Frost dates for 66938Clyde, KS
The average last spring frost in Clyde is April 18 and the average first fall frost is October 19, giving a typical growing season of about 183 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 18
- Average first fall frost
- Oct 19
- Growing season
- 183 days
Safer after May 2 (1-in-10 risk)
Possible by Oct 3 (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 29 · May 11 | Sep 26 · Oct 10 · Oct 22 | 163 days | 100% |
| Frost / freeze (32°F) | Apr 3 · Apr 18 · May 2 | Oct 3 · Oct 19 · Nov 1 | 183 days | 100% |
| Hard freeze (28°F) | Mar 22 · Apr 7 · Apr 22 | Oct 15 · Oct 29 · Nov 12 | 203 days | 100% |
Planting calendar for Clyde
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 18 – May 24 |
| Tomatoes | Transplant outdoors | May 4 – Jun 29 |
| Peppers | Start seeds indoors | Mar 18 – Apr 18 |
| Peppers | Transplant outdoors | May 18 – Jun 18 |
| Eggplant | Start seeds indoors | Apr 4 – May 3 |
| Eggplant | Transplant outdoors | May 18 – Jun 18 |
| Cucumbers | Sow outdoors | May 18 – Jul 9 |
| Summer squash | Sow outdoors | May 4 – Jun 18 |
| Winter squash & pumpkins | Sow outdoors | May 18 – Jun 18 |
| Snap beans | Sow outdoors | May 4 – Aug 1 |
| Sweet corn | Sow outdoors | May 4 – Jun 29 |
| Watermelon & cantaloupe | Sow outdoors | May 18 – Jun 18 |
| Okra | Sow outdoors | May 11 – Jun 3 |
| Peas | Sow outdoors (spring) | Mar 18 – May 3 |
| Potatoes | Plant outdoors (spring) | Mar 18 – May 18 |
| Onions | Start seeds indoors (spring) | Feb 4 – Mar 3 |
| Onions | Transplant outdoors (spring) | Apr 4 – May 3 |
| Broccoli | Start seeds indoors (spring) | Feb 28 – Apr 3 |
| Broccoli | Transplant outdoors (spring) | Apr 4 – May 3 |
| Broccoli | Start seeds indoors (fall) | Jun 19 – Jun 29 |
| Broccoli | Transplant outdoors (fall) | Jul 19 – Jul 30 |
| Cabbage | Start seeds indoors (spring) | Feb 18 – Mar 18 |
| Cabbage | Transplant outdoors (spring) | Mar 18 – Apr 18 |
| Cabbage | Start seeds indoors (fall) | Jun 9 – Jul 9 |
| Cabbage | Transplant outdoors (fall) | Jul 9 – Aug 9 |
| Leaf lettuce | Sow outdoors (spring) | Mar 18 – Jun 3 |
| Leaf lettuce | Sow outdoors (fall) | Jul 9 – Aug 25 |
| Spinach | Sow outdoors (spring) | Mar 11 – Apr 24 |
| Spinach | Sow outdoors (fall) | Jul 26 – Aug 30 |
| Radishes | Sow outdoors (spring) | Mar 18 – May 8 |
| Radishes | Sow outdoors (fall) | Jul 9 – Sep 9 |
| Kale | Sow outdoors (spring) | Apr 4 – Apr 24 |
| Kale | Sow outdoors (fall) | Jul 2 – Aug 9 |
| Carrots | Sow outdoors (spring) | Apr 18 – Jun 3 |
| Carrots | Sow outdoors (fall) | Jun 9 – Jul 25 |
| Garlic | Plant outdoors (fall) | Oct 9 – Nov 9 |
Where these dates come from
ZIP code 66938 is matched to the NOAA station Concordia Muni Ap, KS, 21 km away, at 1,469 ft elevation (186 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Concordia Muni Ap, KS (used) | 1,469 ft | Apr 18 | Oct 19 |
| Concordia 1 W, KS | 1,481 ft | Apr 21 | Oct 19 |
| Clay Ctr, KS | 1,201 ft | Apr 19 | Oct 19 |
| Belleville, KS | 1,530 ft | Apr 22 | Oct 17 |
Frost dates near Clyde
- Clifton, KS 66937 · last Apr 24, first Oct 14
- Agenda, KS 66930 · last Apr 22, first Oct 17
- Aurora, KS 67417 · last Apr 18, first Oct 19
- Morganville, KS 67468 · last Apr 19, first Oct 19
- Concordia, KS 66901 · last Apr 18, first Oct 19
- Cuba, KS 66940 · last Apr 22, first Oct 17
- Miltonvale, KS 67466 · last Apr 18, first Oct 19
- Palmer, KS 66962 · last Apr 24, first Oct 14
Frequently asked questions
- When is the last frost in Clyde, KS?
- For ZIP code 66938, the average last spring frost (32°F) is April 18, based on NOAA 1991-2020 climate normals for the Concordia Muni Ap, KS weather station. There is a 1-in-10 chance of a frost after May 2.
- When is the first frost in Clyde, KS?
- The average first fall frost (32°F) is October 19. 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 66938?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 183 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.