Frost dates for 63860Kewanee, MO
The average last spring frost in Kewanee is March 26 and the average first fall frost is November 6, giving a typical growing season of about 225 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 26
- Average first fall frost
- Nov 6
- Growing season
- 225 days
Safer after Apr 9 (1-in-10 risk)
Possible by Oct 21 (1-in-10 risk)
First frost typically in 5 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) | Mar 20 · Apr 4 · Apr 21 | Oct 14 · Oct 26 · Nov 8 | 205 days | 100% |
| Frost / freeze (32°F) | Mar 8 · Mar 26 · Apr 9 | Oct 21 · Nov 6 · Nov 25 | 225 days | 100% |
| Hard freeze (28°F) | Feb 26 · Mar 14 · Mar 31 | Nov 1 · Nov 19 · Dec 10 | 248 days | 100% |
Planting calendar for Kewanee
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 | Feb 23 – May 1 |
| Tomatoes | Transplant outdoors | Apr 11 – Jul 17 |
| Peppers | Start seeds indoors | Feb 23 – Mar 26 |
| Peppers | Transplant outdoors | Apr 25 – May 26 |
| Eggplant | Start seeds indoors | Mar 12 – Apr 10 |
| Eggplant | Transplant outdoors | Apr 25 – May 26 |
| Cucumbers | Sow outdoors | Apr 25 – Jul 27 |
| Summer squash | Sow outdoors | Apr 11 – May 26 |
| Winter squash & pumpkins | Sow outdoors | Apr 25 – May 26 |
| Snap beans | Sow outdoors | Apr 11 – Aug 19 |
| Sweet corn | Sow outdoors | Apr 11 – Jul 17 |
| Watermelon & cantaloupe | Sow outdoors | Apr 25 – May 26 |
| Okra | Sow outdoors | Apr 18 – May 11 |
| Peas | Sow outdoors (spring) | Feb 23 – Apr 10 |
| Potatoes | Plant outdoors (spring) | Feb 23 – Apr 25 |
| Onions | Start seeds indoors (spring) | Jan 12 – Feb 8 |
| Onions | Transplant outdoors (spring) | Mar 12 – Apr 10 |
| Broccoli | Start seeds indoors (spring) | Feb 5 – Mar 11 |
| Broccoli | Transplant outdoors (spring) | Mar 12 – Apr 10 |
| Broccoli | Start seeds indoors (fall) | Jul 7 – Jul 17 |
| Broccoli | Transplant outdoors (fall) | Aug 6 – Aug 17 |
| Cabbage | Start seeds indoors (spring) | Jan 26 – Feb 23 |
| Cabbage | Transplant outdoors (spring) | Feb 23 – Mar 26 |
| Cabbage | Start seeds indoors (fall) | Jun 27 – Jul 27 |
| Cabbage | Transplant outdoors (fall) | Jul 27 – Aug 27 |
| Leaf lettuce | Sow outdoors (spring) | Feb 23 – May 11 |
| Leaf lettuce | Sow outdoors (fall) | Jul 27 – Sep 12 |
| Spinach | Sow outdoors (spring) | Feb 16 – Apr 1 |
| Spinach | Sow outdoors (fall) | Aug 13 – Sep 17 |
| Radishes | Sow outdoors (spring) | Feb 23 – Apr 15 |
| Radishes | Sow outdoors (fall) | Jul 27 – Sep 27 |
| Kale | Sow outdoors (spring) | Mar 12 – Apr 1 |
| Kale | Sow outdoors (fall) | Jul 20 – Aug 27 |
| Carrots | Sow outdoors (spring) | Mar 26 – May 11 |
| Carrots | Sow outdoors (fall) | Jun 27 – Aug 12 |
| Garlic | Plant outdoors (fall) | Oct 27 – Nov 27 |
Where these dates come from
ZIP code 63860 is matched to the NOAA station Sikeston Pwr Stn, MO, 23.4 km away, at 310 ft elevation (2 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Sikeston Pwr Stn, MO (used) | 310 ft | Mar 26 | Nov 6 |
| New Madrid, MO | 302 ft | Mar 28 | Nov 3 |
| Portageville, MO | 280 ft | Mar 25 | Nov 7 |
| Samburg Wr, TN | 310 ft | Apr 3 | Nov 1 |
Frost dates near Kewanee
- Matthews, MO 63867 · last Mar 26, first Nov 6
- New Madrid, MO 63869 · last Mar 28, first Nov 3
- Lilbourn, MO 63862 · last Mar 25, first Nov 7
- Canalou, MO 63828 · last Mar 26, first Nov 6
- Marston, MO 63866 · last Mar 25, first Nov 7
- Catron, MO 63833 · last Mar 29, first Nov 3
- East Prairie, MO 63845 · last Mar 26, first Nov 6
- Morehouse, MO 63868 · last Mar 26, first Nov 6
Frequently asked questions
- When is the last frost in Kewanee, MO?
- For ZIP code 63860, the average last spring frost (32°F) is March 26, based on NOAA 1991-2020 climate normals for the Sikeston Pwr Stn, MO weather station. There is a 1-in-10 chance of a frost after April 9.
- When is the first frost in Kewanee, MO?
- The average first fall frost (32°F) is November 6. There is a 1-in-10 chance of frost by October 21, so tender plants are at risk from that point on.
- How long is the growing season in 63860?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 225 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.