Frost dates by ZIP code: The nearest NOAA stations to your ZIP, 1991-2020 normals
Enter a five-digit ZIP code. PlainClimate finds its center (Census Bureau 2024) and the five nearest NOAA stations with frost dates, and shows each station's last spring and first autumn 32°F dates with its distance and elevation.
Frost dates near ZIP 66202
The USDA's 2023 Plant Hardiness Zone Map puts ZIP 66202 in zone 6b (the coldest night of a typical year: -5 to 0°F).
The nearest station, Kansas City Downtown Airport, MO, is 8 miles from the ZIP's center: its last spring frost comes after April 4 in half of years and after April 20 in one year in ten. By the USDA's method its plant hardiness zone is 6b.
| Station | Distance | Elevation | Last frost (median) | 1 in 10 after | First frost (median) | Hardiness zone |
|---|---|---|---|---|---|---|
| Kansas City Downtown Airport, MO | 8 mi | 742 ft | April 4 | April 20 | November 2 | 6b |
| Overland Park, KSOlathe (3 mi E) | 11 mi | 1,055 ft | April 10 | April 24 | October 29 | 6b |
| Bonner Springs, KS | 12 mi | 850 ft | April 16 | May 1 | October 22 | – |
| Olathe, KSOlathe Johnson County Exec Airport | 13 mi | 1,070 ft | April 8 | April 23 | October 29 | 6b |
| Independence, MO | 15 mi | 985 ft | April 10 | April 26 | October 27 | 6b |
Frost comes later in spring at higher and colder stations and earlier in low, open ground: prefer a station at a similar elevation to yours. Hardiness zone in the table: the USDA's rule (the average of each year's coldest night, 1991-2020) applied to the station's own record.
Every frost threshold at Kansas City Downtown Airport
NOAA publishes the dates for several temperatures and odds. A 30% spring date means a 3-in-10 chance of a later frost (the convention almanacs use); 50% is the median; 10% the cautious date.
| Threshold | Spring, 10% | Spring, 30% | Spring, 50% | Spring, 90% | Autumn, 50% | Autumn, 10% |
|---|---|---|---|---|---|---|
| 36°F (light frost) | May 2 | April 22 | April 15 | April 1 | October 25 | October 12 |
| 32°F | April 20 | April 10 | April 4 | March 17 | November 2 | October 21 |
| 28°F (hard freeze) | April 10 | April 1 | March 26 | March 6 | November 11 | October 28 |
| 24°F | April 1 | March 21 | March 14 | February 25 | November 20 | November 3 |
Source: NOAA NCEI 1991-2020 annual normals; ZIP centers: Census Bureau 2024 Gazetteer; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. Autumn 10%: one year in ten has its first frost before this date.