USDA Hardiness Zone 7b
Frost Dates for 38059 — Newbern, Tennessee
NOAA 1991–2020 normals from Dyersburg Iii Golf, TN (300 ft), 12 miles southwest.
Updated
In Newbern, the last spring frost (32°F) is around March 28 in half of years and has passed by April 15 in nine years out of ten. The first fall frost comes around November 2, as early as October 20 one year in ten, leaving a typical freeze-free season of 221 days (NOAA, Dyersburg Iii Golf, TN).
- Last spring frost
- March 28
- First fall frost
- November 2
- Growing season
- 221 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 10
- Last snow
- February 10
- Winters with snow
- 65%
- Snow per year
- —
median, 1991–2020
median, 1991–2020
15 of 23 observed
NOAA normal
Frost risk by date in Newbern
Half of springs at Dyersburg Iii Golf, TN see their last 32°F night by March 28; only one in ten is past it by March 10, and one in ten still has one after April 15. Planting tender crops after April 3 leaves a 30% risk of a frost on them, after April 8 20%, and after April 15 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 2 in half of years, as early as October 20 one year in ten, and holds off past November 18 one year in ten. A hard freeze of 28°F follows 11 days later, around November 13; in spring the one-in-ten date for 28°F is April 3, 12 days before the 32°F one. The freeze-free season lasts 221 days in a typical year, longer than at 92% of the 144 Tennessee stations; it reaches 243 days one year in ten and falls short of 200 one year in ten. On average 69 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 8, and return around October 25. Severe cold of 16°F or below comes in 92% of winters, usually between January 1 and February 5.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 23 | Mar 29 | Apr 1 | Apr 5 | Apr 8 | Apr 11 | Apr 14 | Apr 18 | Apr 23 |
| 32°F | Mar 10 | Mar 16 | Mar 20 | Mar 24 | Mar 28 | Mar 31 | Apr 3 | Apr 8 | Apr 15 |
| 28°F | Feb 25 | Mar 1 | Mar 5 | Mar 10 | Mar 14 | Mar 17 | Mar 22 | Mar 28 | Apr 3 |
| 24°F | Feb 11 | Feb 19 | Feb 24 | Feb 27 | Mar 2 | Mar 5 | Mar 9 | Mar 14 | Mar 21 |
| 20°F99% of yrs | Jan 25 | Feb 3 | Feb 8 | Feb 15 | Feb 19 | Feb 24 | Feb 28 | Mar 3 | Mar 10 |
| 16°F92% of yrs | Jan 8 | Jan 19 | Jan 28 | Jan 31 | Feb 5 | Feb 11 | Feb 17 | Feb 24 | Mar 1 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 12 | Oct 17 | Oct 20 | Oct 22 | Oct 25 | Oct 27 | Oct 30 | Nov 1 | Nov 5 |
| 32°F | Oct 20 | Oct 25 | Oct 29 | Oct 31 | Nov 2 | Nov 5 | Nov 8 | Nov 12 | Nov 18 |
| 28°F | Nov 1 | Nov 4 | Nov 7 | Nov 10 | Nov 13 | Nov 17 | Nov 21 | Nov 26 | Dec 2 |
| 24°F | Nov 8 | Nov 14 | Nov 18 | Nov 22 | Nov 27 | Dec 1 | Dec 6 | Dec 14 | Dec 24 |
| 20°F99% of yrs | Nov 17 | Nov 27 | Dec 2 | Dec 7 | Dec 14 | Dec 21 | Dec 28 | Jan 3 | Jan 13 |
| 16°F92% of yrs | Dec 3 | Dec 11 | Dec 21 | Dec 28 | Jan 1 | Jan 5 | Jan 12 | Jan 18 | Jan 27 |
Freeze probabilities 1991–2020 at Dyersburg Iii Golf, 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 38059 →Compare Newbern with another place →
Weather by month in Newbern
July is the warmest month at Dyersburg Iii Golf, TN, averaging 90°F by day and 71°F at night; January is the coldest at 47°F and 29°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 39% of years.
Warmth for growing adds up to 4,948 growing degree days a year (base 50°F), more than at 90% of the 144 Tennessee stations. 39% of them (1,945) have built up by the end of June, and July adds the most, 942. Precipitation totals 53.4 inches a year, most in March (5.9") and least in September (2.6"); May to September bring 38% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 47 | 29 | 3.8 | 100% | 20 | 21 |
| Feb | 52 | 32 | 4.6 | 100% | 14 | 33 |
| Mar | 61 | 40 | 5.9 | 95% | 7 | 136 |
| Apr | 71 | 49 | 5.1 | 39% | 1 | 318 |
| May | 80 | 60 | 5.4 | 0% | 0 | 608 |
| Jun | 88 | 68 | 4.5 | 0% | 0 | 829 |
| Jul | 90 | 71 | 4.3 | 0% | 0 | 942 |
| Aug | 90 | 69 | 3.3 | 0% | 0 | 899 |
| Sep | 84 | 61 | 2.6 | 0% | 0 | 675 |
| Oct | 73 | 49 | 4.2 | 41% | 1 | 352 |
| Nov | 60 | 38 | 4.5 | 97% | 9 | 103 |
| Dec | 50 | 33 | 5.2 | 100% | 17 | 33 |
Monthly normals 1991–2020 at Dyersburg Iii Golf, TN (300 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, Dyersburg, TN, 12 miles southwest of Newbern, has a last frost 3 days later (March 31), a first frost 4 days later (November 6), a season 3 days longer.
When it snows in Newbern, Tennessee
The first measurable snow (0.1 inch or more) in Newbern usually arrives around January 10, and the last of the season around February 10. Those are the middle dates across the winters of 1991–2020 at Dyersburg Iii Golf, TN, 11.8 miles away: half of years saw snow earlier, half later. Snow fell in 65% of those winters. The last 32°F night of spring typically comes 46 days after the last snow.
Planting calendar for 38059
| When | What to do |
|---|---|
| January 17 – January 31 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 31 – February 14 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 28 – March 14 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 28 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 10 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 19 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 2 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 38059 is 12 miles from Dyersburg Iii Golf, TN, which stands at 300 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 38024 (Dyersburg). The 2023 USDA Plant Hardiness Zone Map lists ZIP 38059 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.