ZIP 66218 Zone 6b
Kansas · USDA zone 6b, average annual extreme minimum -5°F to 0°F.
Nearest qualified station: BONNER SPRINGS, KS US (USC00140957), 5.5 miles from the Census ZCTA internal point for this ZIP.
Outside the median season Growing seasonTicks: 10%, 50%, and 90%
Last 32°F in spring
NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.
| Probability | Date | How to read it |
|---|---|---|
| 90% | April 1 | Earlier date. A last 32°F on or after this day is common. |
| 50% | April 16 | Median. |
| 10% | May 1 | Later date. A last 32°F on or after this day is uncommon. |
First 32°F in fall
NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.
| Probability | Date | How to read it |
|---|---|---|
| 10% | October 9 | Earlier date. A first 32°F on or before this day is uncommon. |
| 50% | October 22 | Median. |
| 90% | November 2 | Later date. A first 32°F on or before this day is common. |
32°F growing-season length
Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.
| Probability the season is at least this long | Days |
|---|---|
| 10% | 208 |
| 50% | 188 |
| 90% | 167 |
28°F threshold
| 10% | 50% | 90% | |
|---|---|---|---|
| Last, on or after | April 22 | April 5 | March 19 |
| First, on or before | October 17 | October 31 | November 14 |
| Season at least | 228 days | 206 days | 186 days |
36°F threshold
| 10% | 50% | 90% | |
|---|---|---|---|
| Last, on or after | May 9 | April 28 | April 12 |
| First, on or before | September 29 | October 13 | October 24 |
| Season at least | 187 days | 168 days | 148 days |
Station BONNER SPRINGS, KS US (USC00140957). Completeness flag R, 13 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 100%. Freeze dates are conditional on that threshold occurring. Elevation 259.1 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.