Last frost date in Pasadena, California
January 8
Average last frost in spring. In an early year (1 in 10) it's over by December 20; in a late year (1 in 10) it comes after February 17.
January 7
Average first frost in fall. 1 year in 10 it comes by December 20.
A 32°F night happens here about 1 years in 10; in those years these are the usual dates.
Source: NOAA U.S. Climate Normals 1991–2020, station Pasadena (USC00046719), 0.9 miles from Pasadena, elevation 864 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
This station is also the nearest one for La Cañada Flintridge, San Marino and South Pasadena, so their frost dates are the same as Pasadena's.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Dec 20 | Jan 8 | Feb 17 |
| First frost in fall | Dec 20 | Jan 7 | Feb 14 |
Frost-free days in an average year: 365
| Chance in a year | Average last in spring | Average first in fall | |
|---|---|---|---|
| Light frost (36°F) | 8 years in 10 | Jan 17 | Dec 28 |
| Frost (32°F) | 1 years in 10 | Jan 8 | Jan 7 |
| Hard freeze (28°F) | Under 1 year in 20 | — | — |
Nights at 32°F or colder in an average year: 0.1
What to plant now in Pasadena
USDA's planting table covers places whose average last freeze is between January 30 and June 10, and whose first freeze is between August 30 and December 20. Pasadena's frost dates fall outside it, so we don't give planting dates for it.
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. How we match the table.
Nearby in California
- Glendale 6 mi · last frost Jan 2
- El Monte 9 mi · last frost Jan 4
- Monrovia 9 mi · last frost Apr 28
- Downey 15 mi · frost rare
- Culver City 18 mi · frost rare