USDA Hardiness Zone 7a
Frost Dates for 38562 — Gainesboro, Tennessee
NOAA 1991–2020 normals from Gainesboro, TN (487 ft), 1 miles north.
Updated
In Gainesboro, the last spring frost (32°F) is around April 20 in half of years and has passed by May 6 in nine years out of ten. The first fall frost comes around October 22, as early as October 8 one year in ten, leaving a typical freeze-free season of 183 days (NOAA, Gainesboro, TN).
- Last spring frost
- April 20
- First fall frost
- October 22
- Growing season
- 183 days
- Hardiness zone
- 7a
50% probability
50% probability
freeze-free, 50%
0 to 5°F (-17.8 to -15.0°C) coldest night
- First snow
- January 13
- Last snow
- February 16
- Winters with snow
- 61%
- Snow per year
- 4.6"
median, 1991–2020
median, 1991–2020
14 of 23 observed
NOAA normal
Frost risk by date in Gainesboro
Half of springs at Gainesboro, TN see their last 32°F night by April 20; only one in ten is past it by April 7, and one in ten still has one after May 6. Planting tender crops after April 27 leaves a 30% risk of a frost on them, after April 30 20%, and after May 6 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 22 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 30; in spring the one-in-ten date for 28°F is April 23, 13 days before the 32°F one. The freeze-free season lasts 183 days in a typical year, shorter than at 92% of the 144 Tennessee stations; it reaches 201 days one year in ten and falls short of 163 one year in ten. On average 104 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 10 days longer, to about April 30, and return around October 12. Severe cold of 16°F or below comes every winter, usually between December 3 and March 1.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 17 | Apr 22 | Apr 25 | Apr 28 | Apr 30 | May 3 | May 6 | May 10 | May 15 |
| 32°F | Apr 7 | Apr 11 | Apr 15 | Apr 18 | Apr 20 | Apr 24 | Apr 27 | Apr 30 | May 6 |
| 28°F | Mar 24 | Mar 31 | Apr 2 | Apr 5 | Apr 8 | Apr 10 | Apr 14 | Apr 17 | Apr 23 |
| 24°F | Mar 6 | Mar 15 | Mar 19 | Mar 24 | Mar 28 | Mar 31 | Apr 2 | Apr 6 | Apr 11 |
| 20°F | Feb 22 | Feb 28 | Mar 6 | Mar 10 | Mar 14 | Mar 18 | Mar 22 | Mar 27 | Apr 1 |
| 16°F | Feb 4 | Feb 12 | Feb 19 | Feb 25 | Mar 1 | Mar 5 | Mar 10 | Mar 15 | Mar 22 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 30 | Oct 5 | Oct 8 | Oct 10 | Oct 12 | Oct 14 | Oct 17 | Oct 21 | Oct 25 |
| 32°F | Oct 8 | Oct 13 | Oct 16 | Oct 19 | Oct 22 | Oct 24 | Oct 27 | Oct 30 | Nov 3 |
| 28°F | Oct 17 | Oct 22 | Oct 25 | Oct 27 | Oct 30 | Nov 1 | Nov 3 | Nov 6 | Nov 11 |
| 24°F | Oct 27 | Nov 1 | Nov 3 | Nov 6 | Nov 9 | Nov 11 | Nov 15 | Nov 18 | Nov 25 |
| 20°F | Nov 6 | Nov 11 | Nov 14 | Nov 18 | Nov 22 | Nov 25 | Nov 29 | Dec 2 | Dec 8 |
| 16°F | Nov 16 | Nov 23 | Nov 27 | Dec 1 | Dec 3 | Dec 6 | Dec 11 | Dec 18 | Dec 25 |
Freeze probabilities 1991–2020 at Gainesboro, 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 38562 →Compare Gainesboro with another place →
Weather by month in Gainesboro
July is the warmest month at Gainesboro, TN, averaging 90°F by day and 65°F at night; January is the coldest at 47°F and 24°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 19% of years.
Warmth for growing adds up to 4,247 growing degree days a year (base 50°F), fewer than at 69% of the 144 Tennessee stations. 38% of them (1,605) have built up by the end of June, and July adds the most, 849. Precipitation totals 56.7 inches a year, most in December (5.8") and least in September (3.4"); 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 | 24 | 4.8 | 100% | 24 | 16 |
| Feb | 53 | 27 | 5.0 | 100% | 20 | 26 |
| Mar | 62 | 33 | 5.3 | 100% | 15 | 93 |
| Apr | 73 | 41 | 4.7 | 96% | 5 | 254 |
| May | 81 | 52 | 5.5 | 19% | <1 | 500 |
| Jun | 87 | 60 | 5.5 | 0% | 0 | 715 |
| Jul | 90 | 65 | 5.0 | 0% | 0 | 849 |
| Aug | 90 | 63 | 4.1 | 0% | 0 | 818 |
| Sep | 84 | 56 | 3.4 | 2% | 0 | 593 |
| Oct | 74 | 43 | 3.7 | 85% | 3 | 288 |
| Nov | 61 | 33 | 3.9 | 100% | 15 | 71 |
| Dec | 51 | 27 | 5.8 | 100% | 22 | 23 |
Monthly normals 1991–2020 at Gainesboro, TN (487 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, Carthage, TN, 18 miles southwest of Gainesboro, has a last frost 10 days earlier (April 10), a first frost 7 days later (October 29), a season 18 days longer.
When it snows in Gainesboro, Tennessee
The first measurable snow (0.1 inch or more) in Gainesboro usually arrives around January 13, and the last of the season around February 16. Those are the middle dates across the winters of 1991–2020 at Gainesboro, TN, 1 miles away: half of years saw snow earlier, half later. Snow fell in 61% of those winters. The last 32°F night of spring typically comes 63 days after the last snow.
Planting calendar for 38562
| When | What to do |
|---|---|
| February 9 – February 23 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 23 – March 9 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 23 – April 6 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 20 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 30 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 8 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 22 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 38562 is 1 mile from Gainesboro, TN, which stands at 487 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 38562 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°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.