Lamont, OK frost dates
Last spring frostApr 18median date
First fall frostOct 20median date
Growing season185 daysfrost-free
Hardiness zone7aZone 7a
How Lamont compares
- In 8 years out of 10, the last spring frost in Lamont falls between April 4 and May 2, a 28-day window. The first fall frost falls between October 4 and November 2.
- The median last frost is 14 days later than the Oklahoma median of Apr 4.
- Its 185-day growing season is among the shortest of the 582 Oklahoma places with a regular frost season.
- The last frost is typical for zone 7a, where the median is Apr 16.
- The weather station records an average of 110 nights a year at or below 32°F.
- Compared with Enid, OK, 44 km away, the last frost here is 12 days later than there and the growing season is 24 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 4 |
| 50% (median) | April 18 |
| 10% (safe for tender plants) | May 2 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 4 |
| 50% (median) | October 20 |
| 90% (late) | November 2 |
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 Lamont, OK
Lamont, OK frost dates — last frost Apr 18, first frost Oct 20, zone 7a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Jan 24 to Feb 7Transplant outside: Mar 21 to Apr 4
Start indoors: Feb 7 to Feb 21Transplant outside: May 2 to May 16
Start indoors: Feb 7 to Feb 21Transplant outside: May 2 to May 16
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 25 to May 9
Start indoors: Feb 21 to Mar 7Transplant outside: Mar 28 to Apr 11Sow outdoors: Mar 21 to Apr 25Plant for fall: Aug 25 to Sep 22
Start indoors: Feb 21 to Mar 7Transplant outside: Mar 21 to Apr 4Sow outdoors: Mar 21 to Apr 4Plant for fall: Aug 11 to Sep 1
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 4 to Apr 18Plant for fall: Jul 14 to Aug 4
Start indoors: Feb 21 to Mar 7Transplant outside: Mar 28 to Apr 11Plant for fall: Jul 14 to Aug 4
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 4 to Apr 18Plant for fall: Jul 14 to Aug 4
Start indoors: Mar 7 to Mar 21Transplant outside: May 9 to May 23Sow outdoors: May 9 to May 23
Start indoors: Mar 7 to Mar 21Transplant outside: Apr 25 to May 9
Sow outdoors: Mar 7 to Mar 28Plant for fall: Jul 28 to Aug 18
Sow outdoors: Mar 7 to Mar 28Plant for fall: Aug 25 to Sep 15
Sow outdoors: Mar 14 to Apr 25Plant for fall: Sep 8 to Sep 29
Start indoors: Mar 21 to Mar 28Transplant outside: May 2 to May 9Sow outdoors: Apr 25 to May 9Plant for fall: Aug 4 to Aug 18
Start indoors: Mar 21 to Mar 28Sow outdoors: Apr 25 to May 9Plant for fall: Aug 11 to Aug 25
Start indoors: Mar 21 to Mar 28Sow outdoors: Apr 25 to May 9
Start indoors: Mar 21 to Mar 28Transplant outside: May 2 to May 16
Sow outdoors: Mar 28 to Apr 25Plant for fall: Jul 28 to Aug 11
Sow outdoors: Mar 28 to Apr 25Plant for fall: Aug 11 to Aug 25
Sow outdoors: Mar 28 to Apr 18
Sow outdoors: Apr 4 to May 2Plant for fall: Aug 11 to Aug 25
Sow outdoors: Apr 4 to Apr 25Plant for fall: Aug 25 to Sep 15
Sow outdoors: Apr 25 to May 16Plant for fall: Aug 4 to Aug 18
Sow outdoors: Apr 25 to May 9
Transplant outside: May 2 to May 23
Plant for fall: Oct 6 to Nov 10
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Lamont, OK
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 24 – Feb 7 | Mar 21 – Apr 4 | — | — |
| Peppers | Feb 7 – Feb 21 | May 2 – May 16 | — | — |
| Eggplant | Feb 7 – Feb 21 | May 2 – May 16 | — | — |
| Tomatoes | Feb 21 – Mar 7 | Apr 25 – May 9 | — | — |
| Lettuce | Feb 21 – Mar 7 | Mar 28 – Apr 11 | Mar 21 – Apr 25 | Aug 25 – Sep 22 |
| Kale | Feb 21 – Mar 7 | Mar 21 – Apr 4 | Mar 21 – Apr 4 | Aug 11 – Sep 1 |
| Broccoli | Feb 21 – Mar 7 | Apr 4 – Apr 18 | — | Jul 14 – Aug 4 |
| Cabbage | Feb 21 – Mar 7 | Mar 28 – Apr 11 | — | Jul 14 – Aug 4 |
| Cauliflower | Feb 21 – Mar 7 | Apr 4 – Apr 18 | — | Jul 14 – Aug 4 |
| Okra | Mar 7 – Mar 21 | May 9 – May 23 | May 9 – May 23 | — |
| Basil | Mar 7 – Mar 21 | Apr 25 – May 9 | — | — |
| Peas | — | — | Mar 7 – Mar 28 | Jul 28 – Aug 18 |
| Spinach | — | — | Mar 7 – Mar 28 | Aug 25 – Sep 15 |
| Radishes | — | — | Mar 14 – Apr 25 | Sep 8 – Sep 29 |
| Cucumbers | Mar 21 – Mar 28 | May 2 – May 9 | Apr 25 – May 9 | Aug 4 – Aug 18 |
| Zucchini & Summer Squash | Mar 21 – Mar 28 | — | Apr 25 – May 9 | Aug 11 – Aug 25 |
| Winter Squash & Pumpkins | Mar 21 – Mar 28 | — | Apr 25 – May 9 | — |
| Melons & Watermelon | Mar 21 – Mar 28 | May 2 – May 16 | — | — |
| Carrots | — | — | Mar 28 – Apr 25 | Jul 28 – Aug 11 |
| Beets | — | — | Mar 28 – Apr 25 | Aug 11 – Aug 25 |
| Potatoes | — | — | Mar 28 – Apr 18 | — |
| Swiss Chard | — | — | Apr 4 – May 2 | Aug 11 – Aug 25 |
| Cilantro | — | — | Apr 4 – Apr 25 | Aug 25 – Sep 15 |
| Green Beans | — | — | Apr 25 – May 16 | Aug 4 – Aug 18 |
| Sweet Corn | — | — | Apr 25 – May 9 | — |
| Sweet Potatoes | — | May 2 – May 23 | — | — |
| Garlic | — | — | — | Oct 6 – Nov 10 |
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 Jefferson 3se, OK weather station, 17 km away (elevation 1,043 ft (318 m)).
Frost dates near Lamont
- Deer Creek Apr 12 · Oct 29
- Hunter Apr 18 · Oct 20
- Nardin Apr 12 · Oct 29
- Medford Apr 10 · Oct 28
- Pond Creek Apr 18 · Oct 20
- Billings Apr 15 · Oct 26
- Tonkawa Apr 8 · Oct 27
- Blackwell Apr 12 · Oct 29
- Garber Apr 10 · Oct 29
- Kremlin Apr 6 · Nov 1
Frequently asked questions
When is the last frost in Lamont, OK?
The median last spring frost in Lamont, OK is April 18. There is still about a 10% chance of frost after May 2, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Lamont, OK?
The median first fall frost is October 20, with about a 10% chance of frost before October 4.
How long is the growing season in Lamont, OK?
About 185 days between the median last spring frost and first fall frost.
What planting zone is Lamont, OK?
Lamont, OK is in USDA hardiness zone 7a.