Frost dates for ZIP 74133 (Tulsa, OK)
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, Bixby, OK (4 miles away).
- Average last spring frostApr 150% chance of a 32°F freeze after this date
- Average first fall frostNov 150% chance of a 32°F freeze by this date
- Growing season (frost-free)212 daysmedian, 32°F threshold
- USDA hardiness zone7b5 to 10°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
No soil station with a fresh reading within 62 miles.
4-inch depth
No soil station with a fresh reading within 62 miles.
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 74133 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
No soil reading near this ZIP. Typical extension timing for your region: spring mid-February to mid-March; fall September to early October.
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 17 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 1: 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 12 |
| 50% (the "average" last frost) | Apr 1 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 20 |
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 16 |
| 50% (the "average" first frost) | Nov 1 |
| 90% (late: most years have frozen by now) | Nov 13 |
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 22 |
| 32°F (freeze) | Apr 1 | Nov 1 |
| 28°F (hard freeze) | Mar 17 | Nov 9 |
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 74133
Dates count from your average last spring frost (Apr 1) and first fall frost (Nov 1). 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 4–18 | Apr 8–22 (transplant) | Jul 5–Aug 2 (transplant) |
| Pepper (sweet and hot) | Jan 21–Feb 4 | Apr 15–29 (transplant) | Jul 12–Aug 2 (transplant) |
| Eggplant | Jan 21–Feb 4 | Apr 15–29 (transplant) | Jul 12–Aug 2 (transplant) |
| Tomatillo | Feb 4–18 | Apr 8–22 (transplant) | – |
| Lettuce | Feb 4–18 | Mar 11–Apr 1 (transplant) Mar 4–Apr 15 (sow outdoors) | Sep 6–27 (transplant) Aug 23–Sep 20 (sowing) |
| Spinach | – | Feb 18–Mar 11 (sow outdoors) | Sep 6–27 (sowing) |
| Kale | Feb 4–18 | Mar 4–18 (transplant) Mar 4–18 (sow outdoors) | Aug 9–Sep 6 (transplant) Jul 26–Aug 23 (sowing) |
| Collards | Feb 4–18 | Mar 4–Apr 1 (transplant) Mar 4–Apr 1 (sow outdoors) | Aug 9–Sep 6 (transplant) Jul 26–Aug 23 (sowing) |
| Broccoli | Jan 21–Feb 4 | Mar 4–18 (transplant) | Jul 26–Aug 23 (transplant) |
| Cabbage | Jan 21–Feb 4 | Mar 4–18 (transplant) | Jul 26–Aug 23 (transplant) |
| Cauliflower | Jan 21–Feb 4 | Mar 18–Apr 1 (transplant) | Jul 26–Aug 23 (transplant) |
| Brussels sprouts | Jan 7–21 | Mar 4–18 (transplant) | Jul 12–Aug 2 (transplant) |
| Kohlrabi | Feb 4–18 | Mar 4–18 (transplant) Mar 4–18 (sow outdoors) | Aug 23–Sep 6 (sowing) |
| Bok choy / Asian greens | – | Mar 4–18 (sow outdoors) | Sep 6–20 (sowing) |
| Arugula | – | Mar 4–Apr 1 (sow outdoors) | Sep 6–Oct 4 (sowing) |
| Mustard greens | – | Mar 4–25 (sow outdoors) | Sep 6–20 (sowing) |
| Swiss chard | Feb 18–Mar 4 | Mar 18–Apr 8 (transplant) Mar 18–Apr 15 (sow outdoors) | Aug 23–Sep 6 (sowing) |
| Beet | – | Mar 4–Apr 1 (sow outdoors) | Aug 23–Sep 6 (sowing) |
| Carrot | – | Mar 11–Apr 8 (sow outdoors) | Aug 9–23 (sowing) |
| Radish | – | Feb 25–Apr 8 (sow outdoors) | Sep 20–Oct 4 (sowing) |
| Turnip | – | Mar 4–25 (sow outdoors) | Aug 23–Sep 6 (sowing) |
| Parsnip | – | Mar 11–Apr 1 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Feb 4–Mar 4 (sow outdoors) | Aug 9–23 (sowing) |
| Onion (bulbing) | Jan 7–21 | Feb 18–Mar 4 (transplant) | – |
| Green onion / scallion | – | Feb 18–Mar 18 (sow outdoors) | Aug 23–Sep 6 (sowing) |
| Leek | Jan 7–21 | Mar 4–18 (transplant) | – |
| Garlic | – | – | Sep 20–Oct 18 (sowing) |
| Shallot | – | Feb 18–Mar 4 (transplant) | Sep 20–Oct 18 (sowing) |
| Potato | – | Mar 4–18 (transplant) | Jul 12–26 (transplant) |
| Sweet potato | – | Apr 22–May 6 (transplant) | – |
| Sweet corn | – | Apr 8–22 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 8–22 (sow outdoors) | Aug 9–23 (sowing) |
| Bean, pole | – | Apr 8–22 (sow outdoors) | – |
| Lima bean | – | Apr 15–29 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 22–May 13 (sow outdoors) | – |
| Cucumber | Mar 4–11 | Apr 8–22 (transplant) Apr 8–22 (sow outdoors) | Aug 9–23 (sowing) |
| Summer squash / zucchini | Mar 4–11 | Apr 8–22 (transplant) Apr 8–22 (sow outdoors) | Aug 9–23 (sowing) |
| Winter squash | Mar 4–11 | Apr 8–22 (transplant) Apr 8–22 (sow outdoors) | – |
| Pumpkin | – | Apr 8–22 (sow outdoors) | – |
| Watermelon | Mar 4–11 | Apr 15–29 (transplant) Apr 15–29 (sow outdoors) | – |
| Cantaloupe / muskmelon | Mar 4–11 | Apr 15–29 (transplant) Apr 15–29 (sow outdoors) | – |
| Okra | Feb 18–Mar 4 | Apr 15–29 (transplant) Apr 15–29 (sow outdoors) | – |
| Celery | Jan 7–21 | Apr 8–15 (transplant) | – |
| Basil | Feb 18–Mar 4 | Apr 8–22 (transplant) Apr 8–22 (sow outdoors) | – |
| Cilantro | – | Mar 18–Apr 15 (sow outdoors) | Sep 6–20 (sowing) |
| Parsley | Jan 21–Feb 4 | Mar 18–Apr 1 (transplant) Mar 11–Apr 1 (sow outdoors) | – |
| Dill | – | Apr 1–15 (sow outdoors) | Sep 6–20 (sowing) |
| Sunflower | – | Apr 1–15 (sow outdoors) | – |
| Asparagus (crowns) | – | Mar 4–18 (transplant) | – |
| Rhubarb (crowns) | – | Mar 4–18 (transplant) | – |
| Strawberry (plants) | – | Mar 4–18 (transplant) | Aug 23–Sep 20 (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
Oklahoma has a university or garden plant program: Oklahoma Proven. Plant frost-tender annuals after April 1 here (the average last frost). Not affiliated with the program.
Where these numbers come from
Station: Bixby, OK (NOAA GHCN-Daily ID USC00340782), elevation 605 ft, 3.9 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Tulsa R L Jones Jr AP, OK | 6 mi | Mar 30 | Nov 4 |
| Tulsa Intl AP, OK | 11 mi | Mar 31 | Nov 4 |
| Claremore 2 ENE, OK | 26 mi | Apr 7 | Oct 30 |
The average last-frost dates of these stations span 8 days, a rough guide to local variation. See data sources & methods.
Frost questions for 74133
When is the last frost in 74133?
The average (50% chance) last spring freeze of 32°F for ZIP 74133 is April 1. For a more cautious planting date, use April 20, when only 1 year in 10 still sees a later freeze.
When is the first frost in 74133?
The average first fall freeze is November 1. In 1 year in 10 it comes by October 16.
What hardiness zone is 74133?
ZIP 74133 is in USDA zone 7b (5 to 10°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 74133 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
74137 Tulsa 74136 Tulsa 74145 Tulsa 74012 Broken Arrow 74171 Tulsa 74146 Tulsa 74135 Tulsa 74011 Broken Arrow
Other ZIP codes in Tulsa County
74008 74011 74012 74021 74033 74037 74055 74063 74103 74104 74105 74106 74107 74108 74110 74112 74114 74115 74116 74117 74119 74120 74128 74129 All Tulsa County frost dates · Oklahoma frost dates
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