Frost dates for 66728Crestline, KS
The average last spring frost in Crestline is April 5 and the average first fall frost is October 31, giving a typical growing season of about 208 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 5
- Average first fall frost
- Oct 31
- Growing season
- 208 days
Safer after Apr 22 (1-in-10 risk)
Possible by Oct 18 (1-in-10 risk)
First frost typically in 4 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) | Mar 31 · Apr 16 · May 3 | Oct 6 · Oct 21 · Nov 3 | 188 days | 100% |
| Frost / freeze (32°F) | Mar 19 · Apr 5 · Apr 22 | Oct 18 · Oct 31 · Nov 14 | 208 days | 100% |
| Hard freeze (28°F) | Mar 6 · Mar 25 · Apr 10 | Oct 26 · Nov 9 · Nov 28 | 228 days | 100% |
Planting calendar for Crestline
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 5 – May 11 |
| Tomatoes | Transplant outdoors | Apr 21 – Jul 11 |
| Peppers | Start seeds indoors | Mar 5 – Apr 5 |
| Peppers | Transplant outdoors | May 5 – Jun 5 |
| Eggplant | Start seeds indoors | Mar 22 – Apr 20 |
| Eggplant | Transplant outdoors | May 5 – Jun 5 |
| Cucumbers | Sow outdoors | May 5 – Jul 21 |
| Summer squash | Sow outdoors | Apr 21 – Jun 5 |
| Winter squash & pumpkins | Sow outdoors | May 5 – Jun 5 |
| Snap beans | Sow outdoors | Apr 21 – Aug 13 |
| Sweet corn | Sow outdoors | Apr 21 – Jul 11 |
| Watermelon & cantaloupe | Sow outdoors | May 5 – Jun 5 |
| Okra | Sow outdoors | Apr 28 – May 21 |
| Peas | Sow outdoors (spring) | Mar 5 – Apr 20 |
| Potatoes | Plant outdoors (spring) | Mar 5 – May 5 |
| Onions | Start seeds indoors (spring) | Jan 22 – Feb 18 |
| Onions | Transplant outdoors (spring) | Mar 22 – Apr 20 |
| Broccoli | Start seeds indoors (spring) | Feb 15 – Mar 21 |
| Broccoli | Transplant outdoors (spring) | Mar 22 – Apr 20 |
| Broccoli | Start seeds indoors (fall) | Jul 1 – Jul 11 |
| Broccoli | Transplant outdoors (fall) | Jul 31 – Aug 11 |
| Cabbage | Start seeds indoors (spring) | Feb 5 – Mar 5 |
| Cabbage | Transplant outdoors (spring) | Mar 5 – Apr 5 |
| Cabbage | Start seeds indoors (fall) | Jun 21 – Jul 21 |
| Cabbage | Transplant outdoors (fall) | Jul 21 – Aug 21 |
| Leaf lettuce | Sow outdoors (spring) | Mar 5 – May 21 |
| Leaf lettuce | Sow outdoors (fall) | Jul 21 – Sep 6 |
| Spinach | Sow outdoors (spring) | Feb 26 – Apr 11 |
| Spinach | Sow outdoors (fall) | Aug 7 – Sep 11 |
| Radishes | Sow outdoors (spring) | Mar 5 – Apr 25 |
| Radishes | Sow outdoors (fall) | Jul 21 – Sep 21 |
| Kale | Sow outdoors (spring) | Mar 22 – Apr 11 |
| Kale | Sow outdoors (fall) | Jul 14 – Aug 21 |
| Carrots | Sow outdoors (spring) | Apr 5 – May 21 |
| Carrots | Sow outdoors (fall) | Jun 21 – Aug 6 |
| Garlic | Plant outdoors (fall) | Oct 21 – Nov 21 |
Where these dates come from
ZIP code 66728 is matched to the NOAA station Columbus, KS, 12.3 km away, at 893 ft elevation (24 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Columbus, KS (used) | 893 ft | Apr 5 | Oct 31 |
| Joplin Regional Airport, MO | 980 ft | Apr 9 | Oct 27 |
| Pittsburg, KS | 908 ft | Apr 7 | Oct 30 |
| Joplin 24 N, MO | 952 ft | Apr 6 | Oct 24 |
Frost dates near Crestline
- Riverton, KS 66770 · last Apr 5, first Oct 31
- Galena, KS 66739 · last Apr 9, first Oct 27
- Carl Junction, MO 64834 · last Apr 9, first Oct 27
- Weir, KS 66781 · last Apr 5, first Oct 31
- Scammon, KS 66773 · last Apr 5, first Oct 31
- Baxter Springs, KS 66713 · last Apr 6, first Oct 27
- Columbus, KS 66725 · last Apr 5, first Oct 31
- Asbury, MO 64832 · last Apr 9, first Oct 27
Frequently asked questions
- When is the last frost in Crestline, KS?
- For ZIP code 66728, the average last spring frost (32°F) is April 5, based on NOAA 1991-2020 climate normals for the Columbus, KS weather station. There is a 1-in-10 chance of a frost after April 22.
- When is the first frost in Crestline, KS?
- The average first fall frost (32°F) is October 31. There is a 1-in-10 chance of frost by October 18, so tender plants are at risk from that point on.
- How long is the growing season in 66728?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 208 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.