Frost dates for 63863Malden, MO
The average last spring frost in Malden is March 29 and the average first fall frost is November 3, giving a typical growing season of about 221 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 29
- Average first fall frost
- Nov 3
- Growing season
- 221 days
Safer after Apr 12 (1-in-10 risk)
Possible by Oct 23 (1-in-10 risk)
First frost typically in 1 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 25 · Apr 8 · Apr 24 | Oct 15 · Oct 26 · Nov 7 | 198 days | 100% |
| Frost / freeze (32°F) | Mar 12 · Mar 29 · Apr 12 | Oct 23 · Nov 3 · Nov 22 | 221 days | 100% |
| Hard freeze (28°F) | Feb 28 · Mar 17 · Apr 3 | Nov 1 · Nov 15 · Dec 3 | 243 days | 100% |
Planting calendar for Malden
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 26 – May 4 |
| Tomatoes | Transplant outdoors | Apr 14 – Jul 14 |
| Peppers | Start seeds indoors | Feb 26 – Mar 29 |
| Peppers | Transplant outdoors | Apr 28 – May 29 |
| Eggplant | Start seeds indoors | Mar 15 – Apr 13 |
| Eggplant | Transplant outdoors | Apr 28 – May 29 |
| Cucumbers | Sow outdoors | Apr 28 – Jul 24 |
| Summer squash | Sow outdoors | Apr 14 – May 29 |
| Winter squash & pumpkins | Sow outdoors | Apr 28 – May 29 |
| Snap beans | Sow outdoors | Apr 14 – Aug 16 |
| Sweet corn | Sow outdoors | Apr 14 – Jul 14 |
| Watermelon & cantaloupe | Sow outdoors | Apr 28 – May 29 |
| Okra | Sow outdoors | Apr 21 – May 14 |
| Peas | Sow outdoors (spring) | Feb 26 – Apr 13 |
| Potatoes | Plant outdoors (spring) | Feb 26 – Apr 28 |
| Onions | Start seeds indoors (spring) | Jan 15 – Feb 11 |
| Onions | Transplant outdoors (spring) | Mar 15 – Apr 13 |
| Broccoli | Start seeds indoors (spring) | Feb 8 – Mar 14 |
| Broccoli | Transplant outdoors (spring) | Mar 15 – Apr 13 |
| Broccoli | Start seeds indoors (fall) | Jul 4 – Jul 14 |
| Broccoli | Transplant outdoors (fall) | Aug 3 – Aug 14 |
| Cabbage | Start seeds indoors (spring) | Jan 29 – Feb 26 |
| Cabbage | Transplant outdoors (spring) | Feb 26 – Mar 29 |
| Cabbage | Start seeds indoors (fall) | Jun 24 – Jul 24 |
| Cabbage | Transplant outdoors (fall) | Jul 24 – Aug 24 |
| Leaf lettuce | Sow outdoors (spring) | Feb 26 – May 14 |
| Leaf lettuce | Sow outdoors (fall) | Jul 24 – Sep 9 |
| Spinach | Sow outdoors (spring) | Feb 19 – Apr 4 |
| Spinach | Sow outdoors (fall) | Aug 10 – Sep 14 |
| Radishes | Sow outdoors (spring) | Feb 26 – Apr 18 |
| Radishes | Sow outdoors (fall) | Jul 24 – Sep 24 |
| Kale | Sow outdoors (spring) | Mar 15 – Apr 4 |
| Kale | Sow outdoors (fall) | Jul 17 – Aug 24 |
| Carrots | Sow outdoors (spring) | Mar 29 – May 14 |
| Carrots | Sow outdoors (fall) | Jun 24 – Aug 9 |
| Garlic | Plant outdoors (fall) | Oct 24 – Nov 24 |
Where these dates come from
ZIP code 63863 is matched to the NOAA station Malden Muni Ap, MO, 3.8 km away, at 290 ft elevation (1 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Malden Muni Ap, MO (used) | 290 ft | Mar 29 | Nov 3 |
| Portageville, MO | 280 ft | Mar 25 | Nov 7 |
| Poplar Bluff Muni Ap, MO | 327 ft | Mar 31 | Oct 31 |
| Kennett Radio Kboa, MO | 270 ft | Mar 31 | Nov 1 |
Frost dates near Malden
- Campbell, MO 63933 · last Mar 29, first Nov 3
- Bernie, MO 63822 · last Mar 29, first Nov 3
- Clarkton, MO 63837 · last Mar 29, first Nov 3
- Gideon, MO 63848 · last Mar 29, first Nov 3
- Parma, MO 63870 · last Mar 29, first Nov 3
- Risco, MO 63874 · last Mar 29, first Nov 3
- Gibson, MO 63847 · last Mar 29, first Nov 3
- Tallapoosa, MO 63878 · last Mar 25, first Nov 7
Frequently asked questions
- When is the last frost in Malden, MO?
- For ZIP code 63863, the average last spring frost (32°F) is March 29, based on NOAA 1991-2020 climate normals for the Malden Muni Ap, MO weather station. There is a 1-in-10 chance of a frost after April 12.
- When is the first frost in Malden, MO?
- The average first fall frost (32°F) is November 3. There is a 1-in-10 chance of frost by October 23, so tender plants are at risk from that point on.
- How long is the growing season in 63863?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 221 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.