Frost dates for 73527Cache, OK
The average last spring frost in Cache is April 7 and the average first fall frost is November 2, giving a typical growing season of about 205 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 7
- Average first fall frost
- Nov 2
- Growing season
- 205 days
Safer after Apr 24 (1-in-10 risk)
Possible by Oct 17 (1-in-10 risk)
Last frost typically in 155 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | Apr 3 · Apr 17 · Apr 30 | Oct 10 · Oct 23 · Nov 6 | 188 days | 100% |
| Frost / freeze (32°F) | Mar 21 · Apr 7 · Apr 24 | Oct 17 · Nov 2 · Nov 16 | 205 days | 100% |
| Hard freeze (28°F) | Mar 5 · Mar 26 · Apr 14 | Oct 23 · Nov 9 · Nov 27 | 229 days | 100% |
Planting calendar for Cache
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Mar 7 – May 13 |
| Tomatoes | Transplant outdoors | Apr 23 – Jul 13 |
| Peppers | Start seeds indoors | Mar 7 – Apr 7 |
| Peppers | Transplant outdoors | May 7 – Jun 7 |
| Eggplant | Start seeds indoors | Mar 24 – Apr 22 |
| Eggplant | Transplant outdoors | May 7 – Jun 7 |
| Cucumbers | Sow outdoors | May 7 – Jul 23 |
| Summer squash | Sow outdoors | Apr 23 – Jun 7 |
| Winter squash & pumpkins | Sow outdoors | May 7 – Jun 7 |
| Snap beans | Sow outdoors | Apr 23 – Aug 15 |
| Sweet corn | Sow outdoors | Apr 23 – Jul 13 |
| Watermelon & cantaloupe | Sow outdoors | May 7 – Jun 7 |
| Okra | Sow outdoors | Apr 30 – May 23 |
| Peas | Sow outdoors (spring) | Mar 7 – Apr 22 |
| Potatoes | Plant outdoors (spring) | Mar 7 – May 7 |
| Onions | Start seeds indoors (spring) | Jan 24 – Feb 20 |
| Onions | Transplant outdoors (spring) | Mar 24 – Apr 22 |
| Broccoli | Start seeds indoors (spring) | Feb 17 – Mar 23 |
| Broccoli | Transplant outdoors (spring) | Mar 24 – Apr 22 |
| Broccoli | Start seeds indoors (fall) | Jul 3 – Jul 13 |
| Broccoli | Transplant outdoors (fall) | Aug 2 – Aug 13 |
| Cabbage | Start seeds indoors (spring) | Feb 7 – Mar 7 |
| Cabbage | Transplant outdoors (spring) | Mar 7 – Apr 7 |
| Cabbage | Start seeds indoors (fall) | Jun 23 – Jul 23 |
| Cabbage | Transplant outdoors (fall) | Jul 23 – Aug 23 |
| Leaf lettuce | Sow outdoors (spring) | Mar 7 – May 23 |
| Leaf lettuce | Sow outdoors (fall) | Jul 23 – Sep 8 |
| Spinach | Sow outdoors (spring) | Feb 28 – Apr 13 |
| Spinach | Sow outdoors (fall) | Aug 9 – Sep 13 |
| Radishes | Sow outdoors (spring) | Mar 7 – Apr 27 |
| Radishes | Sow outdoors (fall) | Jul 23 – Sep 23 |
| Kale | Sow outdoors (spring) | Mar 24 – Apr 13 |
| Kale | Sow outdoors (fall) | Jul 16 – Aug 23 |
| Carrots | Sow outdoors (spring) | Apr 7 – May 23 |
| Carrots | Sow outdoors (fall) | Jun 23 – Aug 8 |
| Garlic | Plant outdoors (fall) | Oct 23 – Nov 23 |
Where these dates come from
ZIP code 73527 is matched to the NOAA station Chattanooga, OK, 21.4 km away, at 1,148 ft elevation (82 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Chattanooga, OK (used) | 1,148 ft | Apr 7 | Nov 2 |
| Medicine Pk 3W Mesonet, OK | 1,597 ft | Mar 21 | Nov 12 |
| Lawton, OK | 1,150 ft | Mar 26 | Nov 7 |
| Wichita Mtn Wr, OK | 1,665 ft | Mar 28 | Nov 6 |
Frost dates near Cache
- Indiahoma, OK 73552 · last Mar 28, first Nov 6
- Lawton, OK 73506 · last Apr 1, first Nov 5
- Medicine Park, OK 73557 · last Apr 1, first Nov 5
- Faxon, OK 73540 · last Apr 7, first Nov 2
- Meers, OK 73558 · last Mar 28, first Nov 6
- Fort Sill, OK 73503 · last Apr 1, first Nov 5
- Chattanooga, OK 73528 · last Apr 7, first Nov 2
- Geronimo, OK 73543 · last Apr 1, first Nov 5
Frequently asked questions
- When is the last frost in Cache, OK?
- For ZIP code 73527, the average last spring frost (32°F) is April 7, based on NOAA 1991-2020 climate normals for the Chattanooga, OK weather station. There is a 1-in-10 chance of a frost after April 24.
- When is the first frost in Cache, OK?
- The average first fall frost (32°F) is November 2. There is a 1-in-10 chance of frost by October 17, so tender plants are at risk from that point on.
- How long is the growing season in 73527?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 205 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.