Frost dates for 64653Linneus, MO
The average last spring frost in Linneus is April 15 and the average first fall frost is October 20, giving a typical growing season of about 184 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 15
- Average first fall frost
- Oct 20
- Growing season
- 184 days
Safer after May 2 (1-in-10 risk)
Possible by Oct 5 (1-in-10 risk)
Last frost typically in 164 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 11 · Apr 28 · May 13 | Sep 25 · Oct 9 · Oct 22 | 162 days | 100% |
| Frost / freeze (32°F) | Apr 1 · Apr 15 · May 2 | Oct 5 · Oct 20 · Nov 1 | 184 days | 100% |
| Hard freeze (28°F) | Mar 20 · Apr 5 · Apr 20 | Oct 16 · Oct 29 · Nov 12 | 207 days | 100% |
Planting calendar for Linneus
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 15 – May 21 |
| Tomatoes | Transplant outdoors | May 1 – Jun 30 |
| Peppers | Start seeds indoors | Mar 15 – Apr 15 |
| Peppers | Transplant outdoors | May 15 – Jun 15 |
| Eggplant | Start seeds indoors | Apr 1 – Apr 30 |
| Eggplant | Transplant outdoors | May 15 – Jun 15 |
| Cucumbers | Sow outdoors | May 15 – Jul 10 |
| Summer squash | Sow outdoors | May 1 – Jun 15 |
| Winter squash & pumpkins | Sow outdoors | May 15 – Jun 15 |
| Snap beans | Sow outdoors | May 1 – Aug 2 |
| Sweet corn | Sow outdoors | May 1 – Jun 30 |
| Watermelon & cantaloupe | Sow outdoors | May 15 – Jun 15 |
| Okra | Sow outdoors | May 8 – May 31 |
| Peas | Sow outdoors (spring) | Mar 15 – Apr 30 |
| Potatoes | Plant outdoors (spring) | Mar 15 – May 15 |
| Onions | Start seeds indoors (spring) | Feb 1 – Feb 28 |
| Onions | Transplant outdoors (spring) | Apr 1 – Apr 30 |
| Broccoli | Start seeds indoors (spring) | Feb 25 – Mar 31 |
| Broccoli | Transplant outdoors (spring) | Apr 1 – Apr 30 |
| Broccoli | Start seeds indoors (fall) | Jun 20 – Jun 30 |
| Broccoli | Transplant outdoors (fall) | Jul 20 – Jul 31 |
| Cabbage | Start seeds indoors (spring) | Feb 15 – Mar 15 |
| Cabbage | Transplant outdoors (spring) | Mar 15 – Apr 15 |
| Cabbage | Start seeds indoors (fall) | Jun 10 – Jul 10 |
| Cabbage | Transplant outdoors (fall) | Jul 10 – Aug 10 |
| Leaf lettuce | Sow outdoors (spring) | Mar 15 – May 31 |
| Leaf lettuce | Sow outdoors (fall) | Jul 10 – Aug 26 |
| Spinach | Sow outdoors (spring) | Mar 8 – Apr 21 |
| Spinach | Sow outdoors (fall) | Jul 27 – Aug 31 |
| Radishes | Sow outdoors (spring) | Mar 15 – May 5 |
| Radishes | Sow outdoors (fall) | Jul 10 – Sep 10 |
| Kale | Sow outdoors (spring) | Apr 1 – Apr 21 |
| Kale | Sow outdoors (fall) | Jul 3 – Aug 10 |
| Carrots | Sow outdoors (spring) | Apr 15 – May 31 |
| Carrots | Sow outdoors (fall) | Jun 10 – Jul 26 |
| Garlic | Plant outdoors (fall) | Oct 10 – Nov 10 |
Where these dates come from
ZIP code 64653 is matched to the NOAA station Chillicothe 22 Ene, MO, 6 km away, at 833 ft elevation (6 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Chillicothe 22 Ene, MO (used) | 833 ft | Apr 15 | Oct 20 |
| Linneus 3Se, MO | 814 ft | Apr 16 | Oct 20 |
| Brookfield, MO | 767 ft | Apr 14 | Oct 23 |
| Chillicothe 2S, MO | 780 ft | Apr 15 | Oct 21 |
Frost dates near Linneus
- Purdin, MO 64674 · last Apr 15, first Oct 20
- Browning, MO 64630 · last Apr 15, first Oct 20
- Laclede, MO 64651 · last Apr 16, first Oct 20
- Brookfield, MO 64628 · last Apr 14, first Oct 23
- Meadville, MO 64659 · last Apr 16, first Oct 20
- Wheeling, MO 64688 · last Apr 15, first Oct 21
- New Boston, MO 63557 · last Apr 15, first Oct 20
- Laredo, MO 64652 · last Apr 16, first Oct 20
Frequently asked questions
- When is the last frost in Linneus, MO?
- For ZIP code 64653, the average last spring frost (32°F) is April 15, based on NOAA 1991-2020 climate normals for the Chillicothe 22 Ene, MO weather station. There is a 1-in-10 chance of a frost after May 2.
- When is the first frost in Linneus, MO?
- The average first fall frost (32°F) is October 20. There is a 1-in-10 chance of frost by October 5, so tender plants are at risk from that point on.
- How long is the growing season in 64653?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 184 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.