Yreka, CA 96097 Frost Dates
Yreka, CA: when does the frost end?
Around 04/30 is the usual last spring frost, about 245 days away. Fall's first freeze usually shows up around 10/18, roughly 169 days after the last spring frost.
Zone 8a (10 to 15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Yreka, not a forecast for this year.
Stretching the season past the first frost
With roughly 7 weeks until Yreka'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
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/20 and only about 1 year in 10 sees frost after that.
Yreka against the rest of the dataset
Yreka's growing season runs about 169 days, ranking 29,398 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 2,390 of 2,555.
Learn more
Before leaning on 96097's figures: the frost range explains how to read the range around Yreka's dates instead of trusting one, while local microclimates explains what one yard in Yreka can differ from the 96097 normal.