Frost dates for 64499Worth, MO
The average last spring frost in Worth is April 20 and the average first fall frost is October 19, giving a typical growing season of about 181 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 20
- Average first fall frost
- Oct 19
- Growing season
- 181 days
Safer after May 6 (1-in-10 risk)
Possible by Oct 4 (1-in-10 risk)
Last frost typically in 177 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 16 · May 1 · May 15 | Sep 24 · Oct 8 · Oct 22 | 160 days | 100% |
| Frost / freeze (32°F) | Apr 5 · Apr 20 · May 6 | Oct 4 · Oct 19 · Oct 31 | 181 days | 100% |
| Hard freeze (28°F) | Mar 25 · Apr 9 · Apr 24 | Oct 16 · Oct 28 · Nov 9 | 203 days | 100% |
Planting calendar for Worth
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 20 – May 26 |
| Tomatoes | Transplant outdoors | May 6 – Jun 29 |
| Peppers | Start seeds indoors | Mar 20 – Apr 20 |
| Peppers | Transplant outdoors | May 20 – Jun 20 |
| Eggplant | Start seeds indoors | Apr 6 – May 5 |
| Eggplant | Transplant outdoors | May 20 – Jun 20 |
| Cucumbers | Sow outdoors | May 20 – Jul 9 |
| Summer squash | Sow outdoors | May 6 – Jun 20 |
| Winter squash & pumpkins | Sow outdoors | May 20 – Jun 20 |
| Snap beans | Sow outdoors | May 6 – Aug 1 |
| Sweet corn | Sow outdoors | May 6 – Jun 29 |
| Watermelon & cantaloupe | Sow outdoors | May 20 – Jun 20 |
| Okra | Sow outdoors | May 13 – Jun 5 |
| Peas | Sow outdoors (spring) | Mar 20 – May 5 |
| Potatoes | Plant outdoors (spring) | Mar 20 – May 20 |
| Onions | Start seeds indoors (spring) | Feb 6 – Mar 5 |
| Onions | Transplant outdoors (spring) | Apr 6 – May 5 |
| Broccoli | Start seeds indoors (spring) | Mar 2 – Apr 5 |
| Broccoli | Transplant outdoors (spring) | Apr 6 – May 5 |
| Broccoli | Start seeds indoors (fall) | Jun 19 – Jun 29 |
| Broccoli | Transplant outdoors (fall) | Jul 19 – Jul 30 |
| Cabbage | Start seeds indoors (spring) | Feb 20 – Mar 20 |
| Cabbage | Transplant outdoors (spring) | Mar 20 – Apr 20 |
| Cabbage | Start seeds indoors (fall) | Jun 9 – Jul 9 |
| Cabbage | Transplant outdoors (fall) | Jul 9 – Aug 9 |
| Leaf lettuce | Sow outdoors (spring) | Mar 20 – Jun 5 |
| Leaf lettuce | Sow outdoors (fall) | Jul 9 – Aug 25 |
| Spinach | Sow outdoors (spring) | Mar 13 – Apr 26 |
| Spinach | Sow outdoors (fall) | Jul 26 – Aug 30 |
| Radishes | Sow outdoors (spring) | Mar 20 – May 10 |
| Radishes | Sow outdoors (fall) | Jul 9 – Sep 9 |
| Kale | Sow outdoors (spring) | Apr 6 – Apr 26 |
| Kale | Sow outdoors (fall) | Jul 2 – Aug 9 |
| Carrots | Sow outdoors (spring) | Apr 20 – Jun 5 |
| Carrots | Sow outdoors (fall) | Jun 9 – Jul 25 |
| Garlic | Plant outdoors (fall) | Oct 9 – Nov 9 |
Where these dates come from
ZIP code 64499 is matched to the NOAA station Grant City 5Wsw, MO, 9.2 km away, at 1,089 ft elevation (177 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Grant City 5Wsw, MO (used) | 1,089 ft | Apr 20 | Oct 19 |
| Grant City, MO | 1,130 ft | Apr 24 | Oct 14 |
| Albany, MO | 875 ft | Apr 17 | Oct 21 |
| Conception, MO | 1,108 ft | Apr 17 | Oct 20 |
Frost dates near Worth
- Gentry, MO 64453 · last Apr 17, first Oct 21
- Grant City, MO 64456 · last Apr 24, first Oct 14
- Denver, MO 64441 · last Apr 16, first Oct 22
- Sheridan, MO 64486 · last Apr 20, first Oct 19
- Allendale, MO 64420 · last Apr 25, first Oct 12
- Parnell, MO 64475 · last Apr 19, first Oct 17
- Albany, MO 64402 · last Apr 17, first Oct 21
- Stanberry, MO 64489 · last Apr 17, first Oct 20
Frequently asked questions
- When is the last frost in Worth, MO?
- For ZIP code 64499, the average last spring frost (32°F) is April 20, based on NOAA 1991-2020 climate normals for the Grant City 5Wsw, MO weather station. There is a 1-in-10 chance of a frost after May 6.
- When is the first frost in Worth, MO?
- The average first fall frost (32°F) is October 19. There is a 1-in-10 chance of frost by October 4, so tender plants are at risk from that point on.
- How long is the growing season in 64499?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 181 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.