Placerville, ID 83666 Frost Dates
Placerville, ID: when does the frost end?
Around 06/17 is the usual last spring frost, about 293 days away. Fall's first freeze usually shows up around 09/05, roughly 80 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Placerville in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 1 week until Placerville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
06/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 07/04 and only about 1 year in 10 sees frost after that.
Placerville against the rest of the dataset
Placerville's growing season runs about 80 days, ranking 40,062 of 40,283 US ZIP codes measured here, longest to shortest. Within ID, it ranks 285 of 320.
Learn more
Before leaning on 83666's figures: local microclimates explains what one yard in Placerville can differ from the 83666 normal, while zone vs. frost date explains why Zone 6b and Placerville's frost date answer different questions.