Chino Hills, CA Frost Dates
The last spring frost in Chino Hills usually comes around January 17 and the first fall frost around December 19.
| Spring (last) | Fall (first) | |
|---|---|---|
| Frost, 32°F | January 17 | December 19 |
| Hard freeze, 28°F | January 3 | December 30 |
Growing season: about 335 days.
Frequently asked questions
When is the last frost in Chino Hills, CA?
The median date of the last spring frost (32°F) is January 17. In half of years the last frost comes earlier and in half it comes later, so waiting a week or two past January 17 lowers the risk for tender plants.
When is the first frost in Chino Hills?
The median date of the first fall frost (32°F) is December 19, and a hard freeze (28°F) usually follows around December 30.
How long is the growing season in Chino Hills?
About 335 days between the median last spring frost and first fall frost.
NOAA NCEI U.S. Climate Normals 1991-2020, station USW00003179. Median (50% probability) dates. Low spots and valleys can frost later in spring and earlier in fall than the station.