Tecumseh, OK frost dates
Last spring frostMar 30median date
First fall frostNov 5median date
Growing season220 daysfrost-free
Hardiness zone7bZone 7b
How Tecumseh compares
- In 8 years out of 10, the last spring frost in Tecumseh falls between March 10 and April 16, a 37-day window. The first fall frost falls between October 22 and November 20.
- The median last frost is 5 days earlier than the Oklahoma median of Apr 4.
- Its 220-day growing season is longer than 82% of the 582 Oklahoma places with a regular frost season (state median 211 days).
- The last frost is 6 days earlier than the zone 7b median of Apr 5. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7b chart.
- The weather station records an average of 68 nights a year at or below 32°F.
- Compared with Norman, OK, 41 km away, the last frost here is 4 days earlier than there and the growing season is 6 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 10 |
| 50% (median) | March 30 |
| 10% (safe for tender plants) | April 16 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 22 |
| 50% (median) | November 5 |
| 90% (late) | November 20 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Tecumseh, OK
Tecumseh, OK frost dates — last frost Mar 30, first frost Nov 5, zone 7b. whenisthelastfrost.com
Crop
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Start indoors: Jan 5 to Jan 19Transplant outside: Mar 2 to Mar 16
Start indoors: Jan 19 to Feb 2Transplant outside: Apr 13 to Apr 27
Start indoors: Jan 19 to Feb 2Transplant outside: Apr 13 to Apr 27
Start indoors: Feb 2 to Feb 16Transplant outside: Apr 6 to Apr 20
Start indoors: Feb 2 to Feb 16Transplant outside: Mar 9 to Mar 23Sow outdoors: Mar 2 to Apr 6Plant for fall: Sep 10 to Oct 8
Start indoors: Feb 2 to Feb 16Transplant outside: Mar 2 to Mar 16Sow outdoors: Mar 2 to Mar 16Plant for fall: Aug 27 to Sep 17
Start indoors: Feb 2 to Feb 16Transplant outside: Mar 16 to Mar 30Plant for fall: Jul 30 to Aug 20
Start indoors: Feb 2 to Feb 16Transplant outside: Mar 9 to Mar 23Plant for fall: Jul 30 to Aug 20
Start indoors: Feb 2 to Feb 16Transplant outside: Mar 16 to Mar 30Plant for fall: Jul 30 to Aug 20
Start indoors: Feb 16 to Mar 2Transplant outside: Apr 20 to May 4Sow outdoors: Apr 20 to May 4
Start indoors: Feb 16 to Mar 2Transplant outside: Apr 6 to Apr 20
Sow outdoors: Feb 16 to Mar 9Plant for fall: Aug 13 to Sep 3
Sow outdoors: Feb 16 to Mar 9Plant for fall: Sep 10 to Oct 1
Sow outdoors: Feb 23 to Apr 6Plant for fall: Sep 24 to Oct 15
Start indoors: Mar 2 to Mar 9Transplant outside: Apr 13 to Apr 20Sow outdoors: Apr 6 to Apr 20Plant for fall: Aug 20 to Sep 3
Start indoors: Mar 2 to Mar 9Sow outdoors: Apr 6 to Apr 20Plant for fall: Aug 27 to Sep 10
Start indoors: Mar 2 to Mar 9Sow outdoors: Apr 6 to Apr 20
Start indoors: Mar 2 to Mar 9Transplant outside: Apr 13 to Apr 27
Sow outdoors: Mar 9 to Apr 6Plant for fall: Aug 13 to Aug 27
Sow outdoors: Mar 9 to Apr 6Plant for fall: Aug 27 to Sep 10
Sow outdoors: Mar 9 to Mar 30
Sow outdoors: Mar 16 to Apr 13Plant for fall: Aug 27 to Sep 10
Sow outdoors: Mar 16 to Apr 6Plant for fall: Sep 10 to Oct 1
Sow outdoors: Apr 6 to Apr 27Plant for fall: Aug 20 to Sep 3
Sow outdoors: Apr 6 to Apr 20
Transplant outside: Apr 13 to May 4
Plant for fall: Oct 22 to Nov 26
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Tecumseh, OK
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 5 – Jan 19 | Mar 2 – Mar 16 | — | — |
| Peppers | Jan 19 – Feb 2 | Apr 13 – Apr 27 | — | — |
| Eggplant | Jan 19 – Feb 2 | Apr 13 – Apr 27 | — | — |
| Tomatoes | Feb 2 – Feb 16 | Apr 6 – Apr 20 | — | — |
| Lettuce | Feb 2 – Feb 16 | Mar 9 – Mar 23 | Mar 2 – Apr 6 | Sep 10 – Oct 8 |
| Kale | Feb 2 – Feb 16 | Mar 2 – Mar 16 | Mar 2 – Mar 16 | Aug 27 – Sep 17 |
| Broccoli | Feb 2 – Feb 16 | Mar 16 – Mar 30 | — | Jul 30 – Aug 20 |
| Cabbage | Feb 2 – Feb 16 | Mar 9 – Mar 23 | — | Jul 30 – Aug 20 |
| Cauliflower | Feb 2 – Feb 16 | Mar 16 – Mar 30 | — | Jul 30 – Aug 20 |
| Okra | Feb 16 – Mar 2 | Apr 20 – May 4 | Apr 20 – May 4 | — |
| Basil | Feb 16 – Mar 2 | Apr 6 – Apr 20 | — | — |
| Peas | — | — | Feb 16 – Mar 9 | Aug 13 – Sep 3 |
| Spinach | — | — | Feb 16 – Mar 9 | Sep 10 – Oct 1 |
| Radishes | — | — | Feb 23 – Apr 6 | Sep 24 – Oct 15 |
| Cucumbers | Mar 2 – Mar 9 | Apr 13 – Apr 20 | Apr 6 – Apr 20 | Aug 20 – Sep 3 |
| Zucchini & Summer Squash | Mar 2 – Mar 9 | — | Apr 6 – Apr 20 | Aug 27 – Sep 10 |
| Winter Squash & Pumpkins | Mar 2 – Mar 9 | — | Apr 6 – Apr 20 | — |
| Melons & Watermelon | Mar 2 – Mar 9 | Apr 13 – Apr 27 | — | — |
| Carrots | — | — | Mar 9 – Apr 6 | Aug 13 – Aug 27 |
| Beets | — | — | Mar 9 – Apr 6 | Aug 27 – Sep 10 |
| Potatoes | — | — | Mar 9 – Mar 30 | — |
| Swiss Chard | — | — | Mar 16 – Apr 13 | Aug 27 – Sep 10 |
| Cilantro | — | — | Mar 16 – Apr 6 | Sep 10 – Oct 1 |
| Green Beans | — | — | Apr 6 – Apr 27 | Aug 20 – Sep 3 |
| Sweet Corn | — | — | Apr 6 – Apr 20 | — |
| Sweet Potatoes | — | Apr 13 – May 4 | — | — |
| Garlic | — | — | — | Oct 22 – Nov 26 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Shawnee 3nnw Mesonet, OK weather station, 13 km away (elevation 1,076 ft (328 m)).
Frost dates near Tecumseh
- Shawnee Mar 30 · Nov 5
- Earlsboro Apr 1 · Nov 1
- Macomb Mar 30 · Nov 5
- Mcloud Apr 4 · Oct 30
- Maud Apr 1 · Nov 1
- Saint Louis Apr 1 · Nov 1
- Newalla Mar 30 · Nov 5
- Seminole Apr 5 · Nov 1
- Wanette Mar 25 · Nov 8
- Bowlegs Apr 1 · Nov 1
Frequently asked questions
When is the last frost in Tecumseh, OK?
The median last spring frost in Tecumseh, OK is March 30. There is still about a 10% chance of frost after April 16, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Tecumseh, OK?
The median first fall frost is November 5, with about a 10% chance of frost before October 22.
How long is the growing season in Tecumseh, OK?
About 220 days between the median last spring frost and first fall frost.
What planting zone is Tecumseh, OK?
Tecumseh, OK is in USDA hardiness zone 7b.