USDA Hardiness Zone 7b
Frost Dates for 37075 — Hendersonville, Tennessee
NOAA 1991–2020 normals from Old Hickory Dam, TN (460 ft), 3 miles southwest.
Updated
In Hendersonville, the last spring frost (32°F) is around April 11 in half of years and has passed by April 26 in nine years out of ten. The first fall frost comes around October 29, as early as October 18 one year in ten, leaving a typical freeze-free season of 200 days (NOAA, Old Hickory Dam, TN).
- Last spring frost
- April 11
- First fall frost
- October 29
- Growing season
- 200 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
- Rare
- Last snow
- Rare
- Winters with snow
- 46%
- Snow per year
- 1.2"
median, 1991–2020
median, 1991–2020
13 of 28 observed
NOAA normal
Frost risk by date in Hendersonville
Half of springs at Old Hickory Dam, TN see their last 32°F night by April 11; 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 18 leaves a 30% risk of a frost on them, after April 22 20%, and after April 26 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 29 in half of years, as early as October 18 one year in ten, and holds off past November 9 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 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 220 days one year in ten and falls short of 182 one year in ten. On average 86 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 24, and return around October 21. Severe cold of 16°F or below comes every winter, usually between December 10 and February 20.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 9 | Apr 14 | Apr 18 | Apr 21 | Apr 24 | Apr 28 | May 1 | May 4 | May 8 |
| 32°F | Mar 26 | Mar 31 | Apr 4 | Apr 8 | Apr 11 | Apr 15 | Apr 18 | Apr 22 | Apr 26 |
| 28°F | Mar 13 | Mar 18 | Mar 22 | Mar 27 | Mar 31 | Apr 2 | Apr 5 | Apr 8 | Apr 14 |
| 24°F | Feb 27 | Mar 4 | Mar 9 | Mar 14 | Mar 18 | Mar 21 | Mar 25 | Mar 30 | Apr 3 |
| 20°F | Feb 9 | Feb 18 | Feb 25 | Feb 28 | Mar 4 | Mar 8 | Mar 13 | Mar 17 | Mar 23 |
| 16°F | Jan 27 | Feb 3 | Feb 9 | Feb 15 | Feb 20 | Feb 26 | Mar 1 | Mar 7 | Mar 15 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 10 | Oct 14 | Oct 16 | Oct 19 | Oct 21 | Oct 23 | Oct 25 | Oct 27 | Oct 30 |
| 32°F | Oct 18 | Oct 22 | Oct 24 | Oct 27 | Oct 29 | Oct 31 | Nov 1 | Nov 5 | Nov 9 |
| 28°F | Oct 27 | Oct 31 | Nov 1 | Nov 4 | Nov 6 | Nov 9 | Nov 12 | Nov 16 | Nov 21 |
| 24°F | Nov 4 | Nov 8 | Nov 11 | Nov 13 | Nov 16 | Nov 19 | Nov 23 | Nov 27 | Dec 2 |
| 20°F | Nov 11 | Nov 15 | Nov 20 | Nov 25 | Nov 29 | Dec 1 | Dec 5 | Dec 10 | Dec 18 |
| 16°F | Nov 20 | Nov 28 | Dec 1 | Dec 5 | Dec 10 | Dec 15 | Dec 22 | Dec 28 | Jan 5 |
Freeze probabilities 1991–2020 at Old Hickory Dam, 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 37075 →Compare Hendersonville with another place →
Frost risk through the year in Hendersonville
In Hendersonville, the spring curve drops under 10% on April 26 and the fall curve passes 10% on October 18, 175 days later; that gap is shorter than at 49% of the 144 Tennessee stations with frost dates. The spring risk falls from 90% to 10% over 31 days (March 26 to April 26) and the fall risk climbs from 10% to 90% over 22 days (October 18 to November 9): the last frost moves more from year to year than the first. At Old Hickory WFO, TN, 5 miles southeast, the same gap runs from April 17 to October 23, 14 days longer.
| Planted on | Another 32°F night | 28°F night |
|---|---|---|
| Mar 28 | 86% | 58% |
| Apr 4 | 70% | 33% |
| Apr 1150% date | 50% | 15% |
| Apr 18 | 30% | under 10% |
| Apr 25 | 13% | under 10% |
| May 2 | under 10% | under 10% |
Weather by month in Hendersonville
August is the warmest month at Old Hickory Dam, TN, averaging 90°F by day and 67°F at night; January is the coldest at 47°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 4,508 growing degree days a year (base 50°F), more than at 56% of the 144 Tennessee stations. 37% of them (1,684) have built up by the end of June, and August adds the most, 886. Precipitation totals 48.0 inches a year, most in April (4.7") and least in October (3.3"); May to September bring 41% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 47 | 27 | 3.7 | 100% | 23 | 12 |
| Feb | 51 | 30 | 4.3 | 100% | 17 | 24 |
| Mar | 61 | 37 | 4.6 | 100% | 11 | 100 |
| Apr | 71 | 45 | 4.7 | 79% | 2 | 270 |
| May | 79 | 55 | 4.6 | 5% | 0 | 525 |
| Jun | 86 | 64 | 3.8 | 0% | 0 | 753 |
| Jul | 90 | 67 | 4.1 | 0% | 0 | 882 |
| Aug | 90 | 67 | 3.4 | 0% | 0 | 886 |
| Sep | 83 | 60 | 3.7 | 0% | 0 | 648 |
| Oct | 72 | 47 | 3.3 | 64% | 1 | 314 |
| Nov | 60 | 36 | 3.4 | 100% | 15 | 75 |
| Dec | 50 | 29 | 4.4 | 100% | 18 | 19 |
Monthly normals 1991–2020 at Old Hickory Dam, TN (460 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, Old Hickory WFO, TN, 5 miles southeast of Hendersonville, has a last frost 10 days earlier (April 1), a first frost 6 days later (November 4), a season 16 days longer.
When it snows in Hendersonville, Tennessee
Measurable snow is rare here: only 13 of 28 winters from 1991 to 2020 recorded 0.1 inch or more at Old Hickory Dam, TN, 2.7 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 37075
| When | What to do |
|---|---|
| January 31 – February 14 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 14 – February 28 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 14 – March 28 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 11 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 37075 is 3 miles from Old Hickory Dam, TN, which stands at 460 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 37075 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.