USDA Hardiness Zone 8b
Frost Dates for 75232 — Dallas, Texas
NOAA 1991–2020 normals from Dallas Redbird Airport, TX (658 ft), 2 miles northwest.
Updated
In Dallas, the last spring frost (32°F) is around March 6 in half of years and has passed by March 26 in nine years out of ten. The first fall frost comes around November 25, as early as November 6 one year in ten, leaving a typical freeze-free season of 265 days (NOAA, Dallas Redbird Airport, TX).
- Last spring frost
- March 6
- First fall frost
- November 25
- Growing season
- 265 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
- 0%
- Snow per year
- —
median, 1991–2020
median, 1991–2020
0 of 20 observed
NOAA normal
Frost risk by date in Dallas
Half of springs at Dallas Redbird Airport, TX see their last 32°F night by March 6; only one in ten is past it by February 15, and one in ten still has one after March 26. Planting tender crops after March 14 leaves a 30% risk of a frost on them, after March 19 20%, and after March 26 10%. The 20 days between the even-odds date and the one-in-ten date is narrower than at 51% of the 339 Texas stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 25 in half of years, as early as November 6 one year in ten, and holds off past December 14 one year in ten. A hard freeze of 28°F follows 14 days later, around December 9; in spring the one-in-ten date for 28°F is March 12, 14 days before the 32°F one. The freeze-free season lasts 265 days in a typical year, longer than at 69% of the 339 Texas stations; it reaches 291 days one year in ten and falls short of 239 one year in ten. On average 27 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 March 19, and return around November 12. Nights of 24°F, cold enough to damage hardier plants, come in 91% of winters and 16°F in 27%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Feb 28 | Mar 6 | Mar 11 | Mar 15 | Mar 19 | Mar 23 | Mar 28 | Apr 1 | Apr 9 |
| 32°F | Feb 15 | Feb 23 | Feb 28 | Mar 3 | Mar 6 | Mar 10 | Mar 14 | Mar 19 | Mar 26 |
| 28°F | Jan 24 | Feb 1 | Feb 8 | Feb 15 | Feb 22 | Feb 27 | Mar 2 | Mar 6 | Mar 12 |
| 24°F91% of yrs | Jan 1 | Jan 12 | Jan 20 | Jan 28 | Feb 2 | Feb 7 | Feb 15 | Feb 24 | Mar 3 |
| 20°F61% of yrs | Dec 22 | Dec 31 | Jan 6 | Jan 14 | Jan 18 | Jan 25 | Jan 31 | Feb 9 | Feb 20 |
| 16°F27% of yrs | too rare for a date | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 27 | Nov 1 | Nov 5 | Nov 8 | Nov 12 | Nov 16 | Nov 20 | Nov 25 | Dec 1 |
| 32°F | Nov 6 | Nov 12 | Nov 16 | Nov 21 | Nov 25 | Nov 29 | Dec 3 | Dec 7 | Dec 14 |
| 28°F | Nov 19 | Nov 26 | Dec 1 | Dec 4 | Dec 9 | Dec 13 | Dec 20 | Dec 27 | Jan 5 |
| 24°F91% of yrs | Dec 2 | Dec 8 | Dec 15 | Dec 22 | Dec 27 | Jan 2 | Jan 9 | Jan 16 | Feb 1 |
| 20°F61% of yrs | Dec 10 | Dec 18 | Dec 24 | Dec 31 | Jan 5 | Jan 11 | Jan 16 | Jan 26 | Feb 5 |
| 16°F27% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Dallas Redbird Airport, 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 75232 →Compare Dallas with another place →
Weather by month in Dallas
August is the warmest month at Dallas Redbird Airport, TX, averaging 96°F by day and 75°F at night; January is the coldest at 57°F and 38°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From April to October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 66% of years.
Warmth for growing adds up to 6,686 growing degree days a year (base 50°F), more than at 61% of the 351 Texas stations. 40% of them (2,687) have built up by the end of June, and August adds the most, 1,106. Precipitation totals 37.8 inches a year, most in October (4.5") and least in August (1.8"); May to September bring 39% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 57 | 38 | 2.6 | 99% | 10 | 89 |
| Feb | 62 | 41 | 2.6 | 92% | 6 | 135 |
| Mar | 69 | 48 | 3.6 | 66% | 2 | 297 |
| Apr | 76 | 55 | 3.7 | 3% | 0 | 474 |
| May | 84 | 64 | 4.3 | 0% | 0 | 741 |
| Jun | 91 | 72 | 3.9 | 0% | 0 | 951 |
| Jul | 96 | 75 | 1.9 | 0% | 0 | 1105 |
| Aug | 96 | 75 | 1.8 | 0% | 0 | 1106 |
| Sep | 89 | 68 | 3.0 | 0% | 0 | 862 |
| Oct | 79 | 58 | 4.5 | 4% | 0 | 565 |
| Nov | 67 | 47 | 2.8 | 62% | 2 | 254 |
| Dec | 59 | 39 | 3.1 | 99% | 8 | 106 |
Monthly normals 1991–2020 at Dallas Redbird Airport, TX (658 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, Joe Pool Lake, TX, 8 miles west of Dallas, has a last frost 14 days later (March 20), a first frost 12 days earlier (November 13), a season 29 days shorter.
When it snows in Dallas, Texas
Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Joe Pool Lake, TX, 8.1 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 75232
| When | What to do |
|---|---|
| December 26 – January 9 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 9 – January 23 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 6 – February 20 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 6 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by September 2 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by November 11 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 25 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 75232 is 2 miles from Dallas Redbird Airport, TX, which stands at 658 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 14 other ZIP codes share the station; its figures are presented in full for 75217 (Dallas). The 2023 USDA Plant Hardiness Zone Map lists ZIP 75232 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.