USDA Hardiness Zone 8b
Frost Dates for 75551 — Atlanta, Texas
NOAA 1991–2020 normals from Atlanta, TX (315 ft), under a mile northeast.
Updated
In Atlanta, the last spring frost (32°F) is around March 19 in half of years and has passed by April 6 in nine years out of ten. The first fall frost comes around November 11, as early as October 28 one year in ten, leaving a typical freeze-free season of 237 days (NOAA, Atlanta, TX).
- Last spring frost
- March 19
- First fall frost
- November 11
- Growing season
- 237 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
- 35%
- Snow per year
- 0.9"
median, 1991–2020
median, 1991–2020
9 of 26 observed
NOAA normal
Frost risk by date in Atlanta
Half of springs at Atlanta, TX see their last 32°F night by March 19; only one in ten is past it by February 26, and one in ten still has one after April 6. Planting tender crops after March 27 leaves a 30% risk of a frost on them, after April 1 20%, and after April 6 10%. The 18 days between the even-odds date and the one-in-ten date is narrower than at 75% of the 339 Texas stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 11 in half of years, as early as October 28 one year in ten, and holds off past December 1 one year in ten. A hard freeze of 28°F follows 14 days later, around November 25; in spring the one-in-ten date for 28°F is March 23, 14 days before the 32°F one. The freeze-free season lasts 237 days in a typical year, shorter than at 66% of the 339 Texas stations; it reaches 262 days one year in ten and falls short of 212 one year in ten. On average 54 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 3, and return around November 1. Nights of 24°F, cold enough to damage hardier plants, come in 99% of winters and 16°F in 48%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 14 | Mar 22 | Mar 26 | Mar 31 | Apr 3 | Apr 6 | Apr 10 | Apr 14 | Apr 20 |
| 32°F | Feb 26 | Mar 4 | Mar 10 | Mar 15 | Mar 19 | Mar 23 | Mar 27 | Apr 1 | Apr 6 |
| 28°F | Feb 9 | Feb 19 | Feb 26 | Mar 1 | Mar 5 | Mar 9 | Mar 13 | Mar 17 | Mar 23 |
| 24°F99% of yrs | Jan 19 | Jan 29 | Feb 3 | Feb 9 | Feb 16 | Feb 24 | Mar 1 | Mar 6 | Mar 12 |
| 20°F87% of yrs | Dec 31 | Jan 11 | Jan 20 | Jan 26 | Jan 31 | Feb 4 | Feb 10 | Feb 18 | Mar 2 |
| 16°F48% of yrs | too rare for a date | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 20 | Oct 24 | Oct 28 | Oct 31 | Nov 1 | Nov 4 | Nov 8 | Nov 12 | Nov 18 |
| 32°F | Oct 28 | Nov 1 | Nov 4 | Nov 7 | Nov 11 | Nov 16 | Nov 20 | Nov 26 | Dec 1 |
| 28°F | Nov 5 | Nov 11 | Nov 15 | Nov 20 | Nov 25 | Nov 30 | Dec 3 | Dec 8 | Dec 18 |
| 24°F99% of yrs | Nov 19 | Nov 25 | Dec 1 | Dec 5 | Dec 11 | Dec 18 | Dec 25 | Jan 1 | Jan 8 |
| 20°F87% of yrs | Dec 3 | Dec 15 | Dec 22 | Dec 28 | Jan 1 | Jan 5 | Jan 11 | Jan 16 | Feb 1 |
| 16°F48% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Atlanta, TX, 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 75551 →Compare Atlanta with another place →
Weather by month in Atlanta
July is the warmest month at Atlanta, TX, averaging 94°F by day and 72°F at night; January is the coldest at 56°F and 33°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 82% of years and April still brings one in 22% of years.
Warmth for growing adds up to 5,919 growing degree days a year (base 50°F), fewer than at 75% of the 351 Texas stations. 40% of them (2,359) have built up by the end of June, and July adds the most, 1,024. Precipitation totals 50.5 inches a year, most in May (5.2") and least in August (3.1"); May to September bring 38% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 56 | 33 | 4.1 | 100% | 17 | 58 |
| Feb | 60 | 37 | 4.7 | 99% | 11 | 94 |
| Mar | 69 | 43 | 4.5 | 82% | 5 | 237 |
| Apr | 76 | 51 | 4.5 | 22% | 1 | 407 |
| May | 83 | 60 | 5.2 | 0% | 0 | 676 |
| Jun | 91 | 69 | 3.9 | 0% | 0 | 888 |
| Jul | 94 | 72 | 3.3 | 0% | 0 | 1024 |
| Aug | 95 | 71 | 3.1 | 0% | 0 | 1018 |
| Sep | 88 | 64 | 3.9 | 0% | 0 | 786 |
| Oct | 78 | 52 | 4.4 | 17% | <1 | 468 |
| Nov | 66 | 42 | 4.1 | 84% | 6 | 186 |
| Dec | 58 | 36 | 4.8 | 100% | 15 | 79 |
Monthly normals 1991–2020 at Atlanta, TX (315 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, Wright Patman Dm & Lk, TX, 13 miles north of Atlanta, has a last frost 15 days earlier (March 4), a first frost 10 days later (November 21), a season 24 days longer.
When it snows in Atlanta, Texas
Measurable snow is rare here: only 9 of 26 winters from 1991 to 2020 recorded 0.1 inch or more at Atlanta, TX, 0.8 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 75551
| When | What to do |
|---|---|
| January 8 – January 22 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 22 – February 5 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 19 – March 5 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 19 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 19 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 28 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 11 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 75551 is under a mile from Atlanta, TX, which stands at 315 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 75551 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.