USDA Hardiness Zone 7b
Frost Dates for 79245 — Memphis, Texas
NOAA 1991–2020 normals from Memphis, TX (2,090 ft), under a mile north.
Updated
In Memphis, the last spring frost (32°F) is around April 1 in half of years and has passed by April 18 in nine years out of ten. The first fall frost comes around November 3, as early as October 21 one year in ten, leaving a typical freeze-free season of 215 days (NOAA, Memphis, TX).
- Last spring frost
- April 1
- First fall frost
- November 3
- Growing season
- 215 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
- December 22
- Last snow
- February 12
- Winters with snow
- 86%
- Snow per year
- —
median, 1991–2020
median, 1991–2020
24 of 28 observed
NOAA normal
Frost risk by date in Memphis
Half of springs at Memphis, TX see their last 32°F night by April 1; only one in ten is past it by March 13, and one in ten still has one after April 18. Planting tender crops after April 7 leaves a 30% risk of a frost on them, after April 12 20%, and after April 18 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 86% of the 339 Texas stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 3 in half of years, as early as October 21 one year in ten, and holds off past November 17 one year in ten. A hard freeze of 28°F follows 9 days later, around November 12; in spring the one-in-ten date for 28°F is April 6, 12 days before the 32°F one. The freeze-free season lasts 215 days in a typical year, shorter than at 89% of the 339 Texas stations; it reaches 237 days one year in ten and falls short of 194 one year in ten. On average 89 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 11, and return around October 26. Severe cold of 16°F or below comes in 98% of winters, usually between December 15 and February 11.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 28 | Apr 2 | Apr 4 | Apr 8 | Apr 11 | Apr 14 | Apr 18 | Apr 22 | Apr 28 |
| 32°F | Mar 13 | Mar 19 | Mar 24 | Mar 30 | Apr 1 | Apr 4 | Apr 7 | Apr 12 | Apr 18 |
| 28°F | Mar 2 | Mar 6 | Mar 10 | Mar 13 | Mar 17 | Mar 22 | Mar 27 | Apr 1 | Apr 6 |
| 24°F | Feb 19 | Feb 25 | Feb 28 | Mar 3 | Mar 7 | Mar 10 | Mar 14 | Mar 19 | Mar 25 |
| 20°F | Feb 2 | Feb 12 | Feb 17 | Feb 22 | Feb 27 | Mar 1 | Mar 4 | Mar 9 | Mar 15 |
| 16°F98% of yrs | Jan 8 | Jan 22 | Jan 30 | Feb 4 | Feb 11 | Feb 15 | Feb 21 | Feb 28 | Mar 4 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 13 | Oct 18 | Oct 21 | Oct 23 | Oct 26 | Oct 28 | Oct 31 | Nov 3 | Nov 6 |
| 32°F | Oct 21 | Oct 26 | Oct 30 | Nov 1 | Nov 3 | Nov 6 | Nov 8 | Nov 12 | Nov 17 |
| 28°F | Oct 28 | Nov 2 | Nov 5 | Nov 9 | Nov 12 | Nov 16 | Nov 19 | Nov 23 | Nov 28 |
| 24°F | Nov 6 | Nov 12 | Nov 16 | Nov 19 | Nov 22 | Nov 25 | Nov 29 | Dec 3 | Dec 8 |
| 20°F | Nov 15 | Nov 21 | Nov 25 | Nov 29 | Dec 2 | Dec 6 | Dec 10 | Dec 15 | Dec 25 |
| 16°F98% of yrs | Nov 24 | Nov 30 | Dec 4 | Dec 9 | Dec 15 | Dec 20 | Dec 27 | Jan 4 | Jan 13 |
Freeze probabilities 1991–2020 at Memphis, 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 79245 →Compare Memphis with another place →
Weather by month in Memphis
July is the warmest month at Memphis, TX, averaging 96°F by day and 70°F at night; January is the coldest at 53°F and 25°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 53% of years.
Warmth for growing adds up to 5,204 growing degree days a year (base 50°F), fewer than at 90% of the 351 Texas stations. 39% of them (2,010) have built up by the end of June, and July adds the most, 1,018. Precipitation totals 22.3 inches a year, most in May (3.5") and least in January (0.8"); May to September bring 61% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 53 | 25 | 0.8 | 100% | 25 | 15 |
| Feb | 57 | 29 | 0.8 | 100% | 19 | 39 |
| Mar | 67 | 37 | 1.4 | 98% | 9 | 153 |
| Apr | 75 | 46 | 2.0 | 53% | 2 | 333 |
| May | 83 | 56 | 3.5 | 0% | 0 | 609 |
| Jun | 92 | 66 | 2.9 | 0% | 0 | 861 |
| Jul | 96 | 70 | 2.4 | 0% | 0 | 1018 |
| Aug | 95 | 68 | 2.5 | 0% | 0 | 973 |
| Sep | 87 | 60 | 2.4 | 0% | 0 | 702 |
| Oct | 75 | 47 | 1.8 | 35% | 1 | 373 |
| Nov | 64 | 35 | 1.0 | 100% | 11 | 109 |
| Dec | 54 | 27 | 0.8 | 100% | 23 | 19 |
Monthly normals 1991–2020 at Memphis, TX (2,090 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, Wellington, TX, 21 miles northeast of Memphis, has the same 50% last-frost date, a first frost 1 day later (November 4).
When it snows in Memphis, Texas
The first measurable snow (0.1 inch or more) in Memphis usually arrives around December 22, and the last of the season around February 12. Those are the middle dates across the winters of 1991–2020 at Memphis, TX, 0.7 miles away: half of years saw snow earlier, half later. Snow fell in 86% of those winters. The last 32°F night of spring typically comes 48 days after the last snow.
Planting calendar for 79245
| When | What to do |
|---|---|
| January 21 – February 4 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 4 – February 18 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 4 – March 18 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 1 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 11 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 20 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 3 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 79245 is under a mile from Memphis, TX, which stands at 2,090 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 79245 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.
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.