Last frost date in Healdsburg, California
February 15
Average last frost in spring. In an early year (1 in 10) it's over by January 4; in a late year (1 in 10) it comes after March 17.
December 2
Average first frost in fall. 1 year in 10 it comes by November 14.
A 32°F night happens here about 10 years in 10; in those years these are the usual dates.
Source: NOAA U.S. Climate Normals 1991–2020, station Healdsburg (USC00043875), 0.5 miles from Healdsburg, elevation 177 ft. NOAA National Centers for Environmental Information. These are long-term averages, not a forecast.
| Early year | Average | Late year | |
|---|---|---|---|
| Last frost in spring | Jan 4 | Feb 15 | Mar 17 |
| First frost in fall | Nov 14 | Dec 2 | Jan 1 |
An early or late year is one in 10: 1 year in 10 the frost comes before the early date, and 1 year in 10 after the late date.
Frost-free days in an average year: 292
Planting calendar for Healdsburg
Fall planting
USDA dates for places whose average first freeze is about November 30 (Healdsburg: December 2).
- OkraJune 1 – Sept 20 (past for this year)
- SoybeansJune 1 – July 30 (past for this year)
- Summer squashJune 1 – Sept 1 (past for this year)
- Sweet potatoesJune 1 – July 1 (past for this year)
- Swiss chardJune 1 – Nov 1Now
- Peppers plantsJune 15 – Sept 1 (past for this year)
- Black-eyed peasJuly 1 – Sept 10 (past for this year)
- Eggplant plantsJuly 1 – Sept 1 (past for this year)
- CucumbersJuly 15 – Sept 15 (past for this year)
- Winter squashJuly 15 – Aug 15 (past for this year)
- Broccoli plantsAug 1 – Oct 1 (past for this year)
- Brussels sprouts plantsAug 1 – Oct 1 (past for this year)
- Celery and celeriac plantsAug 1 – Dec 1Now
- Lima beansAug 1 – Sept 15 (past for this year)
- PotatoesAug 1 – Sept 15 (past for this year)
- TomatoesAug 1 – Sept 1 (past for this year)
- Cauliflower plantsAug 15 – Oct 10 (past for this year)
- SalsifyAug 15 – Sept 30 (past for this year)
- ShallotsAug 15 – Oct 15 (past for this year)
- Snap beansAug 15 – Sept 20 (past for this year)
- Witloof chicoryAug 15 – Sept 30 (past for this year)
- BeetsSept 1 – Dec 15Now
- Cabbage plantsSept 1 – Dec 31Now
- Chinese cabbageSept 1 – Nov 1Now
- Collards plantsSept 1 – Dec 1Now
- EndiveSept 1 – Nov 15Now
- Florence fennelSept 1 – Nov 15Now
- GarlicSept 1 – Nov 15Now
- Head lettuce plantsSept 1 – Dec 1Now
- KaleSept 1 – Dec 1Now
- KohlrabiSept 1 – Dec 1Now
- Leaf lettuceSept 1 – Dec 1Now
- LeeksSept 1 – Nov 1Now
- Mustard greensSept 1 – Dec 1Now
- Onion seedSept 1 – Nov 1Now
- ParsleySept 1 – Dec 31Now
- ParsnipsSept 1 – Nov 15Now
- RadishesSept 1 – Dec 31Now
- RutabagaSept 1 – Nov 15Now
- SorrelSept 1 – Nov 15Now
- TurnipsSept 1 – Nov 15Now
- CarrotsSept 15 – Dec 1Now
- DandelionSept 15 – Dec 15Now
- Corn saladOct 1 – Dec 31Now
- Garden peasOct 1 – Dec 31Now
- Onion plants plantsOct 1 – Dec 31Now
- SpinachOct 1 – Dec 31Now
- Upland cressOct 1 – Dec 31Now
- Chervil and chivesNov 1 – Dec 31Soon
- Onion setsNov 1 – Dec 31Soon
USDA lists horseradish as generally spring-planted here.
Spring planting
USDA dates for places whose average last freeze is about February 18 (Healdsburg: February 15).
- Cabbage plantsJan 1 – Feb 25
- Chervil and chivesJan 1 – Feb 1
- Collards plantsJan 1 – Mar 15
- Corn saladJan 1 – Mar 15
- Garden peasJan 1 – Mar 1
- Head lettuce plantsJan 1 – Feb 1
- Leaf lettuceJan 1 – Mar 15
- LeeksJan 1 – Feb 15
- Onion plants plantsJan 1 – 15
- Onion seedJan 1 – 15
- Onion setsJan 1 – 15
- ParsleyJan 1 – 30
- ParsnipsJan 1 – Feb 1
- RadishesJan 1 – Apr 1
- ShallotsJan 1 – Feb 20
- SpinachJan 1 – Mar 1
- Cauliflower plantsJan 10 – Feb 10
- TurnipsJan 10 – Mar 1
- Broccoli plantsJan 15 – Feb 15
- Brussels sprouts plantsJan 15 – Feb 15
- CarrotsJan 15 – Mar 1
- DandelionJan 15 – Feb 15
- EndiveJan 15 – Mar 1
- Florence fennelJan 15 – Mar 1
- PotatoesJan 15 – Mar 1
- SalsifyJan 15 – Feb 20
- SorrelJan 15 – Mar 1
- Upland cressJan 15 – Feb 15
- BeetsJan 20 – Apr 1
- Celery and celeriac plantsJan 20 – Feb 20
- KaleJan 20 – Feb 10
- KohlrabiJan 20 – Feb 10
- Swiss chardJan 20 – Apr 15
- Cantaloupe (muskmelon)Feb 15 – Apr 15
- CucumbersFeb 15 – Apr 15
- Mustard greensFeb 15 – Apr 15
- WatermelonFeb 15 – Apr 15
- Eggplant plantsFeb 20 – Apr 1
- Sweet cornFeb 20 – Apr 15
- Black-eyed peasMar 1 – June 15
- Lima beansMar 1 – May 1
- New Zealand spinachMar 1 – Apr 15
- OkraMar 1 – June 1
- Peppers plantsMar 1 – May 1
- Snap beansMar 1 – May 1
- Summer squashMar 1 – Apr 15
- TomatoesMar 1 – Apr 20
- SoybeansMar 10 – June 30
- Sweet potatoesMar 20 – June 1
USDA lists chinese cabbage, garlic as generally fall-planted here.
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5 (earliest safe spring and latest safe fall dates), applied to this place's NOAA frost dates. “Plants” means setting out transplants, not sowing seed. How we match the table.
Nearby in California
- Windsor 6 mi · last frost Mar 2
- Santa Rosa 15 mi · last frost Feb 25
- Rohnert Park 21 mi · last frost Feb 25
- Clearlake 26 mi · last frost Apr 10
- Petaluma 29 mi · last frost Feb 28