Frost dates for 64449Fillmore, MO
The average last spring frost in Fillmore is April 16 and the average first fall frost is October 20, giving a typical growing season of about 186 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 16
- Average first fall frost
- Oct 20
- Growing season
- 186 days
Safer after Apr 30 (1-in-10 risk)
Possible by Oct 3 (1-in-10 risk)
Last frost typically in 172 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 10 · Apr 26 · May 7 | Sep 25 · Oct 10 · Oct 22 | 168 days | 100% |
| Frost / freeze (32°F) | Apr 2 · Apr 16 · Apr 30 | Oct 3 · Oct 20 · Nov 1 | 186 days | 100% |
| Hard freeze (28°F) | Mar 23 · Apr 6 · Apr 21 | Oct 14 · Oct 30 · Nov 12 | 205 days | 100% |
Planting calendar for Fillmore
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 16 – May 22 |
| Tomatoes | Transplant outdoors | May 2 – Jun 30 |
| Peppers | Start seeds indoors | Mar 16 – Apr 16 |
| Peppers | Transplant outdoors | May 16 – Jun 16 |
| Eggplant | Start seeds indoors | Apr 2 – May 1 |
| Eggplant | Transplant outdoors | May 16 – Jun 16 |
| Cucumbers | Sow outdoors | May 16 – Jul 10 |
| Summer squash | Sow outdoors | May 2 – Jun 16 |
| Winter squash & pumpkins | Sow outdoors | May 16 – Jun 16 |
| Snap beans | Sow outdoors | May 2 – Aug 2 |
| Sweet corn | Sow outdoors | May 2 – Jun 30 |
| Watermelon & cantaloupe | Sow outdoors | May 16 – Jun 16 |
| Okra | Sow outdoors | May 9 – Jun 1 |
| Peas | Sow outdoors (spring) | Mar 16 – May 1 |
| Potatoes | Plant outdoors (spring) | Mar 16 – May 16 |
| Onions | Start seeds indoors (spring) | Feb 2 – Mar 1 |
| Onions | Transplant outdoors (spring) | Apr 2 – May 1 |
| Broccoli | Start seeds indoors (spring) | Feb 26 – Apr 1 |
| Broccoli | Transplant outdoors (spring) | Apr 2 – May 1 |
| Broccoli | Start seeds indoors (fall) | Jun 20 – Jun 30 |
| Broccoli | Transplant outdoors (fall) | Jul 20 – Jul 31 |
| Cabbage | Start seeds indoors (spring) | Feb 16 – Mar 16 |
| Cabbage | Transplant outdoors (spring) | Mar 16 – Apr 16 |
| Cabbage | Start seeds indoors (fall) | Jun 10 – Jul 10 |
| Cabbage | Transplant outdoors (fall) | Jul 10 – Aug 10 |
| Leaf lettuce | Sow outdoors (spring) | Mar 16 – Jun 1 |
| Leaf lettuce | Sow outdoors (fall) | Jul 10 – Aug 26 |
| Spinach | Sow outdoors (spring) | Mar 9 – Apr 22 |
| Spinach | Sow outdoors (fall) | Jul 27 – Aug 31 |
| Radishes | Sow outdoors (spring) | Mar 16 – May 6 |
| Radishes | Sow outdoors (fall) | Jul 10 – Sep 10 |
| Kale | Sow outdoors (spring) | Apr 2 – Apr 22 |
| Kale | Sow outdoors (fall) | Jul 3 – Aug 10 |
| Carrots | Sow outdoors (spring) | Apr 16 – Jun 1 |
| Carrots | Sow outdoors (fall) | Jun 10 – Jul 26 |
| Garlic | Plant outdoors (fall) | Oct 10 – Nov 10 |
Where these dates come from
ZIP code 64449 is matched to the NOAA station Oregon, MO, 16.7 km away, at 1,058 ft elevation (139 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Oregon, MO (used) | 1,058 ft | Apr 16 | Oct 20 |
| Troy 3N, KS | 1,040 ft | Apr 19 | Oct 19 |
| St Joseph Rosecrans Ap, MO | 818 ft | Apr 19 | Oct 17 |
| Cosby 2W, MO | 910 ft | Apr 17 | Oct 19 |
Frost dates near Fillmore
- Rosendale, MO 64483 · last Apr 16, first Oct 20
- Bolckow, MO 64427 · last Apr 17, first Oct 20
- Amazonia, MO 64421 · last Apr 19, first Oct 19
- Oregon, MO 64473 · last Apr 16, first Oct 20
- Savannah, MO 64485 · last Apr 19, first Oct 19
- Forest City, MO 64451 · last Apr 16, first Oct 20
- Graham, MO 64455 · last Apr 19, first Oct 17
- Rea, MO 64480 · last Apr 17, first Oct 20
Frequently asked questions
- When is the last frost in Fillmore, MO?
- For ZIP code 64449, the average last spring frost (32°F) is April 16, based on NOAA 1991-2020 climate normals for the Oregon, MO weather station. There is a 1-in-10 chance of a frost after April 30.
- When is the first frost in Fillmore, MO?
- The average first fall frost (32°F) is October 20. There is a 1-in-10 chance of frost by October 3, so tender plants are at risk from that point on.
- How long is the growing season in 64449?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 186 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.