Frost dates for Burbank Glendale Pasadena, CA
When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.
Last spring frost
December 31
typical year
Safe to plant
January 15
frost is over in 9 of 10 years
First fall frost
December 28
typical year
Growing season
365 days
frost-free, typical year
Frost watch this week
Tonight's and the next six nights' lows from the National Weather Service forecast for the station's location. Frost: 32°F or colder. Possible frost: 33–36°F, mostly in low spots on clear, still nights.
When to plant
Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.
| Crop | Start indoors | Plant outside | Fall planting |
|---|---|---|---|
| Cool-season crops | |||
| Peas | – | Dec 3 – 17 | – |
| Spinach | – | Nov 19 – Dec 10 | Nov 2 – 16 |
| Lettuce | – | Dec 3 – 24 | Nov 2 – 16 |
| Radishes | – | Dec 3 – Jan 14 | Nov 16 – 30 |
| Onions | – | Dec 3 – 17 | – |
| Potatoes | – | Dec 10 – 24 | – |
| Carrots | – | Dec 10 – 31 | Oct 5 – 19 |
| Beets | – | Dec 3 – 17 | Oct 19 – Nov 2 |
| Kale | Oct 22 – Nov 5 | Dec 3 – 17 | Oct 19 – Nov 2 |
| Broccoli | Oct 22 – Nov 5 | Dec 17 – 31 | Oct 19 – Nov 2 |
| Cabbage | Oct 8 – 22 | Dec 3 – 17 | Oct 19 – Nov 2 |
| Garlic | – | – | Nov 16 – Dec 7 |
| Warm-season crops | |||
| Tomatoes | Nov 20 – Dec 4 | Jan 15 – 29 | – |
| Peppers | Nov 13 – 27 | Jan 22 – Feb 5 | – |
| Cucumbers | – | Jan 15 – Feb 5 | – |
| Zucchini | – | Jan 15 – Feb 12 | – |
| Pumpkins | – | Jan 15 – Feb 5 | – |
| Green beans | – | Jan 15 – Oct 19 | – |
| Sweet corn | – | Jan 15 – Feb 12 | – |
| Basil | Dec 11 – 25 | Jan 22 – 29 | – |
Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.
The year at a glance
Start indoors Plant outside Fall planting
The chance of frost, by date
| 1 year in 10 | Half of years | 9 years in 10 | |
|---|---|---|---|
| Spring frost after | January 15 | December 31 | December 12 |
| Fall frost before | December 11 | December 28 | January 15 |
Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.
Hard freeze (28°F)
A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around n/a (n/a in a late year), and the first one in fall around n/a.
Where these dates come from
NOAA weather station BURBANK GLENDALE PASADENA AP, CA US (USW00023152), 1991–2020 climate normals. It's the nearest station for 7 zip codes, all within 10 miles:
91040, 91042, 91342, 91352, 91504, 91605, 91606
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.