Conroe, TX Frost Dates
The last spring frost in Conroe usually comes around March 11 and the first fall frost around November 19.
| Spring (last) | Fall (first) | |
|---|---|---|
| Frost, 32°F | March 11 | November 19 |
| Hard freeze, 28°F | February 21 | December 4 |
Growing season: about 253 days.
Frequently asked questions
When is the last frost in Conroe, TX?
The median date of the last spring frost (32°F) is March 11. In half of years the last frost comes earlier and in half it comes later, so waiting a week or two past March 11 lowers the risk for tender plants.
When is the first frost in Conroe?
The median date of the first fall frost (32°F) is November 19, and a hard freeze (28°F) usually follows around December 4.
How long is the growing season in Conroe?
About 253 days between the median last spring frost and first fall frost.
NOAA NCEI U.S. Climate Normals 1991-2020, station USW00053902. Median (50% probability) dates. Low spots and valleys can frost later in spring and earlier in fall than the station.