USDA Hardiness Zone 8b
Frost Dates for 75503 — Texarkana, Texas
NOAA 1991–2020 normals from Texarkana, TX (390 ft), 3 miles south.
Updated
In Texarkana, the last spring frost (32°F) is around March 15 in half of years and has passed by April 4 in nine years out of ten. The first fall frost comes around November 17, as early as November 1 one year in ten, leaving a typical freeze-free season of 249 days (NOAA, Texarkana, TX).
- Last spring frost
- March 15
- First fall frost
- November 17
- Growing season
- 249 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
- 22%
- Snow per year
- 0.9"
median, 1991–2020
median, 1991–2020
5 of 23 observed
NOAA normal
Frost risk by date in Texarkana
Half of springs at Texarkana, TX see their last 32°F night by March 15; only one in ten is past it by February 24, and one in ten still has one after April 4. Planting tender crops after March 24 leaves a 30% risk of a frost on them, after March 28 20%, and after April 4 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 17 in half of years, as early as November 1 one year in ten, and holds off past December 4 one year in ten. A hard freeze of 28°F follows 14 days later, around December 1; in spring the one-in-ten date for 28°F is March 21, 14 days before the 32°F one. The freeze-free season lasts 249 days in a typical year, longer than at 50% of the 339 Texas stations; it reaches 274 days one year in ten and falls short of 222 one year in ten. On average 46 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 March 30, and return around November 6. Nights of 24°F, cold enough to damage hardier plants, come in 98% of winters and 16°F in 33%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 8 | Mar 16 | Mar 21 | Mar 25 | Mar 30 | Apr 2 | Apr 6 | Apr 10 | Apr 16 |
| 32°F | Feb 24 | Mar 2 | Mar 7 | Mar 11 | Mar 15 | Mar 19 | Mar 24 | Mar 28 | Apr 4 |
| 28°F | Feb 3 | Feb 13 | Feb 20 | Feb 26 | Mar 1 | Mar 5 | Mar 9 | Mar 14 | Mar 21 |
| 24°F98% of yrs | Jan 14 | Jan 23 | Jan 31 | Feb 4 | Feb 10 | Feb 15 | Feb 23 | Mar 1 | Mar 8 |
| 20°F75% of yrs | Dec 31 | Jan 8 | Jan 15 | Jan 21 | Jan 26 | Jan 31 | Feb 4 | Feb 10 | Feb 25 |
| 16°F33% of yrs | too rare for a date | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 24 | Oct 29 | Nov 1 | Nov 3 | Nov 6 | Nov 9 | Nov 13 | Nov 17 | Nov 23 |
| 32°F | Nov 1 | Nov 5 | Nov 9 | Nov 13 | Nov 17 | Nov 21 | Nov 25 | Dec 1 | Dec 4 |
| 28°F | Nov 10 | Nov 16 | Nov 21 | Nov 26 | Dec 1 | Dec 4 | Dec 8 | Dec 14 | Dec 23 |
| 24°F98% of yrs | Nov 23 | Nov 30 | Dec 5 | Dec 12 | Dec 19 | Dec 25 | Dec 31 | Jan 5 | Jan 14 |
| 20°F75% of yrs | Dec 8 | Dec 20 | Dec 27 | Jan 1 | Jan 5 | Jan 9 | Jan 13 | Jan 20 | Feb 2 |
| 16°F33% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Texarkana, 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 75503 →Compare Texarkana with another place →
Weather by month in Texarkana
July is the warmest month at Texarkana, TX, averaging 93°F by day and 73°F at night; January is the coldest at 54°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 October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 79% of years and April still brings one in 14% of years.
Warmth for growing adds up to 5,844 growing degree days a year (base 50°F), fewer than at 79% of the 351 Texas stations. 39% of them (2,306) have built up by the end of June, and July adds the most, 1,028. Precipitation totals 52.6 inches a year, most in May (5.3") and least in August (2.8"); May to September bring 38% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 54 | 33 | 4.3 | 100% | 16 | 47 |
| Feb | 59 | 37 | 4.6 | 98% | 10 | 79 |
| Mar | 67 | 44 | 4.7 | 79% | 3 | 217 |
| Apr | 75 | 51 | 4.9 | 14% | <1 | 400 |
| May | 82 | 62 | 5.3 | 0% | 0 | 677 |
| Jun | 89 | 70 | 4.4 | 0% | 0 | 886 |
| Jul | 93 | 73 | 3.4 | 0% | 0 | 1028 |
| Aug | 94 | 72 | 2.8 | 0% | 0 | 1017 |
| Sep | 87 | 65 | 3.9 | 0% | 0 | 786 |
| Oct | 77 | 53 | 4.8 | 8% | <1 | 468 |
| Nov | 65 | 42 | 4.3 | 78% | 5 | 174 |
| Dec | 56 | 36 | 5.2 | 100% | 12 | 66 |
Monthly normals 1991–2020 at Texarkana, TX (390 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, Texarkana Webb Field, AR, 5 miles east of Texarkana, has a last frost 2 days earlier (March 13), a first frost 4 days earlier (November 13), a season 3 days shorter.
When it snows in Texarkana, Texas
Measurable snow is rare here: only 5 of 23 winters from 1991 to 2020 recorded 0.1 inch or more at Wright Patman Dm & Lk, TX, 12.5 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 75503
| When | What to do |
|---|---|
| January 4 – January 18 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 18 – February 1 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 15 – March 1 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 15 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 25 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by November 3 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 17 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 75503 is 3 miles from Texarkana, TX, which stands at 390 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 3 other ZIP codes share the station; its figures are presented in full for 75501 (Texarkana). The 2023 USDA Plant Hardiness Zone Map lists ZIP 75503 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.