Pasadena, CA Frost Dates
The last spring frost in Pasadena usually comes around January 8 and the first fall frost around January 7.
| Spring (last) | Fall (first) | |
|---|---|---|
| Frost, 32°F | January 8 | January 7 |
| Hard freeze, 28°F | Rare | Rare |
Growing season: about 365 days.
Frequently asked questions
When is the last frost in Pasadena, CA?
The median date of the last spring frost (32°F) is January 8. In half of years the last frost comes earlier and in half it comes later, so waiting a week or two past January 8 lowers the risk for tender plants.
When is the first frost in Pasadena?
The median date of the first fall frost (32°F) is January 7.
How long is the growing season in Pasadena?
About 365 days between the median last spring frost and first fall frost.
NOAA NCEI U.S. Climate Normals 1991-2020, station USC00046719. Median (50% probability) dates. Low spots and valleys can frost later in spring and earlier in fall than the station.