Winthrop, AR frost dates
Last spring frostMar 26median date
First fall frostNov 5median date
Growing season224 daysfrost-free
Hardiness zone8aZone 8a
How Winthrop compares
- In 8 years out of 10, the last spring frost in Winthrop falls between March 4 and April 11, a 38-day window. The first fall frost falls between October 21 and November 23.
- The median last frost is 2 days earlier than the Arkansas median of Mar 28.
- Its 224-day growing season is longer than 53% of the 603 Arkansas places with a regular frost season (state median 222 days).
- The last frost is typical for zone 8a, where the median is Mar 29.
- The weather station records an average of 68 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 4 |
| 50% (median) | March 26 |
| 10% (safe for tender plants) | April 11 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 21 |
| 50% (median) | November 5 |
| 90% (late) | November 23 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Winthrop, AR
Winthrop, AR frost dates — last frost Mar 26, first frost Nov 5, zone 8a. whenisthelastfrost.com
Crop
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Start indoors: Jan 1 to Jan 15Transplant outside: Feb 26 to Mar 12
Start indoors: Jan 15 to Jan 29Transplant outside: Apr 9 to Apr 23
Start indoors: Jan 15 to Jan 29Transplant outside: Apr 9 to Apr 23
Start indoors: Jan 29 to Feb 12Transplant outside: Apr 2 to Apr 16
Start indoors: Jan 29 to Feb 12Transplant outside: Mar 5 to Mar 19Sow outdoors: Feb 26 to Apr 2Plant for fall: Sep 10 to Oct 8
Start indoors: Jan 29 to Feb 12Transplant outside: Feb 26 to Mar 12Sow outdoors: Feb 26 to Mar 12Plant for fall: Aug 27 to Sep 17
Start indoors: Jan 29 to Feb 12Transplant outside: Mar 12 to Mar 26Plant for fall: Jul 30 to Aug 20
Start indoors: Jan 29 to Feb 12Transplant outside: Mar 5 to Mar 19Plant for fall: Jul 30 to Aug 20
Start indoors: Jan 29 to Feb 12Transplant outside: Mar 12 to Mar 26Plant for fall: Jul 30 to Aug 20
Start indoors: Feb 12 to Feb 26Transplant outside: Apr 16 to Apr 30Sow outdoors: Apr 16 to Apr 30
Start indoors: Feb 12 to Feb 26Transplant outside: Apr 2 to Apr 16
Sow outdoors: Feb 12 to Mar 5Plant for fall: Aug 13 to Sep 3
Sow outdoors: Feb 12 to Mar 5Plant for fall: Sep 10 to Oct 1
Sow outdoors: Feb 19 to Apr 2Plant for fall: Sep 24 to Oct 15
Start indoors: Feb 26 to Mar 5Transplant outside: Apr 9 to Apr 16Sow outdoors: Apr 2 to Apr 16Plant for fall: Aug 20 to Sep 3
Start indoors: Feb 26 to Mar 5Sow outdoors: Apr 2 to Apr 16Plant for fall: Aug 27 to Sep 10
Start indoors: Feb 26 to Mar 5Sow outdoors: Apr 2 to Apr 16
Start indoors: Feb 26 to Mar 5Transplant outside: Apr 9 to Apr 23
Sow outdoors: Mar 5 to Apr 2Plant for fall: Aug 13 to Aug 27
Sow outdoors: Mar 5 to Apr 2Plant for fall: Aug 27 to Sep 10
Sow outdoors: Mar 5 to Mar 26
Sow outdoors: Mar 12 to Apr 9Plant for fall: Aug 27 to Sep 10
Sow outdoors: Mar 12 to Apr 2Plant for fall: Sep 10 to Oct 1
Sow outdoors: Apr 2 to Apr 23Plant for fall: Aug 20 to Sep 3
Sow outdoors: Apr 2 to Apr 16
Transplant outside: Apr 9 to Apr 30
Plant for fall: Oct 22 to Nov 26
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Winthrop, AR
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 1 – Jan 15 | Feb 26 – Mar 12 | — | — |
| Peppers | Jan 15 – Jan 29 | Apr 9 – Apr 23 | — | — |
| Eggplant | Jan 15 – Jan 29 | Apr 9 – Apr 23 | — | — |
| Tomatoes | Jan 29 – Feb 12 | Apr 2 – Apr 16 | — | — |
| Lettuce | Jan 29 – Feb 12 | Mar 5 – Mar 19 | Feb 26 – Apr 2 | Sep 10 – Oct 8 |
| Kale | Jan 29 – Feb 12 | Feb 26 – Mar 12 | Feb 26 – Mar 12 | Aug 27 – Sep 17 |
| Broccoli | Jan 29 – Feb 12 | Mar 12 – Mar 26 | — | Jul 30 – Aug 20 |
| Cabbage | Jan 29 – Feb 12 | Mar 5 – Mar 19 | — | Jul 30 – Aug 20 |
| Cauliflower | Jan 29 – Feb 12 | Mar 12 – Mar 26 | — | Jul 30 – Aug 20 |
| Okra | Feb 12 – Feb 26 | Apr 16 – Apr 30 | Apr 16 – Apr 30 | — |
| Basil | Feb 12 – Feb 26 | Apr 2 – Apr 16 | — | — |
| Peas | — | — | Feb 12 – Mar 5 | Aug 13 – Sep 3 |
| Spinach | — | — | Feb 12 – Mar 5 | Sep 10 – Oct 1 |
| Radishes | — | — | Feb 19 – Apr 2 | Sep 24 – Oct 15 |
| Cucumbers | Feb 26 – Mar 5 | Apr 9 – Apr 16 | Apr 2 – Apr 16 | Aug 20 – Sep 3 |
| Zucchini & Summer Squash | Feb 26 – Mar 5 | — | Apr 2 – Apr 16 | Aug 27 – Sep 10 |
| Winter Squash & Pumpkins | Feb 26 – Mar 5 | — | Apr 2 – Apr 16 | — |
| Melons & Watermelon | Feb 26 – Mar 5 | Apr 9 – Apr 23 | — | — |
| Carrots | — | — | Mar 5 – Apr 2 | Aug 13 – Aug 27 |
| Beets | — | — | Mar 5 – Apr 2 | Aug 27 – Sep 10 |
| Potatoes | — | — | Mar 5 – Mar 26 | — |
| Swiss Chard | — | — | Mar 12 – Apr 9 | Aug 27 – Sep 10 |
| Cilantro | — | — | Mar 12 – Apr 2 | Sep 10 – Oct 1 |
| Green Beans | — | — | Apr 2 – Apr 23 | Aug 20 – Sep 3 |
| Sweet Corn | — | — | Apr 2 – Apr 16 | — |
| Sweet Potatoes | — | Apr 9 – Apr 30 | — | — |
| Garlic | — | — | — | Oct 22 – Nov 26 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the De Queen Sevier Co Ap, AR weather station, 21 km away (elevation 354 ft (108 m)).
Frost dates near Winthrop
- Horatio Mar 29 · Nov 5
- Alleene Mar 24 · Nov 11
- Foreman Mar 24 · Nov 11
- De Queen Mar 29 · Nov 5
- Ben Lomond Mar 24 · Nov 11
- Wilton Mar 24 · Nov 11
- Lockesburg Mar 29 · Nov 5
- Ashdown Mar 24 · Nov 11
- Gillham Mar 29 · Nov 5
- Grannis Mar 29 · Nov 5
Frequently asked questions
When is the last frost in Winthrop, AR?
The median last spring frost in Winthrop, AR is March 26. There is still about a 10% chance of frost after April 11, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Winthrop, AR?
The median first fall frost is November 5, with about a 10% chance of frost before October 21.
How long is the growing season in Winthrop, AR?
About 224 days between the median last spring frost and first fall frost.
What planting zone is Winthrop, AR?
Winthrop, AR is in USDA hardiness zone 8a.