Ithaca, NY Frost Dates
The last spring frost in Ithaca usually comes around May 11 and the first fall frost around October 3.
| Spring (last) | Fall (first) | |
|---|---|---|
| Frost, 32°F | May 11 | October 3 |
| Hard freeze, 28°F | April 30 | October 18 |
Growing season: about 145 days.
Frequently asked questions
When is the last frost in Ithaca, NY?
The median date of the last spring frost (32°F) is May 11. In half of years the last frost comes earlier and in half it comes later, so waiting a week or two past May 11 lowers the risk for tender plants.
When is the first frost in Ithaca?
The median date of the first fall frost (32°F) is October 3, and a hard freeze (28°F) usually follows around October 18.
How long is the growing season in Ithaca?
About 145 days between the median last spring frost and first fall frost.
NOAA NCEI U.S. Climate Normals 1991-2020, station USC00304174. Median (50% probability) dates. Low spots and valleys can frost later in spring and earlier in fall than the station.