USDA Hardiness Zone 7b
Frost Dates for 72959 — Winslow, Arkansas
NOAA 1991–2020 normals from Winslow 7NE, AR (2,189 ft), 7 miles northeast.
Updated
In Winslow, the last spring frost (32°F) is around April 5 in half of years and has passed by April 23 in nine years out of ten. The first fall frost comes around November 5, as early as October 23 one year in ten, leaving a typical freeze-free season of 211 days (NOAA, Winslow 7NE, AR).
- Last spring frost
- April 5
- First fall frost
- November 5
- Growing season
- 211 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 21
- Winters with snow
- 93%
- Snow per year
- 6.5"
median, 1991–2020
median, 1991–2020
28 of 30 observed
NOAA normal
Frost risk by date in Winslow
Half of springs at Winslow 7NE, AR see their last 32°F night by April 5; only one in ten is past it by March 22, and one in ten still has one after April 23. Planting tender crops after April 11 leaves a 30% risk of a frost on them, after April 17 20%, and after April 23 10%. The 18 days between the even-odds date and the one-in-ten date is wider than at 60% of the 105 Arkansas stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 5 in half of years, as early as October 23 one year in ten, and holds off past November 20 one year in ten. A hard freeze of 28°F follows 9 days later, around November 14; in spring the one-in-ten date for 28°F is April 11, 12 days before the 32°F one. The freeze-free season lasts 211 days in a typical year, shorter than at 74% of the 105 Arkansas stations; it reaches 234 days one year in ten and falls short of 189 one year in ten. On average 73 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 11 days longer, to about April 16, and return around October 27. Severe cold of 16°F or below comes in 99% of winters, usually between December 19 and February 23.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 1 | Apr 6 | Apr 10 | Apr 13 | Apr 16 | Apr 20 | Apr 23 | Apr 27 | May 1 |
| 32°F | Mar 22 | Mar 28 | Mar 31 | Apr 3 | Apr 5 | Apr 8 | Apr 11 | Apr 17 | Apr 23 |
| 28°F | Mar 10 | Mar 17 | Mar 21 | Mar 25 | Mar 29 | Mar 31 | Apr 3 | Apr 6 | Apr 11 |
| 24°F | Feb 26 | Mar 5 | Mar 10 | Mar 14 | Mar 17 | Mar 21 | Mar 25 | Mar 29 | Apr 2 |
| 20°F | Feb 13 | Feb 21 | Feb 27 | Mar 2 | Mar 7 | Mar 10 | Mar 13 | Mar 17 | Mar 23 |
| 16°F99% of yrs | Jan 25 | Feb 4 | Feb 12 | Feb 18 | Feb 23 | Feb 28 | Mar 4 | Mar 9 | Mar 14 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 14 | Oct 18 | Oct 22 | Oct 24 | Oct 27 | Oct 30 | Nov 1 | Nov 4 | Nov 10 |
| 32°F | Oct 23 | Oct 28 | Oct 31 | Nov 2 | Nov 5 | Nov 8 | Nov 11 | Nov 15 | Nov 20 |
| 28°F | Oct 31 | Nov 4 | Nov 7 | Nov 10 | Nov 14 | Nov 17 | Nov 21 | Nov 25 | Dec 1 |
| 24°F | Nov 6 | Nov 12 | Nov 16 | Nov 21 | Nov 25 | Nov 29 | Dec 2 | Dec 6 | Dec 12 |
| 20°F | Nov 15 | Nov 23 | Nov 27 | Dec 1 | Dec 4 | Dec 8 | Dec 13 | Dec 19 | Dec 27 |
| 16°F99% of yrs | Nov 27 | Dec 2 | Dec 8 | Dec 13 | Dec 19 | Dec 24 | Dec 30 | Jan 4 | Jan 12 |
Freeze probabilities 1991–2020 at Winslow 7NE, 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 72959 →Compare Winslow with another place →
Weather by month in Winslow
August is the warmest month at Winslow 7NE, AR, averaging 87°F by day and 69°F at night; January is the coldest at 44°F and 28°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 68% of years.
Warmth for growing adds up to 4,228 growing degree days a year (base 50°F), fewer than at 93% of the 105 Arkansas stations. 36% of them (1,539) have built up by the end of June, and August adds the most, 857.
| Month | High °F | Low °F | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|
| Jan | 44 | 28 | 100% | 20 | 12 |
| Feb | 49 | 30 | 100% | 18 | 29 |
| Mar | 57 | 37 | 99% | 9 | 86 |
| Apr | 66 | 48 | 68% | 2 | 241 |
| May | 73 | 56 | 2% | <1 | 463 |
| Jun | 82 | 65 | 0% | 0 | 708 |
| Jul | 85 | 69 | 0% | 0 | 831 |
| Aug | 87 | 69 | 0% | 0 | 857 |
| Sep | 78 | 61 | 0% | 0 | 588 |
| Oct | 68 | 51 | 31% | 1 | 312 |
| Nov | 56 | 40 | 99% | 7 | 84 |
| Dec | 46 | 30 | 100% | 17 | 16 |
Monthly normals 1991–2020 at Winslow 7NE, AR (2,189 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, Mountainburg 2 NE, AR, 11 miles south of Winslow and 1,396 feet lower, has a last frost 4 days later (April 9), a first frost 8 days earlier (October 28), a season 10 days shorter.
When it snows in Winslow, Arkansas
The first measurable snow (0.1 inch or more) in Winslow usually arrives around December 22, and the last of the season around February 21. Those are the middle dates across the winters of 1991–2020 at Fayetteville Drake Field, AR, 15 miles away: half of years saw snow earlier, half later. Snow fell in 93% of those winters. The last 32°F night of spring typically comes 43 days after the last snow.
Planting calendar for 72959
| When | What to do |
|---|---|
| January 25 – February 8 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 8 – February 22 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 8 – March 22 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 5 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 13 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 22 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 5 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 72959 is 7 miles from Winslow 7NE, AR, which stands at 2,189 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 72727 (Elkins). The 2023 USDA Plant Hardiness Zone Map lists ZIP 72959 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.