Frost dates for 67449Herington, KS
The average last spring frost in Herington is April 24 and the average first fall frost is October 14, giving a typical growing season of about 173 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 24
- Average first fall frost
- Oct 14
- Growing season
- 173 days
Safer after May 8 (1-in-10 risk)
Possible by Sep 29 (1-in-10 risk)
Last frost typically in 179 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 19 · May 3 · May 17 | Sep 23 · Oct 5 · Oct 18 | 154 days | 100% |
| Frost / freeze (32°F) | Apr 9 · Apr 24 · May 8 | Sep 29 · Oct 14 · Oct 28 | 173 days | 100% |
| Hard freeze (28°F) | Mar 31 · Apr 13 · May 1 | Oct 10 · Oct 24 · Nov 6 | 192 days | 100% |
Planting calendar for Herington
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 24 – May 30 |
| Tomatoes | Transplant outdoors | May 10 – Jun 24 |
| Peppers | Start seeds indoors | Mar 24 – Apr 24 |
| Peppers | Transplant outdoors | May 24 – Jun 24 |
| Eggplant | Start seeds indoors | Apr 10 – May 9 |
| Eggplant | Transplant outdoors | May 24 – Jun 24 |
| Cucumbers | Sow outdoors | May 24 – Jul 4 |
| Summer squash | Sow outdoors | May 10 – Jun 24 |
| Winter squash & pumpkins | Sow outdoors | May 24 – Jun 24 |
| Snap beans | Sow outdoors | May 10 – Jul 27 |
| Sweet corn | Sow outdoors | May 10 – Jun 24 |
| Watermelon & cantaloupe | Sow outdoors | May 24 – Jun 24 |
| Okra | Sow outdoors | May 17 – Jun 9 |
| Peas | Sow outdoors (spring) | Mar 24 – May 9 |
| Potatoes | Plant outdoors (spring) | Mar 24 – May 24 |
| Onions | Start seeds indoors (spring) | Feb 10 – Mar 9 |
| Onions | Transplant outdoors (spring) | Apr 10 – May 9 |
| Broccoli | Start seeds indoors (spring) | Mar 6 – Apr 9 |
| Broccoli | Transplant outdoors (spring) | Apr 10 – May 9 |
| Broccoli | Start seeds indoors (fall) | Jun 14 – Jun 24 |
| Broccoli | Transplant outdoors (fall) | Jul 14 – Jul 25 |
| Cabbage | Start seeds indoors (spring) | Feb 24 – Mar 24 |
| Cabbage | Transplant outdoors (spring) | Mar 24 – Apr 24 |
| Cabbage | Start seeds indoors (fall) | Jun 4 – Jul 4 |
| Cabbage | Transplant outdoors (fall) | Jul 4 – Aug 4 |
| Leaf lettuce | Sow outdoors (spring) | Mar 24 – Jun 9 |
| Leaf lettuce | Sow outdoors (fall) | Jul 4 – Aug 20 |
| Spinach | Sow outdoors (spring) | Mar 17 – Apr 30 |
| Spinach | Sow outdoors (fall) | Jul 21 – Aug 25 |
| Radishes | Sow outdoors (spring) | Mar 24 – May 14 |
| Radishes | Sow outdoors (fall) | Jul 4 – Sep 4 |
| Kale | Sow outdoors (spring) | Apr 10 – Apr 30 |
| Kale | Sow outdoors (fall) | Jun 27 – Aug 4 |
| Carrots | Sow outdoors (spring) | Apr 24 – Jun 9 |
| Carrots | Sow outdoors (fall) | Jun 4 – Jul 20 |
| Garlic | Plant outdoors (fall) | Oct 4 – Nov 4 |
Where these dates come from
ZIP code 67449 is matched to the NOAA station Herington, KS, 5 km away, at 1,338 ft elevation (73 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Herington, KS (used) | 1,338 ft | Apr 24 | Oct 14 |
| Council Grove Lake, KS | 1,315 ft | Apr 11 | Oct 25 |
| Chapman, KS | 1,111 ft | Apr 17 | Oct 20 |
| Marion Rsvr, KS | 1,369 ft | Apr 8 | Oct 30 |
Frost dates near Herington
- Burdick, KS 66838 · last Apr 24, first Oct 14
- Lost Springs, KS 66859 · last Apr 24, first Oct 14
- Woodbine, KS 67492 · last Apr 24, first Oct 14
- White City, KS 66872 · last Apr 24, first Oct 14
- Hope, KS 67451 · last Apr 24, first Oct 14
- Ramona, KS 67475 · last Apr 24, first Oct 14
- Wilsey, KS 66873 · last Apr 11, first Oct 25
- Lincolnville, KS 66858 · last Apr 8, first Oct 30
Frequently asked questions
- When is the last frost in Herington, KS?
- For ZIP code 67449, the average last spring frost (32°F) is April 24, based on NOAA 1991-2020 climate normals for the Herington, KS weather station. There is a 1-in-10 chance of a frost after May 8.
- When is the first frost in Herington, KS?
- The average first fall frost (32°F) is October 14. There is a 1-in-10 chance of frost by September 29, so tender plants are at risk from that point on.
- How long is the growing season in 67449?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 173 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.