USDA Hardiness Zone 7b
Frost Dates for 72650 — Marshall, Arkansas
NOAA 1991–2020 normals from Marshall, AR (951 ft), 1 miles northeast.
Updated
In Marshall, the last spring frost (32°F) is around April 11 in half of years and has passed by April 27 in nine years out of ten. The first fall frost comes around October 26, as early as October 10 one year in ten, leaving a typical freeze-free season of 197 days (NOAA, Marshall, AR).
- Last spring frost
- April 11
- First fall frost
- October 26
- Growing season
- 197 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
- January 6
- Last snow
- February 15
- Winters with snow
- 91%
- Snow per year
- 4"
median, 1991–2020
median, 1991–2020
21 of 23 observed
NOAA normal
Frost risk by date in Marshall
Half of springs at Marshall, AR see their last 32°F night by April 11; only one in ten is past it by March 25, and one in ten still has one after April 27. Planting tender crops after April 18 leaves a 30% risk of a frost on them, after April 22 20%, and after April 27 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 65% of the 105 Arkansas stations behind this site's ZIP pages.
In fall the first 32°F night comes by October 26 in half of years, as early as October 10 one year in ten, and holds off past November 11 one year in ten. A hard freeze of 28°F follows 11 days later, around November 6; in spring the one-in-ten date for 28°F is April 16, 11 days before the 32°F one. The freeze-free season lasts 197 days in a typical year, shorter than at 93% of the 105 Arkansas stations; it reaches 222 days one year in ten and falls short of 175 one year in ten. On average 83 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 24, and return around October 16. Severe cold of 16°F or below comes every winter, usually between December 18 and February 24.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 8 | Apr 14 | Apr 17 | Apr 21 | Apr 24 | Apr 27 | Apr 30 | May 3 | May 8 |
| 32°F | Mar 25 | Mar 31 | Apr 4 | Apr 8 | Apr 11 | Apr 15 | Apr 18 | Apr 22 | Apr 27 |
| 28°F | Mar 9 | Mar 16 | Mar 21 | Mar 26 | Mar 30 | Apr 2 | Apr 5 | Apr 10 | Apr 16 |
| 24°F | Feb 25 | Mar 3 | Mar 8 | Mar 12 | Mar 16 | Mar 19 | Mar 24 | Mar 29 | Apr 4 |
| 20°F | Feb 10 | Feb 21 | Feb 27 | Mar 2 | Mar 7 | Mar 11 | Mar 15 | Mar 18 | Mar 25 |
| 16°F | Jan 26 | Feb 2 | Feb 10 | Feb 16 | Feb 24 | Feb 28 | Mar 3 | Mar 9 | Mar 15 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 1 | Oct 5 | Oct 10 | Oct 13 | Oct 16 | Oct 19 | Oct 22 | Oct 25 | Oct 30 |
| 32°F | Oct 10 | Oct 17 | Oct 20 | Oct 24 | Oct 26 | Oct 30 | Nov 1 | Nov 5 | Nov 11 |
| 28°F | Oct 21 | Oct 27 | Oct 31 | Nov 3 | Nov 6 | Nov 10 | Nov 14 | Nov 19 | Nov 27 |
| 24°F | Oct 31 | Nov 5 | Nov 11 | Nov 16 | Nov 20 | Nov 23 | Nov 28 | Dec 2 | Dec 8 |
| 20°F | Nov 9 | Nov 19 | Nov 24 | Nov 28 | Dec 1 | Dec 6 | Dec 11 | Dec 17 | Dec 23 |
| 16°F | Nov 24 | Dec 1 | Dec 7 | Dec 12 | Dec 18 | Dec 22 | Dec 27 | Jan 1 | Jan 11 |
Freeze probabilities 1991–2020 at Marshall, AR, 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 72650 →Compare Marshall with another place →
Weather by month in Marshall
July is the warmest month at Marshall, AR, averaging 89°F by day and 68°F at night; January is the coldest at 47°F and 26°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 78% of years.
Warmth for growing adds up to 4,412 growing degree days a year (base 50°F), fewer than at 88% of the 105 Arkansas stations. 37% of them (1,638) have built up by the end of June, and July adds the most, 880. Precipitation totals 47.6 inches a year, most in April (5.3") and least in January (3.2"); May to September bring 40% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 47 | 26 | 3.2 | 100% | 23 | 18 |
| Feb | 52 | 29 | 3.3 | 100% | 17 | 32 |
| Mar | 61 | 37 | 4.8 | 98% | 9 | 107 |
| Apr | 70 | 45 | 5.3 | 78% | 2 | 262 |
| May | 77 | 55 | 5.1 | 5% | 0 | 496 |
| Jun | 85 | 63 | 3.7 | 0% | 0 | 723 |
| Jul | 89 | 68 | 3.5 | 0% | 0 | 880 |
| Aug | 89 | 66 | 3.2 | 0% | 0 | 852 |
| Sep | 82 | 58 | 3.7 | 2% | 0 | 599 |
| Oct | 72 | 47 | 3.8 | 64% | 2 | 313 |
| Nov | 60 | 38 | 4.4 | 99% | 10 | 102 |
| Dec | 50 | 29 | 3.6 | 100% | 20 | 28 |
Monthly normals 1991–2020 at Marshall, AR (951 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, Dennard 10 WSW, AR, 12 miles south of Marshall and 789 feet higher, has a last frost 7 days earlier (April 4), a first frost 7 days later (November 2), a season 15 days longer.
When it snows in Marshall, Arkansas
The first measurable snow (0.1 inch or more) in Marshall usually arrives around January 6, and the last of the season around February 15. Those are the middle dates across the winters of 1991–2020 at Marshall, AR, 1.1 miles away: half of years saw snow earlier, half later. Snow fell in 91% of those winters. The last 32°F night of spring typically comes 55 days after the last snow.
Planting calendar for 72650
| When | What to do |
|---|---|
| January 31 – February 14 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 14 – February 28 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 14 – March 28 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 11 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 3 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 12 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 26 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 72650 is 1 mile from Marshall, AR, which stands at 951 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 72650 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.