Fall in zone 6bPhoto: Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons
Frost dates for ZIP 65323 (Calhoun, MO)
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, Windsor, MO (7 miles away).
- Average last spring frostApr 1350% chance of a 32°F freeze after this date
- Average first fall frostOct 2250% chance of a 32°F freeze by this date
- Growing season (frost-free)191 daysmedian, 32°F threshold
- USDA hardiness zone6b-5 to 0°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
60°F 55°F or warmer
24-hour average · latest 58°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Powell Gardens (36 mi), Schell-Osage (39 mi).
4-inch depth
64°F 55°F or warmer
24-hour average · latest 63°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Powell Gardens (36 mi), Schell-Osage (39 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 65323 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 64°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: Transition zone. Timing only; always follow the product label.
- Bermudagrass (warm-season): Spring: Several weeks after the lawn is fully green (April–May) (about May 29 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
No vegetable planting windows are open this week.
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Oct 22: 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 30 |
| 50% (the "average" last frost) | Apr 13 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 30 |
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 9 |
| 50% (the "average" first frost) | Oct 22 |
| 90% (late: most years have frozen by now) | Nov 3 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 25 | Oct 13 |
| 32°F (freeze) | Apr 13 | Oct 22 |
| 28°F (hard freeze) | Apr 2 | Nov 1 |
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 65323
Dates count from your average last spring frost (Apr 13) and first fall frost (Oct 22). 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 | Feb 16–Mar 2 | Apr 20–May 4 (transplant) | – |
| Pepper (sweet and hot) | Feb 2–16 | Apr 27–May 11 (transplant) | – |
| Eggplant | Feb 2–16 | Apr 27–May 11 (transplant) | – |
| Tomatillo | Feb 16–Mar 2 | Apr 20–May 4 (transplant) | – |
| Lettuce | Feb 16–Mar 2 | Mar 23–Apr 13 (transplant) Mar 16–Apr 27 (sow outdoors) | Aug 27–Sep 17 (transplant) Aug 13–Sep 10 (sowing) |
| Spinach | – | Mar 2–23 (sow outdoors) | Aug 27–Sep 17 (sowing) |
| Kale | Feb 16–Mar 2 | Mar 16–30 (transplant) Mar 16–30 (sow outdoors) | Jul 30–Aug 27 (transplant) Jul 16–Aug 13 (sowing) |
| Collards | Feb 16–Mar 2 | Mar 16–Apr 13 (transplant) Mar 16–Apr 13 (sow outdoors) | Jul 30–Aug 27 (transplant) Jul 16–Aug 13 (sowing) |
| Broccoli | Feb 2–16 | Mar 16–30 (transplant) | Jul 16–Aug 13 (transplant) |
| Cabbage | Feb 2–16 | Mar 16–30 (transplant) | Jul 16–Aug 13 (transplant) |
| Cauliflower | Feb 2–16 | Mar 30–Apr 13 (transplant) | Jul 16–Aug 13 (transplant) |
| Brussels sprouts | Jan 19–Feb 2 | Mar 16–30 (transplant) | Jul 2–23 (transplant) |
| Kohlrabi | Feb 16–Mar 2 | Mar 16–30 (transplant) Mar 16–30 (sow outdoors) | Aug 13–27 (sowing) |
| Bok choy / Asian greens | – | Mar 16–30 (sow outdoors) | Aug 27–Sep 10 (sowing) |
| Arugula | – | Mar 16–Apr 13 (sow outdoors) | Aug 27–Sep 24 (sowing) |
| Mustard greens | – | Mar 16–Apr 6 (sow outdoors) | Aug 27–Sep 10 (sowing) |
| Swiss chard | Mar 2–16 | Mar 30–Apr 20 (transplant) Mar 30–Apr 27 (sow outdoors) | Aug 13–27 (sowing) |
| Beet | – | Mar 16–Apr 13 (sow outdoors) | Aug 13–27 (sowing) |
| Carrot | – | Mar 23–Apr 20 (sow outdoors) | Jul 30–Aug 13 (sowing) |
| Radish | – | Mar 9–Apr 20 (sow outdoors) | Sep 10–24 (sowing) |
| Turnip | – | Mar 16–Apr 6 (sow outdoors) | Aug 13–27 (sowing) |
| Parsnip | – | Mar 23–Apr 13 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Feb 16–Mar 16 (sow outdoors) | Jul 30–Aug 13 (sowing) |
| Onion (bulbing) | Jan 19–Feb 2 | Mar 2–16 (transplant) | – |
| Green onion / scallion | – | Mar 2–30 (sow outdoors) | Aug 13–27 (sowing) |
| Leek | Jan 19–Feb 2 | Mar 16–30 (transplant) | – |
| Garlic | – | – | Sep 10–Oct 8 (sowing) |
| Shallot | – | Mar 2–16 (transplant) | Sep 10–Oct 8 (sowing) |
| Potato | – | Mar 16–30 (transplant) | Jul 2–16 (transplant) |
| Sweet potato | – | May 4–18 (transplant) | – |
| Sweet corn | – | Apr 20–May 4 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 20–May 4 (sow outdoors) | – |
| Bean, pole | – | Apr 20–May 4 (sow outdoors) | – |
| Lima bean | – | Apr 27–May 11 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | May 4–25 (sow outdoors) | – |
| Cucumber | Mar 16–23 | Apr 20–May 4 (transplant) Apr 20–May 4 (sow outdoors) | – |
| Summer squash / zucchini | Mar 16–23 | Apr 20–May 4 (transplant) Apr 20–May 4 (sow outdoors) | – |
| Winter squash | Mar 16–23 | Apr 20–May 4 (transplant) Apr 20–May 4 (sow outdoors) | – |
| Pumpkin | – | Apr 20–May 4 (sow outdoors) | – |
| Watermelon | Mar 16–23 | Apr 27–May 11 (transplant) Apr 27–May 11 (sow outdoors) | – |
| Cantaloupe / muskmelon | Mar 16–23 | Apr 27–May 11 (transplant) Apr 27–May 11 (sow outdoors) | – |
| Okra | Mar 2–16 | Apr 27–May 11 (transplant) Apr 27–May 11 (sow outdoors) | – |
| Celery | Jan 19–Feb 2 | Apr 20–27 (transplant) | – |
| Basil | Mar 2–16 | Apr 20–May 4 (transplant) Apr 20–May 4 (sow outdoors) | – |
| Cilantro | – | Mar 30–Apr 27 (sow outdoors) | Aug 27–Sep 10 (sowing) |
| Parsley | Feb 2–16 | Mar 30–Apr 13 (transplant) Mar 23–Apr 13 (sow outdoors) | – |
| Dill | – | Apr 13–27 (sow outdoors) | Aug 27–Sep 10 (sowing) |
| Sunflower | – | Apr 13–27 (sow outdoors) | – |
| Asparagus (crowns) | – | Mar 16–30 (transplant) | – |
| Rhubarb (crowns) | – | Mar 16–30 (transplant) | – |
| Strawberry (plants) | – | Mar 16–30 (transplant) | Aug 13–Sep 10 (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
Missouri has a university or garden plant program: Plants of Merit. Plant frost-tender annuals after April 13 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: Windsor, MO (NOAA GHCN-Daily ID USC00239034), elevation 877 ft, 7.1 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Windsor, MO | 7 mi | Apr 7 | Oct 28 |
| Clinton, MO | 9 mi | Apr 17 | Oct 21 |
| Truman Dam & Rsvr, MO | 17 mi | Apr 7 | Oct 30 |
The average last-frost dates of these stations span 10 days, a rough guide to local variation. See data sources & methods.
Frost questions for 65323
When is the last frost in 65323?
The average (50% chance) last spring freeze of 32°F for ZIP 65323 is April 13. For a more cautious planting date, use April 30, when only 1 year in 10 still sees a later freeze.
When is the first frost in 65323?
The average first fall freeze is October 22. In 1 year in 10 it comes by October 9.
What hardiness zone is 65323?
ZIP 65323 is in USDA zone 6b (-5 to 0°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 65323 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
65360 Windsor 64735 Clinton 64761 Leeton 64733 Chilhowee 65332 Green Ridge 64740 Deepwater 65335 Ionia 64726 Blairstown
Other ZIP codes in Henry County
64726 64735 64740 64770 64788 65360 All Henry County frost dates · Missouri frost dates
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