Frost dates for 73173 — Oklahoma City, OK
How Oklahoma City compares
- In 8 years out of 10, the last spring frost in Oklahoma City falls between March 16 and April 20, a 35-day window. The first fall frost falls between October 21 and November 17.
- The median last frost is the same as the Oklahoma median of Apr 4.
- Its 212-day growing season is longer than 52% 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 72 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 16 |
| 50% (median) | April 4 |
| 10% (safe for tender plants) | April 20 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 21 |
| 50% (median) | November 2 |
| 90% (late) | November 17 |
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 73173 — Oklahoma City, OK — last frost Apr 4, first frost Nov 2, zone 7b. whenisthelastfrost.com
When to plant vegetables in Oklahoma City, OK
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 10 – Jan 24 | Mar 7 – Mar 21 | — | — |
| Peppers | Jan 24 – Feb 7 | Apr 18 – May 2 | — | — |
| Eggplant | Jan 24 – Feb 7 | Apr 18 – May 2 | — | — |
| Tomatoes | Feb 7 – Feb 21 | Apr 11 – Apr 25 | — | — |
| Lettuce | Feb 7 – Feb 21 | Mar 14 – Mar 28 | Mar 7 – Apr 11 | Sep 7 – Oct 5 |
| Kale | Feb 7 – Feb 21 | Mar 7 – Mar 21 | Mar 7 – Mar 21 | Aug 24 – Sep 14 |
| Broccoli | Feb 7 – Feb 21 | Mar 21 – Apr 4 | — | Jul 27 – Aug 17 |
| Cabbage | Feb 7 – Feb 21 | Mar 14 – Mar 28 | — | Jul 27 – Aug 17 |
| Cauliflower | Feb 7 – Feb 21 | Mar 21 – Apr 4 | — | Jul 27 – Aug 17 |
| Okra | Feb 21 – Mar 7 | Apr 25 – May 9 | Apr 25 – May 9 | — |
| Basil | Feb 21 – Mar 7 | Apr 11 – Apr 25 | — | — |
| Peas | — | — | Feb 21 – Mar 14 | Aug 10 – Aug 31 |
| Spinach | — | — | Feb 21 – Mar 14 | Sep 7 – Sep 28 |
| Radishes | — | — | Feb 28 – Apr 11 | Sep 21 – Oct 12 |
| Cucumbers | Mar 7 – Mar 14 | Apr 18 – Apr 25 | Apr 11 – Apr 25 | Aug 17 – Aug 31 |
| Zucchini & Summer Squash | Mar 7 – Mar 14 | — | Apr 11 – Apr 25 | Aug 24 – Sep 7 |
| Winter Squash & Pumpkins | Mar 7 – Mar 14 | — | Apr 11 – Apr 25 | — |
| Melons & Watermelon | Mar 7 – Mar 14 | Apr 18 – May 2 | — | — |
| Carrots | — | — | Mar 14 – Apr 11 | Aug 10 – Aug 24 |
| Beets | — | — | Mar 14 – Apr 11 | Aug 24 – Sep 7 |
| Potatoes | — | — | Mar 14 – Apr 4 | — |
| Swiss Chard | — | — | Mar 21 – Apr 18 | Aug 24 – Sep 7 |
| Cilantro | — | — | Mar 21 – Apr 11 | Sep 7 – Sep 28 |
| Green Beans | — | — | Apr 11 – May 2 | Aug 17 – Aug 31 |
| Sweet Corn | — | — | Apr 11 – Apr 25 | — |
| Sweet Potatoes | — | Apr 18 – May 9 | — | — |
| Garlic | — | — | — | Oct 19 – Nov 23 |
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 Oklahoma City Will Rogers Ap, OK weather station, 6 km away (elevation 1,286 ft (392 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
- Wheatland Apr 4 · Nov 2
- Mustang Apr 4 · Nov 2
- Newcastle Mar 31 · Nov 5
- Tuttle Apr 3 · Nov 4
- Bethany Apr 2 · Nov 4
- Yukon Apr 2 · Nov 4
- Norman Apr 3 · Nov 3
- Blanchard Apr 3 · Nov 4
Frequently asked questions
When is the last frost in Oklahoma City, OK?
The median last spring frost in Oklahoma City, OK is April 4. There is still about a 10% chance of frost after April 20, 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 2, with about a 10% chance of frost before October 21.
How long is the growing season in Oklahoma City, OK?
About 212 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.