USDA Hardiness Zone 8b
Frost Dates for 39840 — Cuthbert, Georgia
NOAA 1991–2020 normals from Cuthbert, GA (461 ft), 3 miles west.
Updated
In Cuthbert, the last spring frost (32°F) is around March 21 in half of years and has passed by April 7 in nine years out of ten. The first fall frost comes around November 13, as early as October 30 one year in ten, leaving a typical freeze-free season of 236 days (NOAA, Cuthbert, GA).
- Last spring frost
- March 21
- First fall frost
- November 13
- Growing season
- 236 days
- Hardiness zone
- 8b
50% probability
50% probability
freeze-free, 50%
15 to 20°F (-9.4 to -6.7°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 21%
- Snow per year
- 0.3"
median, 1991–2020
median, 1991–2020
5 of 24 observed
NOAA normal
Frost risk by date in Cuthbert
Half of springs at Cuthbert, GA see their last 32°F night by March 21; only one in ten is past it by February 28, and one in ten still has one after April 7. Planting tender crops after March 29 leaves a 30% risk of a frost on them, after April 2 20%, and after April 7 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 56% of the 127 Georgia stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 13 in half of years, as early as October 30 one year in ten, and holds off past December 3 one year in ten. A hard freeze of 28°F follows 14 days later, around November 27; in spring the one-in-ten date for 28°F is March 28, 10 days before the 32°F one. The freeze-free season lasts 236 days in a typical year, longer than at 51% of the 127 Georgia stations; it reaches 262 days one year in ten and falls short of 212 one year in ten. On average 37 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 3, and return around November 3. Nights of 24°F, cold enough to damage hardier plants, come in 99% of winters and 16°F in 61%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 16 | Mar 23 | Mar 28 | Mar 31 | Apr 3 | Apr 5 | Apr 8 | Apr 13 | Apr 18 |
| 32°F | Feb 28 | Mar 8 | Mar 14 | Mar 18 | Mar 21 | Mar 25 | Mar 29 | Apr 2 | Apr 7 |
| 28°F | Feb 14 | Feb 24 | Feb 28 | Mar 5 | Mar 9 | Mar 13 | Mar 18 | Mar 22 | Mar 28 |
| 24°F99% of yrs | Jan 27 | Feb 4 | Feb 13 | Feb 19 | Feb 24 | Feb 28 | Mar 5 | Mar 10 | Mar 17 |
| 20°F90% of yrs | Jan 3 | Jan 14 | Jan 26 | Feb 1 | Feb 7 | Feb 13 | Feb 20 | Feb 28 | Mar 7 |
| 16°F61% of yrs | Dec 30 | Jan 9 | Jan 17 | Jan 22 | Jan 30 | Feb 2 | Feb 7 | Feb 17 | Feb 27 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 22 | Oct 26 | Oct 30 | Nov 1 | Nov 3 | Nov 6 | Nov 9 | Nov 13 | Nov 19 |
| 32°F | Oct 30 | Nov 2 | Nov 6 | Nov 10 | Nov 13 | Nov 16 | Nov 20 | Nov 26 | Dec 3 |
| 28°F | Nov 5 | Nov 12 | Nov 16 | Nov 21 | Nov 27 | Dec 1 | Dec 4 | Dec 10 | Dec 21 |
| 24°F99% of yrs | Nov 16 | Nov 25 | Dec 1 | Dec 5 | Dec 12 | Dec 21 | Dec 29 | Jan 3 | Jan 13 |
| 20°F90% of yrs | Dec 2 | Dec 12 | Dec 22 | Dec 29 | Jan 2 | Jan 8 | Jan 15 | Jan 26 | Feb 2 |
| 16°F61% of yrs | Dec 17 | Dec 28 | Jan 3 | Jan 10 | Jan 16 | Jan 22 | Jan 30 | Feb 4 | Feb 14 |
Freeze probabilities 1991–2020 at Cuthbert, GA, 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 39840 →Compare Cuthbert with another place →
Weather by month in Cuthbert
July is the warmest month at Cuthbert, GA, averaging 92°F by day and 70°F at night; January is the coldest at 60°F and 35°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 88% of years and April still brings one in 22% of years.
Warmth for growing adds up to 5,862 growing degree days a year (base 50°F), more than at 63% of the 127 Georgia stations. 41% of them (2,381) have built up by the end of June, and July adds the most, 950. Precipitation totals 55.6 inches a year, most in July (7.3") and least in May (2.3"); May to September bring 43% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 60 | 35 | 4.9 | 100% | 12 | 80 |
| Feb | 64 | 37 | 5.5 | 99% | 8 | 107 |
| Mar | 71 | 43 | 4.8 | 88% | 3 | 247 |
| Apr | 78 | 50 | 4.9 | 22% | <1 | 419 |
| May | 85 | 59 | 2.3 | 0% | 0 | 679 |
| Jun | 90 | 67 | 5.2 | 0% | 0 | 849 |
| Jul | 92 | 70 | 7.3 | 0% | 0 | 950 |
| Aug | 91 | 69 | 5.3 | 0% | 0 | 930 |
| Sep | 87 | 65 | 4.0 | 0% | 0 | 777 |
| Oct | 79 | 54 | 2.3 | 13% | <1 | 504 |
| Nov | 69 | 43 | 3.6 | 83% | 3 | 215 |
| Dec | 62 | 37 | 5.5 | 100% | 10 | 105 |
Monthly normals 1991–2020 at Cuthbert, GA (461 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, Lumpkin 2 SE, GA, 18 miles north of Cuthbert, has a last frost 11 days later (April 1), a first frost 9 days earlier (November 4), a season 19 days shorter.
When it snows in Cuthbert, Georgia
Measurable snow is rare here: only 5 of 24 winters from 1991 to 2020 recorded 0.1 inch or more at Cuthbert, GA, 2.5 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 39840
| When | What to do |
|---|---|
| January 10 – January 24 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 24 – February 7 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 21 – March 7 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 21 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 21 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 30 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 13 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 39840 is 3 miles from Cuthbert, GA, which stands at 461 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 39840 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°C) over 1991–2020; a zone describes winter lows, not frost dates.
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.