Frost dates for 64640Gallatin, MO
The average last spring frost in Gallatin is April 19 and the average first fall frost is October 21, giving a typical growing season of about 184 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 19
- Average first fall frost
- Oct 21
- Growing season
- 184 days
Safer after May 4 (1-in-10 risk)
Possible by Oct 6 (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 15 · Apr 30 · May 14 | Sep 25 · Oct 9 · Oct 23 | 163 days | 100% |
| Frost / freeze (32°F) | Apr 5 · Apr 19 · May 4 | Oct 6 · Oct 21 · Nov 1 | 184 days | 100% |
| Hard freeze (28°F) | Mar 22 · Apr 7 · Apr 23 | Oct 16 · Oct 30 · Nov 11 | 203 days | 100% |
Planting calendar for Gallatin
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 19 – May 25 |
| Tomatoes | Transplant outdoors | May 5 – Jul 1 |
| Peppers | Start seeds indoors | Mar 19 – Apr 19 |
| Peppers | Transplant outdoors | May 19 – Jun 19 |
| Eggplant | Start seeds indoors | Apr 5 – May 4 |
| Eggplant | Transplant outdoors | May 19 – Jun 19 |
| Cucumbers | Sow outdoors | May 19 – Jul 11 |
| Summer squash | Sow outdoors | May 5 – Jun 19 |
| Winter squash & pumpkins | Sow outdoors | May 19 – Jun 19 |
| Snap beans | Sow outdoors | May 5 – Aug 3 |
| Sweet corn | Sow outdoors | May 5 – Jul 1 |
| Watermelon & cantaloupe | Sow outdoors | May 19 – Jun 19 |
| Okra | Sow outdoors | May 12 – Jun 4 |
| Peas | Sow outdoors (spring) | Mar 19 – May 4 |
| Potatoes | Plant outdoors (spring) | Mar 19 – May 19 |
| Onions | Start seeds indoors (spring) | Feb 5 – Mar 4 |
| Onions | Transplant outdoors (spring) | Apr 5 – May 4 |
| Broccoli | Start seeds indoors (spring) | Mar 1 – Apr 4 |
| Broccoli | Transplant outdoors (spring) | Apr 5 – May 4 |
| Broccoli | Start seeds indoors (fall) | Jun 21 – Jul 1 |
| Broccoli | Transplant outdoors (fall) | Jul 21 – Aug 1 |
| Cabbage | Start seeds indoors (spring) | Feb 19 – Mar 19 |
| Cabbage | Transplant outdoors (spring) | Mar 19 – Apr 19 |
| Cabbage | Start seeds indoors (fall) | Jun 11 – Jul 11 |
| Cabbage | Transplant outdoors (fall) | Jul 11 – Aug 11 |
| Leaf lettuce | Sow outdoors (spring) | Mar 19 – Jun 4 |
| Leaf lettuce | Sow outdoors (fall) | Jul 11 – Aug 27 |
| Spinach | Sow outdoors (spring) | Mar 12 – Apr 25 |
| Spinach | Sow outdoors (fall) | Jul 28 – Sep 1 |
| Radishes | Sow outdoors (spring) | Mar 19 – May 9 |
| Radishes | Sow outdoors (fall) | Jul 11 – Sep 11 |
| Kale | Sow outdoors (spring) | Apr 5 – Apr 25 |
| Kale | Sow outdoors (fall) | Jul 4 – Aug 11 |
| Carrots | Sow outdoors (spring) | Apr 19 – Jun 4 |
| Carrots | Sow outdoors (fall) | Jun 11 – Jul 27 |
| Garlic | Plant outdoors (fall) | Oct 11 – Nov 11 |
Where these dates come from
ZIP code 64640 is matched to the NOAA station Gallatin 1W, MO, 1 km away, at 921 ft elevation (9 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Gallatin 1W, MO (used) | 921 ft | Apr 19 | Oct 21 |
| Hamilton 2W, MO | 900 ft | Apr 23 | Oct 17 |
| Cameron, MO | 1,010 ft | Apr 15 | Oct 24 |
| Amity 4 Ne, MO | 974 ft | Apr 19 | Oct 19 |
Frost dates near Gallatin
- Altamont, MO 64620 · last Apr 19, first Oct 21
- Jameson, MO 64647 · last Apr 19, first Oct 21
- Winston, MO 64689 · last Apr 19, first Oct 19
- Kidder, MO 64649 · last Apr 23, first Oct 17
- Lock Springs, MO 64654 · last Apr 15, first Oct 21
- Hamilton, MO 64644 · last Apr 23, first Oct 17
- Jamesport, MO 64648 · last Apr 19, first Oct 21
- Pattonsburg, MO 64670 · last Apr 19, first Oct 21
Frequently asked questions
- When is the last frost in Gallatin, MO?
- For ZIP code 64640, the average last spring frost (32°F) is April 19, based on NOAA 1991-2020 climate normals for the Gallatin 1W, MO weather station. There is a 1-in-10 chance of a frost after May 4.
- When is the first frost in Gallatin, MO?
- The average first fall frost (32°F) is October 21. There is a 1-in-10 chance of frost by October 6, so tender plants are at risk from that point on.
- How long is the growing season in 64640?
- 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.