Olathe, KS Frost Dates
The last spring frost in Olathe usually comes around April 10 and the first fall frost around October 29.
| Spring (last) | Fall (first) | |
|---|---|---|
| Frost, 32°F | April 10 | October 29 |
| Hard freeze, 28°F | March 31 | November 6 |
Growing season: about 202 days.
Frequently asked questions
When is the last frost in Olathe, KS?
The median date of the last spring frost (32°F) is April 10. In half of years the last frost comes earlier and in half it comes later, so waiting a week or two past April 10 lowers the risk for tender plants.
When is the first frost in Olathe?
The median date of the first fall frost (32°F) is October 29, and a hard freeze (28°F) usually follows around November 6.
How long is the growing season in Olathe?
About 202 days between the median last spring frost and first fall frost.
NOAA NCEI U.S. Climate Normals 1991-2020, station USC00145972. Median (50% probability) dates. Low spots and valleys can frost later in spring and earlier in fall than the station.