Fall in zone 6aPhoto: Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons
Frost dates for ZIP 64434 (Conception Junction, 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, Conception, MO (3 miles away).
- Average last spring frostApr 1750% chance of a 32°F freeze after this date
- Average first fall frostOct 2050% chance of a 32°F freeze by this date
- Growing season (frost-free)184 daysmedian, 32°F threshold
- USDA hardiness zone6a-10 to -5°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
58°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 Spickard (54 mi).
4-inch depth
60°F 55°F or warmer
24-hour average · latest 60°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Spickard (54 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 64434 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 60°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 Jun 2 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 20: 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) | Apr 3 |
| 50% (the "average" last frost) | Apr 17 |
| 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 3 |
| 50% (the "average" first frost) | Oct 20 |
| 90% (late: most years have frozen by now) | Nov 2 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 27 | Oct 10 |
| 32°F (freeze) | Apr 17 | Oct 20 |
| 28°F (hard freeze) | Apr 8 | Oct 30 |
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 64434
Dates count from your average last spring frost (Apr 17) and first fall frost (Oct 20). 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 20–Mar 6 | Apr 24–May 8 (transplant) | – |
| Pepper (sweet and hot) | Feb 6–20 | May 1–15 (transplant) | – |
| Eggplant | Feb 6–20 | May 1–15 (transplant) | – |
| Tomatillo | Feb 20–Mar 6 | Apr 24–May 8 (transplant) | – |
| Lettuce | Feb 20–Mar 6 | Mar 27–Apr 17 (transplant) Mar 20–May 1 (sow outdoors) | Aug 25–Sep 15 (transplant) Aug 11–Sep 8 (sowing) |
| Spinach | – | Mar 6–27 (sow outdoors) | Aug 25–Sep 15 (sowing) |
| Kale | Feb 20–Mar 6 | Mar 20–Apr 3 (transplant) Mar 20–Apr 3 (sow outdoors) | Jul 28–Aug 25 (transplant) Jul 14–Aug 11 (sowing) |
| Collards | Feb 20–Mar 6 | Mar 20–Apr 17 (transplant) Mar 20–Apr 17 (sow outdoors) | Jul 28–Aug 25 (transplant) Jul 14–Aug 11 (sowing) |
| Broccoli | Feb 6–20 | Mar 20–Apr 3 (transplant) | Jul 14–Aug 11 (transplant) |
| Cabbage | Feb 6–20 | Mar 20–Apr 3 (transplant) | Jul 14–Aug 11 (transplant) |
| Cauliflower | Feb 6–20 | Apr 3–17 (transplant) | Jul 14–Aug 11 (transplant) |
| Brussels sprouts | Jan 23–Feb 6 | Mar 20–Apr 3 (transplant) | Jun 30–Jul 21 (transplant) |
| Kohlrabi | Feb 20–Mar 6 | Mar 20–Apr 3 (transplant) Mar 20–Apr 3 (sow outdoors) | Aug 11–25 (sowing) |
| Bok choy / Asian greens | – | Mar 20–Apr 3 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Arugula | – | Mar 20–Apr 17 (sow outdoors) | Aug 25–Sep 22 (sowing) |
| Mustard greens | – | Mar 20–Apr 10 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Swiss chard | Mar 6–20 | Apr 3–24 (transplant) Apr 3–May 1 (sow outdoors) | Aug 11–25 (sowing) |
| Beet | – | Mar 20–Apr 17 (sow outdoors) | Aug 11–25 (sowing) |
| Carrot | – | Mar 27–Apr 24 (sow outdoors) | Jul 28–Aug 11 (sowing) |
| Radish | – | Mar 13–Apr 24 (sow outdoors) | Sep 8–22 (sowing) |
| Turnip | – | Mar 20–Apr 10 (sow outdoors) | Aug 11–25 (sowing) |
| Parsnip | – | Mar 27–Apr 17 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Feb 20–Mar 20 (sow outdoors) | Jul 28–Aug 11 (sowing) |
| Onion (bulbing) | Jan 23–Feb 6 | Mar 6–20 (transplant) | – |
| Green onion / scallion | – | Mar 6–Apr 3 (sow outdoors) | Aug 11–25 (sowing) |
| Leek | Jan 23–Feb 6 | Mar 20–Apr 3 (transplant) | – |
| Garlic | – | – | Sep 8–Oct 6 (sowing) |
| Shallot | – | Mar 6–20 (transplant) | Sep 8–Oct 6 (sowing) |
| Potato | – | Mar 20–Apr 3 (transplant) | Jun 30–Jul 14 (transplant) |
| Sweet potato | – | May 8–22 (transplant) | – |
| Sweet corn | – | Apr 24–May 8 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 24–May 8 (sow outdoors) | – |
| Bean, pole | – | Apr 24–May 8 (sow outdoors) | – |
| Lima bean | – | May 1–15 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | May 8–29 (sow outdoors) | – |
| Cucumber | Mar 20–27 | Apr 24–May 8 (transplant) Apr 24–May 8 (sow outdoors) | – |
| Summer squash / zucchini | Mar 20–27 | Apr 24–May 8 (transplant) Apr 24–May 8 (sow outdoors) | – |
| Winter squash | Mar 20–27 | Apr 24–May 8 (transplant) Apr 24–May 8 (sow outdoors) | – |
| Pumpkin | – | Apr 24–May 8 (sow outdoors) | – |
| Watermelon | Mar 20–27 | May 1–15 (transplant) May 1–15 (sow outdoors) | – |
| Cantaloupe / muskmelon | Mar 20–27 | May 1–15 (transplant) May 1–15 (sow outdoors) | – |
| Okra | Mar 6–20 | May 1–15 (transplant) May 1–15 (sow outdoors) | – |
| Celery | Jan 23–Feb 6 | Apr 24–May 1 (transplant) | – |
| Basil | Mar 6–20 | Apr 24–May 8 (transplant) Apr 24–May 8 (sow outdoors) | – |
| Cilantro | – | Apr 3–May 1 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Parsley | Feb 6–20 | Apr 3–17 (transplant) Mar 27–Apr 17 (sow outdoors) | – |
| Dill | – | Apr 17–May 1 (sow outdoors) | Aug 25–Sep 8 (sowing) |
| Sunflower | – | Apr 17–May 1 (sow outdoors) | – |
| Asparagus (crowns) | – | Mar 20–Apr 3 (transplant) | – |
| Rhubarb (crowns) | – | Mar 20–Apr 3 (transplant) | – |
| Strawberry (plants) | – | Mar 20–Apr 3 (transplant) | Aug 11–Sep 8 (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 17 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: Conception, MO (NOAA GHCN-Daily ID USC00231822), elevation 1,108 ft, 3.1 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Maryville 2E, MO | 8 mi | Apr 19 | Oct 17 |
| Grant City 5WSW, MO | 19 mi | Apr 20 | Oct 19 |
| Albany, MO | 21 mi | Apr 17 | Oct 21 |
The average last-frost dates of these stations span 3 days, a rough guide to local variation. See data sources & methods.
Frost questions for 64434
When is the last frost in 64434?
The average (50% chance) last spring freeze of 32°F for ZIP 64434 is April 17. 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 64434?
The average first fall freeze is October 20. In 1 year in 10 it comes by October 3.
What hardiness zone is 64434?
ZIP 64434 is in USDA zone 6a (-10 to -5°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 64434 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
64433 Conception 64432 Clyde 64479 Ravenwood 64457 Guilford 64423 Barnard 64468 Maryville 64489 Stanberry 64427 Bolckow
Other ZIP codes in Nodaway County
64423 64428 64431 64432 64433 64445 64455 64457 64461 64468 64475 64476 64479 64487 All Nodaway County frost dates · Missouri frost dates
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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.