Fall in zone 8aPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 71923 (Arkadelphia, AR)
Average last spring and first fall frost dates with 10%, 50% and 90% odds, from NOAA's 1991–2020 climate normals for the nearest weather station, Arkadelphia 2 N, AR (4 miles away).
- Average last spring frostMar 2650% chance of a 32°F freeze after this date
- Average first fall frostNov 450% chance of a 32°F freeze by this date
- Growing season (frost-free)225 daysmedian, 32°F threshold
- USDA hardiness zone8a10 to 15°F avg. coldest night
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This week in your yard
As of Oct 18, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Soil temperature now
2-inch depth
71°F 55°F or warmer
24-hour average · latest 69°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Uapb Campus-PB (60 mi).
4-inch depth
71°F 55°F or warmer
24-hour average · latest 69°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Uapb Campus-PB (60 mi).
Fall: Texas A&M AgriLife times fall pre-emergent (for winter weeds such as annual bluegrass) to soil cooling to about 70°F for several days. The 50–55°F band is the spring trigger. Always read and follow the product label.
7-day forecast and frost risk
The latest National Weather Service 7-day forecast and any Frost Advisory or Freeze Warning for 71923 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 71°F at 4 inches (estimated soil temperature, not a station reading). Fall pre-emergent (annual bluegrass, winter weeds): window open as soil cools through the 70s and 60s.
Fertilizer window
Lawn region: South Central plains. Timing only; always follow the product label.
- Bermudagrass (warm-season): Spring: Several weeks after the lawn is fully green (April–May) (about May 11 here, using green-up about 3–4 weeks after your average last frost); Summer: Every 4–6 weeks through mid-August (heaviest feeder of the group); Late: Light, low-nitrogen/high-potassium feeding about 4 weeks before first frost, or skip. Avoid: Heavy late-fall nitrogen (linked to spring dead spot).
- Tall fescue (cool-season): Early fall: September (main feeding); Late fall: November, while still green; Late winter: Optional light feeding February–March. Avoid: Feeding after mid-spring and through summer in the transition zone (stress and brown patch).
Plant now
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 4: skip heavy pruning in the 6–8 weeks before it, because new growth may not harden off in time.
Spring-flowering shrubs are pruned right after their flowers fade, not by date. See the pruning guide.
Last spring frost odds
| Chance of a 32°F freeze after this date | Date |
|---|---|
| 90% (early: most years still freeze after this) | Mar 6 |
| 50% (the "average" last frost) | Mar 26 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 11 |
Most gardeners plant frost-tender crops (tomatoes, peppers, basil) after the 50% date, and closer to the 10% date for less risk.
First fall frost odds
| Chance the first 32°F freeze has happened by this date | Date |
|---|---|
| 10% (early: 1 year in 10 freezes this soon) | Oct 23 |
| 50% (the "average" first frost) | Nov 4 |
| 90% (late: most years have frozen by now) | Nov 21 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 6 | Oct 27 |
| 32°F (freeze) | Mar 26 | Nov 4 |
| 28°F (hard freeze) | Mar 11 | Nov 16 |
n/a means NOAA did not publish a date at that threshold for this station (usually because it rarely gets that cold).
Vegetable planting calendar for 71923
Dates count from your average last spring frost (Mar 26) and first fall frost (Nov 4). Half of years have a frost after the spring date, so give tender crops (tomatoes, peppers, squash) some slack.
| Crop | Start indoors | Spring planting | Fall planting |
|---|---|---|---|
| Tomato | Jan 29–Feb 12 | Apr 2–16 (transplant) | Jul 8–Aug 5 (transplant) |
| Pepper (sweet and hot) | Jan 15–29 | Apr 9–23 (transplant) | Jul 15–Aug 5 (transplant) |
| Eggplant | Jan 15–29 | Apr 9–23 (transplant) | Jul 15–Aug 5 (transplant) |
| Tomatillo | Jan 29–Feb 12 | Apr 2–16 (transplant) | – |
| Lettuce | Jan 29–Feb 12 | Mar 5–26 (transplant) Feb 26–Apr 9 (sow outdoors) | Sep 9–30 (transplant) Aug 26–Sep 23 (sowing) |
| Spinach | – | Feb 12–Mar 5 (sow outdoors) | Sep 9–30 (sowing) |
| Kale | Jan 29–Feb 12 | Feb 26–Mar 12 (transplant) Feb 26–Mar 12 (sow outdoors) | Aug 12–Sep 9 (transplant) Jul 29–Aug 26 (sowing) |
| Collards | Jan 29–Feb 12 | Feb 26–Mar 26 (transplant) Feb 26–Mar 26 (sow outdoors) | Aug 12–Sep 9 (transplant) Jul 29–Aug 26 (sowing) |
| Broccoli | Jan 15–29 | Feb 26–Mar 12 (transplant) | Jul 29–Aug 26 (transplant) |
| Cabbage | Jan 15–29 | Feb 26–Mar 12 (transplant) | Jul 29–Aug 26 (transplant) |
| Cauliflower | Jan 15–29 | Mar 12–26 (transplant) | Jul 29–Aug 26 (transplant) |
| Brussels sprouts | Jan 1–15 | Feb 26–Mar 12 (transplant) | Jul 15–Aug 5 (transplant) |
| Kohlrabi | Jan 29–Feb 12 | Feb 26–Mar 12 (transplant) Feb 26–Mar 12 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Bok choy / Asian greens | – | Feb 26–Mar 12 (sow outdoors) | Sep 9–23 (sowing) |
| Arugula | – | Feb 26–Mar 26 (sow outdoors) | Sep 9–Oct 7 (sowing) |
| Mustard greens | – | Feb 26–Mar 19 (sow outdoors) | Sep 9–23 (sowing) |
| Swiss chard | Feb 12–26 | Mar 12–Apr 2 (transplant) Mar 12–Apr 9 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Beet | – | Feb 26–Mar 26 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Carrot | – | Mar 5–Apr 2 (sow outdoors) | Aug 12–26 (sowing) |
| Radish | – | Feb 19–Apr 2 (sow outdoors) | Sep 23–Oct 7 (sowing) |
| Turnip | – | Feb 26–Mar 19 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Parsnip | – | Mar 5–26 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 29–Feb 26 (sow outdoors) | Aug 12–26 (sowing) |
| Onion (bulbing) | Jan 1–15 | Feb 12–26 (transplant) | – |
| Green onion / scallion | – | Feb 12–Mar 12 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Leek | Jan 1–15 | Feb 26–Mar 12 (transplant) | – |
| Garlic | – | – | Sep 23–Oct 21 (sowing) |
| Shallot | – | Feb 12–26 (transplant) | Sep 23–Oct 21 (sowing) |
| Potato | – | Feb 26–Mar 12 (transplant) | Jul 15–29 (transplant) |
| Sweet potato | – | Apr 16–30 (transplant) | – |
| Sweet corn | – | Apr 2–16 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 2–16 (sow outdoors) | Aug 12–26 (sowing) |
| Bean, pole | – | Apr 2–16 (sow outdoors) | – |
| Lima bean | – | Apr 9–23 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 16–May 7 (sow outdoors) | – |
| Cucumber | Feb 26–Mar 5 | Apr 2–16 (transplant) Apr 2–16 (sow outdoors) | Aug 12–26 (sowing) |
| Summer squash / zucchini | Feb 26–Mar 5 | Apr 2–16 (transplant) Apr 2–16 (sow outdoors) | Aug 12–26 (sowing) |
| Winter squash | Feb 26–Mar 5 | Apr 2–16 (transplant) Apr 2–16 (sow outdoors) | – |
| Pumpkin | – | Apr 2–16 (sow outdoors) | – |
| Watermelon | Feb 26–Mar 5 | Apr 9–23 (transplant) Apr 9–23 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 26–Mar 5 | Apr 9–23 (transplant) Apr 9–23 (sow outdoors) | – |
| Okra | Feb 12–26 | Apr 9–23 (transplant) Apr 9–23 (sow outdoors) | – |
| Celery | Jan 1–15 | Apr 2–9 (transplant) | – |
| Basil | Feb 12–26 | Apr 2–16 (transplant) Apr 2–16 (sow outdoors) | – |
| Cilantro | – | Mar 12–Apr 9 (sow outdoors) | Sep 9–23 (sowing) |
| Parsley | Jan 15–29 | Mar 12–26 (transplant) Mar 5–26 (sow outdoors) | – |
| Dill | – | Mar 26–Apr 9 (sow outdoors) | Sep 9–23 (sowing) |
| Sunflower | – | Mar 26–Apr 9 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 26–Mar 12 (transplant) | – |
| Rhubarb (crowns) | – | Feb 26–Mar 12 (transplant) | – |
| Strawberry (plants) | – | Feb 26–Mar 12 (transplant) | Aug 26–Sep 23 (transplant) |
Typical ranges from university extension planting calendars, adjusted to your frost dates. Probabilities, not guarantees. Fall windows that would overlap spring planting are left out, as are fall crops of frost-tender plants where the frost-free season is under 210 days.
Plants that do well here
Arkansas has a university or garden plant program: Arkansas Select (ended about 2005). Plant frost-tender annuals after March 26 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: Arkadelphia 2 N, AR (NOAA GHCN-Daily ID USC00030220), elevation 196 ft, 3.8 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Degray Lake Sp, AR | 13 mi | Mar 20 | Nov 10 |
| Hot Springs Asos, AR | 14 mi | Mar 24 | Nov 9 |
| Sparkman, AR | 18 mi | Mar 29 | Nov 4 |
The average last-frost dates of these stations span 9 days, a rough guide to local variation. See data sources & methods.
Frost questions for 71923
When is the last frost in 71923?
The average (50% chance) last spring freeze of 32°F for ZIP 71923 is March 26. For a more cautious planting date, use April 11, when only 1 year in 10 still sees a later freeze.
When is the first frost in 71923?
The average first fall freeze is November 4. In 1 year in 10 it comes by October 23.
What hardiness zone is 71923?
ZIP 71923 is in USDA zone 8a (10 to 15°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 71923 right now?
This page shows the latest 2-inch and 4-inch soil temperature from the nearest public soil station (USDA SCAN, NOAA USCRN or TexMesonet), or a labeled estimate when no station is close, against the 50–55°F spring pre-emergent band.
Nearby ZIP codes
71998 Arkadelphia 71999 Arkadelphia 71728 71942 Friendship 71941 Midway 71743 Gurdon 71929 Bismarck 71721 Beirne
Other ZIP codes in Clark County
71721 71728 71743 71772 71921 71962 71998 71999 All Clark County frost dates · Arkansas frost dates
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Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
- Freeze alerts
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Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.