

Warmth for growing adds up to 4,006 growing degree days a year (base 50°F), fewer than at 82% of the 144 Tennessee stations. 38% of them (1,529) have built up by the end of June, and July adds the most, 807.

The nearest other station, Dickson, TN, 6 miles west of Burns and 180 feet higher, has a last frost 3 days earlier (April 13), a first frost 1 day earlier (October 25), a season 2 days longer.

The first measurable snow (0.1 inch or more) in Burns usually arrives around January 17, and the last of the season around February 16. Those are the middle dates across the winters of 1991–2020 at Centerville 4NE, TN, 16.7 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 59 days after the last snow.

ZIP 37029 is 4 miles from Montgomery Bell Sp, TN, which stands at 600 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 37187 (White Bluff). The 2023 USDA Plant Hardiness Zone Map lists ZIP 37029 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.