Frost dates for 64723Amsterdam, MO
The average last spring frost in Amsterdam is April 12 and the average first fall frost is October 23, giving a typical growing season of about 192 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 12
- Average first fall frost
- Oct 23
- Growing season
- 192 days
Safer after Apr 28 (1-in-10 risk)
Possible by Oct 9 (1-in-10 risk)
Last frost typically in 167 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 8 · Apr 23 · May 6 | Sep 28 · Oct 13 · Oct 26 | 172 days | 100% |
| Frost / freeze (32°F) | Mar 28 · Apr 12 · Apr 28 | Oct 9 · Oct 23 · Nov 4 | 192 days | 100% |
| Hard freeze (28°F) | Mar 15 · Apr 2 · Apr 17 | Oct 18 · Nov 1 · Nov 14 | 212 days | 100% |
Planting calendar for Amsterdam
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 12 – May 18 |
| Tomatoes | Transplant outdoors | Apr 28 – Jul 3 |
| Peppers | Start seeds indoors | Mar 12 – Apr 12 |
| Peppers | Transplant outdoors | May 12 – Jun 12 |
| Eggplant | Start seeds indoors | Mar 29 – Apr 27 |
| Eggplant | Transplant outdoors | May 12 – Jun 12 |
| Cucumbers | Sow outdoors | May 12 – Jul 13 |
| Summer squash | Sow outdoors | Apr 28 – Jun 12 |
| Winter squash & pumpkins | Sow outdoors | May 12 – Jun 12 |
| Snap beans | Sow outdoors | Apr 28 – Aug 5 |
| Sweet corn | Sow outdoors | Apr 28 – Jul 3 |
| Watermelon & cantaloupe | Sow outdoors | May 12 – Jun 12 |
| Okra | Sow outdoors | May 5 – May 28 |
| Peas | Sow outdoors (spring) | Mar 12 – Apr 27 |
| Potatoes | Plant outdoors (spring) | Mar 12 – May 12 |
| Onions | Start seeds indoors (spring) | Jan 29 – Feb 25 |
| Onions | Transplant outdoors (spring) | Mar 29 – Apr 27 |
| Broccoli | Start seeds indoors (spring) | Feb 22 – Mar 28 |
| Broccoli | Transplant outdoors (spring) | Mar 29 – Apr 27 |
| Broccoli | Start seeds indoors (fall) | Jun 23 – Jul 3 |
| Broccoli | Transplant outdoors (fall) | Jul 23 – Aug 3 |
| Cabbage | Start seeds indoors (spring) | Feb 12 – Mar 12 |
| Cabbage | Transplant outdoors (spring) | Mar 12 – Apr 12 |
| Cabbage | Start seeds indoors (fall) | Jun 13 – Jul 13 |
| Cabbage | Transplant outdoors (fall) | Jul 13 – Aug 13 |
| Leaf lettuce | Sow outdoors (spring) | Mar 12 – May 28 |
| Leaf lettuce | Sow outdoors (fall) | Jul 13 – Aug 29 |
| Spinach | Sow outdoors (spring) | Mar 5 – Apr 18 |
| Spinach | Sow outdoors (fall) | Jul 30 – Sep 3 |
| Radishes | Sow outdoors (spring) | Mar 12 – May 2 |
| Radishes | Sow outdoors (fall) | Jul 13 – Sep 13 |
| Kale | Sow outdoors (spring) | Mar 29 – Apr 18 |
| Kale | Sow outdoors (fall) | Jul 6 – Aug 13 |
| Carrots | Sow outdoors (spring) | Apr 12 – May 28 |
| Carrots | Sow outdoors (fall) | Jun 13 – Jul 29 |
| Garlic | Plant outdoors (fall) | Oct 13 – Nov 13 |
Where these dates come from
ZIP code 64723 is matched to the NOAA station Butler 4W, MO, 21.1 km away, at 790 ft elevation (79 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Butler 4W, MO (used) | 790 ft | Apr 12 | Oct 23 |
| Paola, KS | 860 ft | Apr 13 | Oct 21 |
| Mound City, KS | 840 ft | Apr 13 | Oct 23 |
| Osawatomie, KS | 860 ft | Apr 14 | Oct 25 |
Frost dates near Amsterdam
- Drexel, MO 64742 · last Apr 9, first Oct 31
- Amoret, MO 64722 · last Apr 12, first Oct 23
- Adrian, MO 64720 · last Apr 12, first Oct 23
- Archie, MO 64725 · last Apr 12, first Oct 23
- Louisburg, KS 66053 · last Apr 9, first Oct 31
- Fontana, KS 66026 · last Apr 13, first Oct 21
- Foster, MO 64745 · last Apr 12, first Oct 23
- Pleasanton, KS 66075 · last Apr 13, first Oct 23
Frequently asked questions
- When is the last frost in Amsterdam, MO?
- For ZIP code 64723, the average last spring frost (32°F) is April 12, based on NOAA 1991-2020 climate normals for the Butler 4W, MO weather station. There is a 1-in-10 chance of a frost after April 28.
- When is the first frost in Amsterdam, MO?
- The average first fall frost (32°F) is October 23. There is a 1-in-10 chance of frost by October 9, so tender plants are at risk from that point on.
- How long is the growing season in 64723?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 192 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.