Modesto, CA Frost Dates
The last spring frost in Modesto usually comes around January 31 and the first fall frost around December 5.
| Spring (last) | Fall (first) | |
|---|---|---|
| Frost, 32°F | January 31 | December 5 |
| Hard freeze, 28°F | January 8 | December 21 |
Growing season: about 312 days.
Frequently asked questions
When is the last frost in Modesto, CA?
The median date of the last spring frost (32°F) is January 31. In half of years the last frost comes earlier and in half it comes later, so waiting a week or two past January 31 lowers the risk for tender plants.
When is the first frost in Modesto?
The median date of the first fall frost (32°F) is December 5, and a hard freeze (28°F) usually follows around December 21.
How long is the growing season in Modesto?
About 312 days between the median last spring frost and first fall frost.
NOAA NCEI U.S. Climate Normals 1991-2020, station USW00023258. Median (50% probability) dates. Low spots and valleys can frost later in spring and earlier in fall than the station.