USDA Hardiness Zone 7b
Frost Dates for 37345 — Huntland, Tennessee
NOAA 1991–2020 normals from Winchester 5SE, TN (941 ft), 16 miles northeast.
Updated
In Huntland, the last spring frost (32°F) is around April 6 in half of years and has passed by April 25 in nine years out of ten. The first fall frost comes around October 29, as early as October 16 one year in ten, leaving a typical freeze-free season of 204 days (NOAA, Winchester 5SE, TN).
- Last spring frost
- April 6
- First fall frost
- October 29
- Growing season
- 204 days
- Hardiness zone
- 7b
50% probability
50% probability
freeze-free, 50%
5 to 10°F (-15.0 to -12.2°C) coldest night
- First snow
- January 12
- Last snow
- February 14
- Winters with snow
- 92%
- Snow per year
- 4.1"
median, 1991–2020
median, 1991–2020
22 of 24 observed
NOAA normal
Frost risk by date in Huntland
Half of springs at Winchester 5SE, TN see their last 32°F night by April 6; only one in ten is past it by March 19, and one in ten still has one after April 25. Planting tender crops after April 14 leaves a 30% risk of a frost on them, after April 18 20%, and after April 25 10%. The 19 days between the even-odds date and the one-in-ten date is wider than at 84% of the 144 Tennessee stations behind this site's ZIP pages.
In fall the first 32°F night comes by October 29 in half of years, as early as October 16 one year in ten, and holds off past November 11 one year in ten. A hard freeze of 28°F follows 8 days later, around November 6; in spring the one-in-ten date for 28°F is April 10, 15 days before the 32°F one. The freeze-free season lasts 204 days in a typical year, shorter than at 47% of the 144 Tennessee stations; it reaches 226 days one year in ten and falls short of 182 one year in ten. On average 71 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 15 days longer, to about April 21, and return around October 21. Severe cold of 16°F or below comes in 96% of winters, usually between December 24 and February 10.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 2 | Apr 9 | Apr 13 | Apr 17 | Apr 21 | Apr 24 | Apr 28 | May 3 | May 8 |
| 32°F | Mar 19 | Mar 27 | Mar 31 | Apr 3 | Apr 6 | Apr 10 | Apr 14 | Apr 18 | Apr 25 |
| 28°F | Mar 6 | Mar 13 | Mar 18 | Mar 23 | Mar 26 | Mar 30 | Apr 1 | Apr 5 | Apr 10 |
| 24°F | Feb 20 | Feb 27 | Mar 4 | Mar 7 | Mar 12 | Mar 16 | Mar 21 | Mar 26 | Apr 1 |
| 20°F | Jan 30 | Feb 8 | Feb 15 | Feb 21 | Feb 27 | Mar 3 | Mar 7 | Mar 13 | Mar 21 |
| 16°F96% of yrs | Jan 10 | Jan 20 | Jan 28 | Feb 2 | Feb 10 | Feb 15 | Feb 23 | Feb 28 | Mar 8 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 7 | Oct 12 | Oct 15 | Oct 18 | Oct 21 | Oct 23 | Oct 25 | Oct 28 | Nov 1 |
| 32°F | Oct 16 | Oct 21 | Oct 24 | Oct 26 | Oct 29 | Oct 31 | Nov 3 | Nov 6 | Nov 11 |
| 28°F | Oct 25 | Oct 30 | Nov 1 | Nov 4 | Nov 6 | Nov 9 | Nov 13 | Nov 17 | Nov 24 |
| 24°F | Nov 1 | Nov 6 | Nov 10 | Nov 14 | Nov 17 | Nov 23 | Nov 28 | Dec 3 | Dec 9 |
| 20°F | Nov 11 | Nov 17 | Nov 24 | Nov 29 | Dec 3 | Dec 7 | Dec 13 | Dec 22 | Jan 1 |
| 16°F96% of yrs | Nov 26 | Dec 2 | Dec 9 | Dec 15 | Dec 24 | Dec 30 | Jan 3 | Jan 11 | Jan 21 |
Freeze probabilities 1991–2020 at Winchester 5SE, 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 37345 →Compare Huntland with another place →
Weather by month in Huntland
July is the warmest month at Winchester 5SE, TN, averaging 87°F by day and 68°F at night; January is the coldest at 49°F and 30°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 68% of years.
Warmth for growing adds up to 4,548 growing degree days a year (base 50°F), more than at 60% of the 144 Tennessee stations. 39% of them (1,754) have built up by the end of June, and July adds the most, 856. Precipitation totals 57.9 inches a year, most in March (5.8") and least in October (3.4"); May to September bring 40% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 49 | 30 | 4.8 | 100% | 18 | 28 |
| Feb | 53 | 33 | 5.4 | 100% | 15 | 40 |
| Mar | 61 | 40 | 5.8 | 98% | 9 | 131 |
| Apr | 71 | 47 | 5.1 | 68% | 2 | 294 |
| May | 78 | 56 | 4.8 | 6% | <1 | 531 |
| Jun | 85 | 64 | 5.2 | 0% | 0 | 730 |
| Jul | 87 | 68 | 4.7 | 0% | 0 | 856 |
| Aug | 87 | 66 | 3.9 | 0% | 0 | 829 |
| Sep | 82 | 60 | 4.3 | 0% | 0 | 630 |
| Oct | 72 | 49 | 3.4 | 60% | 2 | 335 |
| Nov | 61 | 38 | 4.7 | 99% | 10 | 102 |
| Dec | 52 | 33 | 5.8 | 100% | 16 | 41 |
Monthly normals 1991–2020 at Winchester 5SE, TN (941 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, Fayetteville Wtp, TN, 16 miles west of Huntland and 199 feet lower, has a last frost 1 day later (April 7), a first frost 1 day earlier (October 28), a season 3 days shorter.
When it snows in Huntland, Tennessee
The first measurable snow (0.1 inch or more) in Huntland usually arrives around January 12, and the last of the season around February 14. Those are the middle dates across the winters of 1991–2020 at Winchester 5SE, TN, 15.5 miles away: half of years saw snow earlier, half later. Snow fell in 92% of those winters. The last 32°F night of spring typically comes 51 days after the last snow.
Planting calendar for 37345
| When | What to do |
|---|---|
| January 26 – February 9 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 9 – February 23 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 9 – March 23 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 6 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 6 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 15 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 29 onward | Plant 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 37345 is 16 miles from Winchester 5SE, TN, which stands at 941 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 37398 (Winchester). The 2023 USDA Plant Hardiness Zone Map lists ZIP 37345 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.