Frost dates for ZIP 63074 (St. Ann, 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, St Louis Lambert Intl AP, MO (2 miles away).
- Average last spring frostApr 250% 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)215 daysmedian, 32°F threshold
- USDA hardiness zone7a0 to 5°F avg. coldest night
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This week in your yard
As of Oct 17, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Soil temperature now
2-inch depth
62°F 55°F or warmer
24-hour average · latest 61°F, as of Oct 17, 10:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Shaw Nature Reserve (28 mi), Elsberry PMC (36 mi).
4-inch depth
63°F 55°F or warmer
24-hour average · latest 63°F, as of Oct 17, 10:00 PM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Shaw Nature Reserve (28 mi), Elsberry PMC (36 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 63074 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 63°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 18 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 17 |
| 50% (the "average" last frost) | Apr 2 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 17 |
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 18 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 13 | Oct 26 |
| 32°F (freeze) | Apr 2 | Nov 4 |
| 28°F (hard freeze) | Mar 23 | Nov 13 |
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 63074
Dates count from your average last spring frost (Apr 2) 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 | Feb 5–19 | Apr 9–23 (transplant) | Jul 8–Aug 5 (transplant) |
| Pepper (sweet and hot) | Jan 22–Feb 5 | Apr 16–30 (transplant) | Jul 15–Aug 5 (transplant) |
| Eggplant | Jan 22–Feb 5 | Apr 16–30 (transplant) | Jul 15–Aug 5 (transplant) |
| Tomatillo | Feb 5–19 | Apr 9–23 (transplant) | – |
| Lettuce | Feb 5–19 | Mar 12–Apr 2 (transplant) Mar 5–Apr 16 (sow outdoors) | Sep 9–30 (transplant) Aug 26–Sep 23 (sowing) |
| Spinach | – | Feb 19–Mar 12 (sow outdoors) | Sep 9–30 (sowing) |
| Kale | Feb 5–19 | Mar 5–19 (transplant) Mar 5–19 (sow outdoors) | Aug 12–Sep 9 (transplant) Jul 29–Aug 26 (sowing) |
| Collards | Feb 5–19 | Mar 5–Apr 2 (transplant) Mar 5–Apr 2 (sow outdoors) | Aug 12–Sep 9 (transplant) Jul 29–Aug 26 (sowing) |
| Broccoli | Jan 22–Feb 5 | Mar 5–19 (transplant) | Jul 29–Aug 26 (transplant) |
| Cabbage | Jan 22–Feb 5 | Mar 5–19 (transplant) | Jul 29–Aug 26 (transplant) |
| Cauliflower | Jan 22–Feb 5 | Mar 19–Apr 2 (transplant) | Jul 29–Aug 26 (transplant) |
| Brussels sprouts | Jan 8–22 | Mar 5–19 (transplant) | Jul 15–Aug 5 (transplant) |
| Kohlrabi | Feb 5–19 | Mar 5–19 (transplant) Mar 5–19 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Bok choy / Asian greens | – | Mar 5–19 (sow outdoors) | Sep 9–23 (sowing) |
| Arugula | – | Mar 5–Apr 2 (sow outdoors) | Sep 9–Oct 7 (sowing) |
| Mustard greens | – | Mar 5–26 (sow outdoors) | Sep 9–23 (sowing) |
| Swiss chard | Feb 19–Mar 5 | Mar 19–Apr 9 (transplant) Mar 19–Apr 16 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Beet | – | Mar 5–Apr 2 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Carrot | – | Mar 12–Apr 9 (sow outdoors) | Aug 12–26 (sowing) |
| Radish | – | Feb 26–Apr 9 (sow outdoors) | Sep 23–Oct 7 (sowing) |
| Turnip | – | Mar 5–26 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Parsnip | – | Mar 12–Apr 2 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Feb 5–Mar 5 (sow outdoors) | Aug 12–26 (sowing) |
| Onion (bulbing) | Jan 8–22 | Feb 19–Mar 5 (transplant) | – |
| Green onion / scallion | – | Feb 19–Mar 19 (sow outdoors) | Aug 26–Sep 9 (sowing) |
| Leek | Jan 8–22 | Mar 5–19 (transplant) | – |
| Garlic | – | – | Sep 23–Oct 21 (sowing) |
| Shallot | – | Feb 19–Mar 5 (transplant) | Sep 23–Oct 21 (sowing) |
| Potato | – | Mar 5–19 (transplant) | Jul 15–29 (transplant) |
| Sweet potato | – | Apr 23–May 7 (transplant) | – |
| Sweet corn | – | Apr 9–23 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 9–23 (sow outdoors) | Aug 12–26 (sowing) |
| Bean, pole | – | Apr 9–23 (sow outdoors) | – |
| Lima bean | – | Apr 16–30 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 23–May 14 (sow outdoors) | – |
| Cucumber | Mar 5–12 | Apr 9–23 (transplant) Apr 9–23 (sow outdoors) | Aug 12–26 (sowing) |
| Summer squash / zucchini | Mar 5–12 | Apr 9–23 (transplant) Apr 9–23 (sow outdoors) | Aug 12–26 (sowing) |
| Winter squash | Mar 5–12 | Apr 9–23 (transplant) Apr 9–23 (sow outdoors) | – |
| Pumpkin | – | Apr 9–23 (sow outdoors) | – |
| Watermelon | Mar 5–12 | Apr 16–30 (transplant) Apr 16–30 (sow outdoors) | – |
| Cantaloupe / muskmelon | Mar 5–12 | Apr 16–30 (transplant) Apr 16–30 (sow outdoors) | – |
| Okra | Feb 19–Mar 5 | Apr 16–30 (transplant) Apr 16–30 (sow outdoors) | – |
| Celery | Jan 8–22 | Apr 9–16 (transplant) | – |
| Basil | Feb 19–Mar 5 | Apr 9–23 (transplant) Apr 9–23 (sow outdoors) | – |
| Cilantro | – | Mar 19–Apr 16 (sow outdoors) | Sep 9–23 (sowing) |
| Parsley | Jan 22–Feb 5 | Mar 19–Apr 2 (transplant) Mar 12–Apr 2 (sow outdoors) | – |
| Dill | – | Apr 2–16 (sow outdoors) | Sep 9–23 (sowing) |
| Sunflower | – | Apr 2–16 (sow outdoors) | – |
| Asparagus (crowns) | – | Mar 5–19 (transplant) | – |
| Rhubarb (crowns) | – | Mar 5–19 (transplant) | – |
| Strawberry (plants) | – | Mar 5–19 (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
Missouri has a university or garden plant program: Plants of Merit. Plant frost-tender annuals after April 2 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: St Louis Lambert Intl AP, MO (NOAA GHCN-Daily ID USW00013994), elevation 531 ft, 2.0 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| St Charles 7 SSW, MO | 8 mi | Apr 4 | Oct 29 |
| St Charles Elm Pt, MO | 9 mi | Apr 8 | Oct 29 |
| St Louis Sci Ctr, MO | 9 mi | Apr 1 | Nov 4 |
The average last-frost dates of these stations span 7 days, a rough guide to local variation. See data sources & methods.
Frost questions for 63074
When is the last frost in 63074?
The average (50% chance) last spring freeze of 32°F for ZIP 63074 is April 2. For a more cautious planting date, use April 17, when only 1 year in 10 still sees a later freeze.
When is the first frost in 63074?
The average first fall freeze is November 4. In 1 year in 10 it comes by October 23.
What hardiness zone is 63074?
ZIP 63074 is in USDA zone 7a (0 to 5°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 63074 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
63114 Overland 63134 Berkeley 63132 Olivette 63043 Maryland Heights 63140 Kinloch 63042 Hazelwood 63044 Bridgeton 63121 Normandy
Other ZIP codes in St. Louis County
63005 63011 63017 63021 63025 63031 63033 63034 63038 63040 63042 63043 63044 63045 63088 63105 63114 63117 63119 63121 63122 63123 63124 63125 All St. Louis County frost dates · Missouri frost dates
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