Frost dates for 73137 — Oklahoma City, OK
How Oklahoma City compares
- In 8 years out of 10, the last spring frost in Oklahoma City falls between March 12 and April 18, a 37-day window. The first fall frost falls between October 20 and November 20.
- The median last frost is 2 days earlier than the Oklahoma median of Apr 4.
- Its 217-day growing season is longer than 69% of the 582 Oklahoma places with a regular frost season (state median 211 days).
- The last frost is typical for zone 7b, where the median is Apr 5.
- The weather station records an average of 68 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 12 |
| 50% (median) | April 2 |
| 10% (safe for tender plants) | April 18 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 20 |
| 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 Oklahoma City, OK
Frost dates for 73137 — Oklahoma City, OK — last frost Apr 2, first frost Nov 5, zone 7b. whenisthelastfrost.com
When to plant vegetables in Oklahoma City, OK
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 8 – Jan 22 | Mar 5 – Mar 19 | — | — |
| Peppers | Jan 22 – Feb 5 | Apr 16 – Apr 30 | — | — |
| Eggplant | Jan 22 – Feb 5 | Apr 16 – Apr 30 | — | — |
| Tomatoes | Feb 5 – Feb 19 | Apr 9 – Apr 23 | — | — |
| Lettuce | Feb 5 – Feb 19 | Mar 12 – Mar 26 | Mar 5 – Apr 9 | Sep 10 – Oct 8 |
| Kale | Feb 5 – Feb 19 | Mar 5 – Mar 19 | Mar 5 – Mar 19 | Aug 27 – Sep 17 |
| Broccoli | Feb 5 – Feb 19 | Mar 19 – Apr 2 | — | Jul 30 – Aug 20 |
| Cabbage | Feb 5 – Feb 19 | Mar 12 – Mar 26 | — | Jul 30 – Aug 20 |
| Cauliflower | Feb 5 – Feb 19 | Mar 19 – Apr 2 | — | Jul 30 – Aug 20 |
| Okra | Feb 19 – Mar 5 | Apr 23 – May 7 | Apr 23 – May 7 | — |
| Basil | Feb 19 – Mar 5 | Apr 9 – Apr 23 | — | — |
| Peas | — | — | Feb 19 – Mar 12 | Aug 13 – Sep 3 |
| Spinach | — | — | Feb 19 – Mar 12 | Sep 10 – Oct 1 |
| Radishes | — | — | Feb 26 – Apr 9 | Sep 24 – Oct 15 |
| Cucumbers | Mar 5 – Mar 12 | Apr 16 – Apr 23 | Apr 9 – Apr 23 | Aug 20 – Sep 3 |
| Zucchini & Summer Squash | Mar 5 – Mar 12 | — | Apr 9 – Apr 23 | Aug 27 – Sep 10 |
| Winter Squash & Pumpkins | Mar 5 – Mar 12 | — | Apr 9 – Apr 23 | — |
| Melons & Watermelon | Mar 5 – Mar 12 | Apr 16 – Apr 30 | — | — |
| Carrots | — | — | Mar 12 – Apr 9 | Aug 13 – Aug 27 |
| Beets | — | — | Mar 12 – Apr 9 | Aug 27 – Sep 10 |
| Potatoes | — | — | Mar 12 – Apr 2 | — |
| Swiss Chard | — | — | Mar 19 – Apr 16 | Aug 27 – Sep 10 |
| Cilantro | — | — | Mar 19 – Apr 9 | Sep 10 – Oct 1 |
| Green Beans | — | — | Apr 9 – Apr 30 | Aug 20 – Sep 3 |
| Sweet Corn | — | — | Apr 9 – Apr 23 | — |
| Sweet Potatoes | — | Apr 16 – May 7 | — | — |
| 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 Spencer 2ene Mesonet, OK weather station, 6 km away (elevation 1,224 ft (373 m)).
ZIP codes in Oklahoma City: 73101 73102 73103 73104 73105 73106 73107 73108 73109 73110 73111 73112 73113 73114 73115 73116 73117 73118 73119 73120 73121 73122 73123 73124 73125 73126 73127 73128 73129 73130 73131 73132 73134 73135 73136 73137 73139 73140 73141 73142 73143 73144 73145 73146 73147 73148 73149 73150 73151 73152 73153 73154 73155 73156 73157 73159 73160 73162 73163 73164 …
Frost dates near Oklahoma City
- Spencer Apr 2 · Nov 5
- Nicoma Park Apr 2 · Nov 5
- Jones Apr 2 · Nov 5
- Arcadia Apr 2 · Nov 5
- Edmond Apr 2 · Nov 5
- Choctaw Apr 2 · Nov 5
- Bethany Apr 2 · Nov 4
- Harrah Apr 2 · Nov 5
Frequently asked questions
When is the last frost in Oklahoma City, OK?
The median last spring frost in Oklahoma City, OK is April 2. There is still about a 10% chance of frost after April 18, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Oklahoma City, OK?
The median first fall frost is November 5, with about a 10% chance of frost before October 20.
How long is the growing season in Oklahoma City, OK?
About 217 days between the median last spring frost and first fall frost.
What planting zone is Oklahoma City, OK?
Oklahoma City, OK is in USDA hardiness zone 7b.