USDA Hardiness Zone 8b
Frost Dates for 71765 — Strong, Arkansas
NOAA 1991–2020 normals from Calion L&D, AR (77 ft), 15 miles northwest.
Updated
In Strong, the last spring frost (32°F) is around March 18 in half of years and has passed by April 6 in nine years out of ten. The first fall frost comes around November 7, as early as October 24 one year in ten, leaving a typical freeze-free season of 235 days (NOAA, Calion L&D, AR).
- Last spring frost
- March 18
- First fall frost
- November 7
- Growing season
- 235 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
- 36%
- Snow per year
- 0.8"
median, 1991–2020
median, 1991–2020
10 of 28 observed
NOAA normal
Frost risk by date in Strong
Half of springs at Calion L&D, AR see their last 32°F night by March 18; only one in ten is past it by February 28, and one in ten still has one after April 6. Planting tender crops after March 27 leaves a 30% risk of a frost on them, after April 1 20%, and after April 6 10%. The 19 days between the even-odds date and the one-in-ten date is wider than at 80% of the 105 Arkansas stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 7 in half of years, as early as October 24 one year in ten, and holds off past November 27 one year in ten. A hard freeze of 28°F follows 14 days later, around November 21; in spring the one-in-ten date for 28°F is March 23, 14 days before the 32°F one. The freeze-free season lasts 235 days in a typical year, longer than at 75% of the 105 Arkansas stations; it reaches 260 days one year in ten and falls short of 209 one year in ten. On average 60 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 April 2, and return around October 30. Nights of 24°F, cold enough to damage hardier plants, come in 99% of winters and 16°F in 50%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 14 | Mar 20 | Mar 26 | Mar 30 | Apr 2 | Apr 5 | Apr 7 | Apr 13 | Apr 20 |
| 32°F | Feb 28 | Mar 6 | Mar 10 | Mar 15 | Mar 18 | Mar 22 | Mar 27 | Apr 1 | Apr 6 |
| 28°F | Feb 10 | Feb 21 | Feb 26 | Feb 28 | Mar 4 | Mar 8 | Mar 11 | Mar 16 | Mar 23 |
| 24°F99% of yrs | Jan 19 | Jan 29 | Feb 2 | Feb 12 | Feb 17 | Feb 23 | Feb 28 | Mar 4 | Mar 10 |
| 20°F87% of yrs | Dec 30 | Jan 10 | Jan 19 | Jan 25 | Jan 31 | Feb 2 | Feb 8 | Feb 15 | Feb 27 |
| 16°F50% of yrs | too rare for a date | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 16 | Oct 20 | Oct 23 | Oct 26 | Oct 30 | Nov 1 | Nov 4 | Nov 7 | Nov 13 |
| 32°F | Oct 24 | Oct 30 | Nov 2 | Nov 5 | Nov 7 | Nov 11 | Nov 15 | Nov 19 | Nov 27 |
| 28°F | Nov 3 | Nov 7 | Nov 12 | Nov 16 | Nov 21 | Nov 26 | Dec 1 | Dec 4 | Dec 11 |
| 24°F99% of yrs | Nov 12 | Nov 19 | Nov 26 | Dec 1 | Dec 5 | Dec 10 | Dec 19 | Dec 28 | Jan 5 |
| 20°F87% of yrs | Nov 27 | Dec 6 | Dec 14 | Dec 21 | Dec 27 | Jan 1 | Jan 6 | Jan 14 | Jan 25 |
| 16°F50% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Calion L&D, 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 71765 →Compare Strong with another place →
Weather by month in Strong
July is the warmest month at Calion L&D, AR, averaging 93°F by day and 71°F at night; January is the coldest at 55°F and 32°F. A freezing night is all but certain in every month from November to February (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 83% of years and April still brings one in 22% of years.
Warmth for growing adds up to 5,579 growing degree days a year (base 50°F), more than at 83% of the 105 Arkansas stations. 40% of them (2,228) have built up by the end of June, and July adds the most, 986. Precipitation totals 50.7 inches a year, most in April (5.5") and least in September (3.1"); May to September bring 36% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 55 | 32 | 4.3 | 100% | 17 | 47 |
| Feb | 59 | 35 | 4.3 | 98% | 13 | 73 |
| Mar | 67 | 43 | 5.1 | 83% | 5 | 208 |
| Apr | 75 | 50 | 5.5 | 22% | <1 | 391 |
| May | 83 | 60 | 4.6 | 0% | 0 | 657 |
| Jun | 89 | 68 | 4.1 | 0% | 0 | 852 |
| Jul | 93 | 71 | 3.2 | 0% | 0 | 986 |
| Aug | 93 | 70 | 3.5 | 0% | 0 | 964 |
| Sep | 87 | 63 | 3.1 | 0% | 0 | 750 |
| Oct | 77 | 51 | 3.8 | 23% | 1 | 429 |
| Nov | 65 | 40 | 3.7 | 91% | 7 | 157 |
| Dec | 57 | 35 | 5.5 | 100% | 16 | 66 |
Monthly normals 1991–2020 at Calion L&D, AR (77 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, Monroe 26 N, LA, 21 miles southeast of Strong, has a last frost 7 days later (March 25), a first frost 2 days earlier (November 5), a season 9 days shorter.
When it snows in Strong, Arkansas
Measurable snow is rare here: only 10 of 28 winters from 1991 to 2020 recorded 0.1 inch or more at Calion L&D, AR, 14.8 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 71765
| When | What to do |
|---|---|
| January 7 – January 21 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 21 – February 4 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 18 – March 4 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 18 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 15 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 24 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 7 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 71765 is 15 miles from Calion L&D, AR, which stands at 77 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 71744 (Hampton). The 2023 USDA Plant Hardiness Zone Map lists ZIP 71765 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.