Skip to content

USDA Hardiness Zone 7b

Frost Dates for 37026 — Bradyville, Tennessee

NOAA 1991–2020 normals from Woodbury 1 WNW, TN (750 ft), 10 miles north.

Updated

In Bradyville, the last spring frost (32°F) is around April 17 in half of years and has passed by May 2 in nine years out of ten. The first fall frost comes around October 21, as early as October 8 one year in ten, leaving a typical freeze-free season of 184 days (NOAA, Woodbury 1 WNW, TN).

Last spring frost
April 17

50% probability

First fall frost
October 21

50% probability

Growing season
184 days

freeze-free, 50%

Hardiness zone
7b

5 to 10°F (-15.0 to -12.2°C) coldest night

First snow
January 7

median, 1991–2020

Last snow
February 17

median, 1991–2020

Winters with snow
95%

21 of 22 observed

Snow per year
4.1"

NOAA normal

Frost risk by date in Bradyville

Half of springs at Woodbury 1 WNW, TN see their last 32°F night by April 17; only one in ten is past it by April 3, 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 15 days between the even-odds date and the one-in-ten date is narrower than at 78% of the 144 Tennessee stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 21 in half of years, as early as October 8 one year in ten, and holds off past November 3 one year in ten. A hard freeze of 28°F follows 8 days later, around October 29; in spring the one-in-ten date for 28°F is April 21, 11 days before the 32°F one. The freeze-free season lasts 184 days in a typical year, shorter than at 91% of the 144 Tennessee stations; it reaches 205 days one year in ten and falls short of 163 one year in ten. On average 94 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 30, and return around October 12. Severe cold of 16°F or below comes every winter, usually between December 5 and February 23.

Spring: the chance of another night this cold after the date
Low90%80%70%60%50%40%30%20%10%
36°FApr 15Apr 20Apr 23Apr 27Apr 30May 2May 5May 9May 14
32°FApr 3Apr 8Apr 12Apr 15Apr 17Apr 20Apr 23Apr 27May 2
28°FMar 19Mar 25Mar 30Apr 3Apr 5Apr 9Apr 12Apr 16Apr 21
24°FMar 3Mar 10Mar 16Mar 21Mar 24Mar 28Apr 1Apr 4Apr 11
20°FFeb 13Feb 22Feb 27Mar 3Mar 9Mar 15Mar 19Mar 24Mar 31
16°FJan 26Feb 3Feb 10Feb 17Feb 23Feb 28Mar 4Mar 11Mar 18
Fall: the chance the first night this cold has come by the date
Low10%20%30%40%50%60%70%80%90%
36°FSep 30Oct 4Oct 7Oct 10Oct 12Oct 15Oct 18Oct 21Oct 25
32°FOct 8Oct 12Oct 15Oct 18Oct 21Oct 23Oct 26Oct 29Nov 3
28°FOct 16Oct 21Oct 24Oct 26Oct 29Nov 1Nov 3Nov 6Nov 11
24°FOct 26Oct 30Nov 2Nov 5Nov 8Nov 12Nov 15Nov 19Nov 26
20°FNov 4Nov 9Nov 14Nov 17Nov 22Nov 26Dec 1Dec 4Dec 13
16°FNov 12Nov 20Nov 27Dec 1Dec 5Dec 11Dec 20Dec 28Jan 5

Freeze probabilities 1991–2020 at Woodbury 1 WNW, TN, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.

Frost risk on any date in 37026 →Compare Bradyville with another place →

Weather by month in Bradyville

July is the warmest month at Woodbury 1 WNW, TN, averaging 90°F by day and 66°F at night; January is the coldest at 50°F and 27°F. A freezing night is all but certain in every month from November to April (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 12% of years.

Warmth for growing adds up to 4,417 growing degree days a year (base 50°F), fewer than at 55% of the 144 Tennessee stations. 38% of them (1,665) have built up by the end of June, and July adds the most, 856. Precipitation totals 57.6 inches a year, most in July (6.3") and least in October (3.3"); May to September bring 42% of it.

Monthly normals 1991–2020 at Woodbury 1 WNW, TN
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan50275.0100%2126
Feb54295.0100%1833
Mar63355.4100%13109
Apr72434.992%4264
May80534.812%<1503
Jun87625.20%0730
Jul90666.30%0856
Aug89643.80%0828
Sep84574.14%<1620
Oct74443.384%4314
Nov63343.9100%1497
Dec53305.9100%1938

Monthly normals 1991–2020 at Woodbury 1 WNW, TN (750 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.

Compared with the next station

The nearest other station, Manchester #2, TN, 13 miles south of Bradyville and 320 feet higher, has a last frost 4 days earlier (April 13), a first frost 3 days later (October 24), a season 8 days longer.

Frost dates for 37355 (Manchester) →

When it snows in Bradyville, Tennessee

The first measurable snow (0.1 inch or more) in Bradyville 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, 18.5 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.

Planting calendar for 37026

What to do and when, from the 50% frost dates for Bradyville, Tennessee
WhenWhat to do
February 6 – February 20Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 20 – March 6Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 20 – April 3Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 17 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by July 29Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 7Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
October 21 onwardPlant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter.

The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.

Where these figures come from

ZIP 37026 is 10 miles from Woodbury 1 WNW, TN, which stands at 750 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 37190 (Woodbury). The 2023 USDA Plant Hardiness Zone Map lists ZIP 37026 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.

Frost dates across Tennessee →

Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.

Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.

ZIP codes measured at the same station

Other zone 7b places in Tennessee