Frost dates for 64030Grandview, MO
The average last spring frost in Grandview is April 7 and the average first fall frost is October 29, giving a typical growing season of about 202 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 7
- Average first fall frost
- Oct 29
- Growing season
- 202 days
Safer after Apr 24 (1-in-10 risk)
Possible by Oct 14 (1-in-10 risk)
First frost typically in 2 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 19 · May 4 | Oct 2 · Oct 19 · Nov 1 | 182 days | 100% |
| Frost / freeze (32°F) | Mar 21 · Apr 7 · Apr 24 | Oct 14 · Oct 29 · Nov 12 | 202 days | 100% |
| Hard freeze (28°F) | Mar 10 · Mar 28 · Apr 11 | Oct 24 · Nov 7 · Nov 24 | 224 days | 100% |
Planting calendar for Grandview
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 9 |
| 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 19 |
| Summer squash | Sow outdoors | Apr 23 – Jun 7 |
| Winter squash & pumpkins | Sow outdoors | May 7 – Jun 7 |
| Snap beans | Sow outdoors | Apr 23 – Aug 11 |
| Sweet corn | Sow outdoors | Apr 23 – Jul 9 |
| 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) | Jun 29 – Jul 9 |
| Broccoli | Transplant outdoors (fall) | Jul 29 – Aug 9 |
| Cabbage | Start seeds indoors (spring) | Feb 7 – Mar 7 |
| Cabbage | Transplant outdoors (spring) | Mar 7 – Apr 7 |
| Cabbage | Start seeds indoors (fall) | Jun 19 – Jul 19 |
| Cabbage | Transplant outdoors (fall) | Jul 19 – Aug 19 |
| Leaf lettuce | Sow outdoors (spring) | Mar 7 – May 23 |
| Leaf lettuce | Sow outdoors (fall) | Jul 19 – Sep 4 |
| Spinach | Sow outdoors (spring) | Feb 28 – Apr 13 |
| Spinach | Sow outdoors (fall) | Aug 5 – Sep 9 |
| Radishes | Sow outdoors (spring) | Mar 7 – Apr 27 |
| Radishes | Sow outdoors (fall) | Jul 19 – Sep 19 |
| Kale | Sow outdoors (spring) | Mar 24 – Apr 13 |
| Kale | Sow outdoors (fall) | Jul 12 – Aug 19 |
| Carrots | Sow outdoors (spring) | Apr 7 – May 23 |
| Carrots | Sow outdoors (fall) | Jun 19 – Aug 4 |
| Garlic | Plant outdoors (fall) | Oct 19 – Nov 19 |
Where these dates come from
ZIP code 64030 is matched to the NOAA station Lees Summit Muni Ap, MO, 15.5 km away, at 997 ft elevation (6 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Lees Summit Muni Ap, MO (used) | 997 ft | Apr 7 | Oct 29 |
| Lees Summit Reed Wr, MO | 1,000 ft | Apr 13 | Oct 26 |
| Olathe Johnson Co Exec Ap, KS | 1,070 ft | Apr 8 | Oct 29 |
| Olathe 3E, KS | 1,055 ft | Apr 10 | Oct 29 |
Frost dates near Grandview
- Kansas City, MO 64147 · last Apr 8, first Oct 29
- Belton, MO 64012 · last Apr 8, first Oct 29
- Overland Park, KS 66224 · last Apr 8, first Oct 29
- Lees Summit, MO 64081 · last Apr 7, first Oct 29
- Raymore, MO 64083 · last Apr 13, first Oct 26
- Leawood, KS 66206 · last Apr 10, first Oct 29
- Prairie Village, KS 66208 · last Apr 10, first Oct 29
- Stilwell, KS 66085 · last Apr 8, first Oct 29
Frequently asked questions
- When is the last frost in Grandview, MO?
- For ZIP code 64030, the average last spring frost (32°F) is April 7, based on NOAA 1991-2020 climate normals for the Lees Summit Muni Ap, MO weather station. There is a 1-in-10 chance of a frost after April 24.
- When is the first frost in Grandview, MO?
- The average first fall frost (32°F) is October 29. There is a 1-in-10 chance of frost by October 14, so tender plants are at risk from that point on.
- How long is the growing season in 64030?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 202 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.