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USDA Hardiness Zone 7b

Frost Dates for 38462 — Hohenwald, Tennessee

NOAA 1991–2020 normals from Hohenwald, TN (980 ft), 2 miles north.

Updated

In Hohenwald, the last spring frost (32°F) is around April 5 in half of years and has passed by April 23 in nine years out of ten. The first fall frost comes around November 1, as early as October 18 one year in ten, leaving a typical freeze-free season of 210 days (NOAA, Hohenwald, TN).

Last spring frost
April 5

50% probability

First fall frost
November 1

50% probability

Growing season
210 days

freeze-free, 50%

Hardiness zone
7b

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

First snow
Rare

median, 1991–2020

Last snow
Rare

median, 1991–2020

Winters with snow
43%

9 of 21 observed

Snow per year
2.1"

NOAA normal

Frost risk by date in Hohenwald

Half of springs at Hohenwald, TN see their last 32°F night by April 5; only one in ten is past it by March 19, and one in ten still has one after April 23. Planting tender crops after April 12 leaves a 30% risk of a frost on them, after April 16 20%, and after April 23 10%. The 18 days between the even-odds date and the one-in-ten date is wider than at 67% of the 144 Tennessee stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 1 in half of years, as early as October 18 one year in ten, and holds off past November 16 one year in ten. A hard freeze of 28°F follows 9 days later, around November 10; in spring the one-in-ten date for 28°F is April 10, 13 days before the 32°F one. The freeze-free season lasts 210 days in a typical year, longer than at 69% of the 144 Tennessee stations; it reaches 233 days one year in ten and falls short of 187 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 11 days longer, to about April 16, and return around October 22. Severe cold of 16°F or below comes every winter, usually between December 21 and February 19.

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

Freeze probabilities 1991–2020 at Hohenwald, 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 38462 →Compare Hohenwald with another place →

Weather by month in Hohenwald

July is the warmest month at Hohenwald, TN, averaging 87°F by day and 68°F at night; January is the coldest at 48°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 63% of years.

Warmth for growing adds up to 4,430 growing degree days a year (base 50°F), fewer than at 53% of the 144 Tennessee stations. 38% of them (1,698) have built up by the end of June, and July adds the most, 843. Precipitation totals 57.0 inches a year, most in December (5.7") and least in September (3.8"); May to September bring 41% of it.

Monthly normals 1991–2020 at Hohenwald, TN
MonthHigh °FLow °FPrecip. in32°F nightNights ≤ 32°FGDD 50°F
Jan48284.4100%2123
Feb52314.6100%1735
Mar60395.498%9120
Apr71475.663%2290
May77565.52%<1514
Jun84644.80%0717
Jul87684.90%0843
Aug87664.10%0828
Sep81593.80%0608
Oct72484.250%1325
Nov59384.099%896
Dec50325.7100%1833

Monthly normals 1991–2020 at Hohenwald, TN (980 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, Centerville Water Pl, TN, 17 miles northeast of Hohenwald and 320 feet lower, has a last frost 6 days later (April 11), a first frost 8 days earlier (October 24), a season 14 days shorter.

Frost dates for 37033 (Centerville) →

When it snows in Hohenwald, Tennessee

Measurable snow is rare here: only 9 of 21 winters from 1991 to 2020 recorded 0.1 inch or more at Linden Wtp, TN, 17.1 miles away, so there is no typical first-snow date to plan around.

Planting calendar for 38462

What to do and when, from the 50% frost dates for Hohenwald, Tennessee
WhenWhat to do
January 25 – February 8Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out.
February 8 – February 22Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early.
March 8 – March 22Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil.
April 5 onwardTransplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast.
by August 9Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops.
by October 18Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation.
November 1 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 38462 is 2 miles from Hohenwald, TN, which stands at 980 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 38462 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.

Other zone 7b places in Tennessee