Chester, OK frost dates
Last spring frostApr 11median date
First fall frostOct 25median date
Growing season197 daysfrost-free
Hardiness zone7aZone 7a
How Chester compares
- In 8 years out of 10, the last spring frost in Chester falls between March 26 and April 26, a 31-day window. The first fall frost falls between October 12 and November 7.
- The median last frost is 7 days later than the Oklahoma median of Apr 4.
- Its 197-day growing season is longer than 8% of the 582 Oklahoma places with a regular frost season (state median 211 days).
- The last frost is 5 days earlier than the zone 7a median of Apr 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7a chart.
- The weather station records an average of 106 nights a year at or below 32°F.
- Compared with Enid, OK, 92 km away, the last frost here is 5 days later than there and the growing season is 12 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 26 |
| 50% (median) | April 11 |
| 10% (safe for tender plants) | April 26 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 12 |
| 50% (median) | October 25 |
| 90% (late) | November 7 |
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 Chester, OK
Chester, OK frost dates — last frost Apr 11, first frost Oct 25, zone 7a. whenisthelastfrost.com
Crop
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Start indoors: Jan 17 to Jan 31Transplant outside: Mar 14 to Mar 28
Start indoors: Jan 31 to Feb 14Transplant outside: Apr 25 to May 9
Start indoors: Jan 31 to Feb 14Transplant outside: Apr 25 to May 9
Start indoors: Feb 14 to Feb 28Transplant outside: Apr 18 to May 2
Start indoors: Feb 14 to Feb 28Transplant outside: Mar 21 to Apr 4Sow outdoors: Mar 14 to Apr 18Plant for fall: Aug 30 to Sep 27
Start indoors: Feb 14 to Feb 28Transplant outside: Mar 14 to Mar 28Sow outdoors: Mar 14 to Mar 28Plant for fall: Aug 16 to Sep 6
Start indoors: Feb 14 to Feb 28Transplant outside: Mar 28 to Apr 11Plant for fall: Jul 19 to Aug 9
Start indoors: Feb 14 to Feb 28Transplant outside: Mar 21 to Apr 4Plant for fall: Jul 19 to Aug 9
Start indoors: Feb 14 to Feb 28Transplant outside: Mar 28 to Apr 11Plant for fall: Jul 19 to Aug 9
Start indoors: Feb 28 to Mar 14Transplant outside: May 2 to May 16Sow outdoors: May 2 to May 16
Start indoors: Feb 28 to Mar 14Transplant outside: Apr 18 to May 2
Sow outdoors: Feb 28 to Mar 21Plant for fall: Aug 2 to Aug 23
Sow outdoors: Feb 28 to Mar 21Plant for fall: Aug 30 to Sep 20
Sow outdoors: Mar 7 to Apr 18Plant for fall: Sep 13 to Oct 4
Start indoors: Mar 14 to Mar 21Transplant outside: Apr 25 to May 2Sow outdoors: Apr 18 to May 2Plant for fall: Aug 9 to Aug 23
Start indoors: Mar 14 to Mar 21Sow outdoors: Apr 18 to May 2Plant for fall: Aug 16 to Aug 30
Start indoors: Mar 14 to Mar 21Sow outdoors: Apr 18 to May 2
Start indoors: Mar 14 to Mar 21Transplant outside: Apr 25 to May 9
Sow outdoors: Mar 21 to Apr 18Plant for fall: Aug 2 to Aug 16
Sow outdoors: Mar 21 to Apr 18Plant for fall: Aug 16 to Aug 30
Sow outdoors: Mar 21 to Apr 11
Sow outdoors: Mar 28 to Apr 25Plant for fall: Aug 16 to Aug 30
Sow outdoors: Mar 28 to Apr 18Plant for fall: Aug 30 to Sep 20
Sow outdoors: Apr 18 to May 9Plant for fall: Aug 9 to Aug 23
Sow outdoors: Apr 18 to May 2
Transplant outside: Apr 25 to May 16
Plant for fall: Oct 11 to Nov 15
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Chester, OK
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 17 – Jan 31 | Mar 14 – Mar 28 | — | — |
| Peppers | Jan 31 – Feb 14 | Apr 25 – May 9 | — | — |
| Eggplant | Jan 31 – Feb 14 | Apr 25 – May 9 | — | — |
| Tomatoes | Feb 14 – Feb 28 | Apr 18 – May 2 | — | — |
| Lettuce | Feb 14 – Feb 28 | Mar 21 – Apr 4 | Mar 14 – Apr 18 | Aug 30 – Sep 27 |
| Kale | Feb 14 – Feb 28 | Mar 14 – Mar 28 | Mar 14 – Mar 28 | Aug 16 – Sep 6 |
| Broccoli | Feb 14 – Feb 28 | Mar 28 – Apr 11 | — | Jul 19 – Aug 9 |
| Cabbage | Feb 14 – Feb 28 | Mar 21 – Apr 4 | — | Jul 19 – Aug 9 |
| Cauliflower | Feb 14 – Feb 28 | Mar 28 – Apr 11 | — | Jul 19 – Aug 9 |
| Okra | Feb 28 – Mar 14 | May 2 – May 16 | May 2 – May 16 | — |
| Basil | Feb 28 – Mar 14 | Apr 18 – May 2 | — | — |
| Peas | — | — | Feb 28 – Mar 21 | Aug 2 – Aug 23 |
| Spinach | — | — | Feb 28 – Mar 21 | Aug 30 – Sep 20 |
| Radishes | — | — | Mar 7 – Apr 18 | Sep 13 – Oct 4 |
| Cucumbers | Mar 14 – Mar 21 | Apr 25 – May 2 | Apr 18 – May 2 | Aug 9 – Aug 23 |
| Zucchini & Summer Squash | Mar 14 – Mar 21 | — | Apr 18 – May 2 | Aug 16 – Aug 30 |
| Winter Squash & Pumpkins | Mar 14 – Mar 21 | — | Apr 18 – May 2 | — |
| Melons & Watermelon | Mar 14 – Mar 21 | Apr 25 – May 9 | — | — |
| Carrots | — | — | Mar 21 – Apr 18 | Aug 2 – Aug 16 |
| Beets | — | — | Mar 21 – Apr 18 | Aug 16 – Aug 30 |
| Potatoes | — | — | Mar 21 – Apr 11 | — |
| Swiss Chard | — | — | Mar 28 – Apr 25 | Aug 16 – Aug 30 |
| Cilantro | — | — | Mar 28 – Apr 18 | Aug 30 – Sep 20 |
| Green Beans | — | — | Apr 18 – May 9 | Aug 9 – Aug 23 |
| Sweet Corn | — | — | Apr 18 – May 2 | — |
| Sweet Potatoes | — | Apr 25 – May 16 | — | — |
| Garlic | — | — | — | Oct 11 – Nov 15 |
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 Seiling 7wnw Mesonet, OK weather station, 16 km away (elevation 1,788 ft (545 m)).
Frost dates near Chester
- Seiling Apr 18 · Oct 21
- Mutual Apr 19 · Oct 26
- Fairview Apr 5 · Nov 1
- Taloga Apr 18 · Oct 21
- Mooreland Apr 5 · Oct 30
- Longdale Apr 5 · Nov 1
- Southard Apr 5 · Nov 1
- Waynoka Apr 12 · Oct 24
- Vici Apr 19 · Oct 26
- Canton Apr 6 · Nov 3
Frequently asked questions
When is the last frost in Chester, OK?
The median last spring frost in Chester, OK is April 11. There is still about a 10% chance of frost after April 26, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Chester, OK?
The median first fall frost is October 25, with about a 10% chance of frost before October 12.
How long is the growing season in Chester, OK?
About 197 days between the median last spring frost and first fall frost.
What planting zone is Chester, OK?
Chester, OK is in USDA hardiness zone 7a.